From bogus@does.not.exist.com Mon Mar 2 15:31:33 2015 From: bogus@does.not.exist.com () Date: Mon, 02 Mar 2015 23:31:33 -0000 Subject: No subject Message-ID: boundary temperature may be deffined. In principle setting a very small = wall convection coefficient (HBACK) would fisically lead to an adiabatic = condition, but from the manual it seems it leads to the oposite (wall = temperature equal to boudary temperature). Two aproximations I can think = of are to specify the identical condition, in which case an adiabatic = plane would apear WITHIN the wall, or specifying a layer with a very = high resistence at the outer side of the wall. But is there not a way to = specify the boundary adiabatic condition straight? Regards, Xavier ------=_NextPart_000_0038_01C4D892.69465BA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi,

Is there a direct way to specify an = adiabatic=20 boundary wall in TYPE56?. From what I could find in the documentation, = only=20 boundary walls with a boundary temperature may be deffined. In principle = setting=20 a very small wall convection coefficient (HBACK) would fisically lead to = an=20 adiabatic condition, but from the manual it seems it leads to the = oposite (wall=20 temperature equal to boudary temperature). Two aproximations I can think = of are=20 to specify the identical condition, in which case an adiabatic plane = would apear=20 WITHIN the wall, or specifying a layer with a very high resistence at = the outer=20 side of the wall. But is there not a way to specify the boundary = adiabatic=20 condition straight?

Regards,

Xavier

------=_NextPart_000_0038_01C4D892.69465BA0-- From aalqubaisi at pi.ac.ae Sun Mar 1 02:09:37 2015 From: aalqubaisi at pi.ac.ae (Ayesha Mohammed Al Qubaisi) Date: Sun, 1 Mar 2015 10:09:37 +0000 Subject: [TRNSYS-users] Type 651 Message-ID: <2A54F18524F711459AEE678374BED4D10AB62672@SRV03003.PI.AC.AE> Dear TRNSYS user, I'm using type 651 AC connected to type 56 building. 1) I would like to control the temperature of the zone using type 108 between 24~19 C, but it doesnt work, any idea ? 2) Also, should i add another component as fan type 112 connected to them? Type 651 AC has a blower so why do i need to add an external blower to the system ? Thanks in advance, Aisha -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Mon Mar 2 08:17:07 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Mon, 02 Mar 2015 10:17:07 -0600 Subject: [TRNSYS-users] Capacitance in TRNBuild In-Reply-To: <54F07F58.9070502@web.de> References: <54E9C512.1090308@web.de> <54ECAC13.1070602@tess-inc.com> <54F07F58.9070502@web.de> Message-ID: <54F48D03.8030908@tess-inc.com> Ole, The conduction transfer function method (which takes into account the capacitance of the walls) is used for walls, ceilings, roofs, floors, etc. It is not used for the windows nor their frames. I don't think that the Type56 window model attributes any thermal capacitance to the windows or window frames. best, David On 2/27/2015 08:29, Ole Nienaber wrote: > David, > thanks for the advice. But can I take e.g. windows into account with > these models? Now I model my whole geometric zone with Google SketchUp > using the Trnsys3d plug-in. > Greets, > Ole > > Am 24.02.2015 um 17:51 schrieb David BRADLEY: >> Ole, >> To add to what Jean Marais said, by including the wall capacitance >> in the zone and making only resistive walls you are turning Type56 >> into something resembling a lumped capacitance model and are no >> longer taking advantage of there being any difference between the air >> temperature and the surface temperatures. If that is the kind of >> model that you want to use then there are some actual lumped >> capacitance building models either as a single zone model the >> standard library (Type88) or as a multizone model in the TESS Loads >> and Structures library (Types 759 and 660) >> best, >> David >> >> >> >> On 2/22/2015 06:01, Ole Nienaber wrote: >>> Dear all, >>> >>> I'm trying to model a building zone in TRNBuild. The store capacity >>> is specified by 90 Wh/(m?*K). Unfortunately there is no information >>> about the single store capacities (e.g. walls, furniture,...). Now >>> my idea was to just model the zone with massless walls and to add >>> the whole store capacity to the capacity in TRNBuild (normally the >>> wall capacity is not valued in this parameter). Normally I don't see >>> any problems regarding to this way of calculation, becauce I only >>> use the absolute value of the capacity. Do you see any problems in >>> doing this? >>> >>> Thanks and greets, >>> Ole >>> _______________________________________________ >>> TRNSYS-users mailing list >>> TRNSYS-users at lists.onebuilding.org >>> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org >> > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com From d.bradley at tess-inc.com Mon Mar 2 13:25:18 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Mon, 02 Mar 2015 15:25:18 -0600 Subject: [TRNSYS-users] Type 651 In-Reply-To: <2A54F18524F711459AEE678374BED4D10AB62672@SRV03003.PI.AC.AE> References: <2A54F18524F711459AEE678374BED4D10AB62672@SRV03003.PI.AC.AE> Message-ID: <54F4D53E.3090703@tess-inc.com> Aisha, without seeing your project, there isn't really any way of telling why the controls aren't working. You should send your project (*.tpf), the buiding file (*.b17) and any other files needed in order to run the project to your distributor for assistance. If you only have to cool your building then you can use the blower that is part of Type651 as the system fan. If you have a need to provide heating using a furnace or an electric coil then I would recommend that you set the Type651 fan power to zero and use a Type112 as the system fan. The system fan will run whenever there is a call for either heating or cooling. kind regards, David On 3/1/2015 04:09, Ayesha Mohammed Al Qubaisi wrote: > > Dear TRNSYS user, > > I?m using type 651 AC connected to type 56 building. > > 1) I would like to control the temperature of the zone using type 108 > between 24~19 C, but it doesnt work, any idea ? > > 2) Also, should i add another component as fan type 112 connected to > them? > > Type 651 AC has a blower so why do i need to add an external blower to > the system ? > > Thanks in advance, > > Aisha > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From Hiller at Transsolar.com Mon Mar 2 23:29:40 2015 From: Hiller at Transsolar.com (Marion Hiller) Date: Tue, 3 Mar 2015 07:29:40 +0000 Subject: [TRNSYS-users] Capacitance in TRNBuild In-Reply-To: <54F48D03.8030908@tess-inc.com> References: <54E9C512.1090308@web.de> <54ECAC13.1070602@tess-inc.com> <54F07F58.9070502@web.de> <54F48D03.8030908@tess-inc.com> Message-ID: Ole, As david mentioned the Type 56 window doesn't account of any thermal capacity of glazing and frame. Marion -----Urspr?ngliche Nachricht----- Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von David BRADLEY Gesendet: Montag, 2. M?rz 2015 17:17 An: TRNSYS users mailing list at OneBuilding.org Betreff: Re: [TRNSYS-users] Capacitance in TRNBuild Ole, The conduction transfer function method (which takes into account the capacitance of the walls) is used for walls, ceilings, roofs, floors, etc. It is not used for the windows nor their frames. I don't think that the Type56 window model attributes any thermal capacitance to the windows or window frames. best, David On 2/27/2015 08:29, Ole Nienaber wrote: > David, > thanks for the advice. But can I take e.g. windows into account with > these models? Now I model my whole geometric zone with Google SketchUp > using the Trnsys3d plug-in. > Greets, > Ole > > Am 24.02.2015 um 17:51 schrieb David BRADLEY: >> Ole, >> To add to what Jean Marais said, by including the wall capacitance >> in the zone and making only resistive walls you are turning Type56 >> into something resembling a lumped capacitance model and are no >> longer taking advantage of there being any difference between the air >> temperature and the surface temperatures. If that is the kind of >> model that you want to use then there are some actual lumped >> capacitance building models either as a single zone model the >> standard library (Type88) or as a multizone model in the TESS Loads >> and Structures library (Types 759 and 660) best, David >> >> >> >> On 2/22/2015 06:01, Ole Nienaber wrote: >>> Dear all, >>> >>> I'm trying to model a building zone in TRNBuild. The store capacity >>> is specified by 90 Wh/(m?*K). Unfortunately there is no information >>> about the single store capacities (e.g. walls, furniture,...). Now >>> my idea was to just model the zone with massless walls and to add >>> the whole store capacity to the capacity in TRNBuild (normally the >>> wall capacity is not valued in this parameter). Normally I don't see >>> any problems regarding to this way of calculation, becauce I only >>> use the absolute value of the capacity. Do you see any problems in >>> doing this? >>> >>> Thanks and greets, >>> Ole >>> _______________________________________________ >>> TRNSYS-users mailing list >>> TRNSYS-users at lists.onebuilding.org >>> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.o >>> rg >> > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org From mastourihicham at gmail.com Tue Mar 3 04:19:55 2015 From: mastourihicham at gmail.com (Hicham MASTOURI) Date: Tue, 3 Mar 2015 12:19:55 +0000 Subject: [TRNSYS-users] Windows shading schedule Message-ID: Hi , Am trying to find a typical type for employing shading schedules (For winter and summer) for 1 year simulation, but the schedule cannot be set according to many configurations of opening/shading, it allows only for one configuration for the whole year round, is there any hint regarding this issue. For instance i want this schedule : from 8 a.m to 5 p.m shadings to be opened ( months : december to february) to be closed for the rest of the simulation. Thank you, Kindest Regards *Cadi Ayyad University of Marrakech - ????? ?????? ???? ?????* *Hicham MastouriDoctorant Sciences Physique et Ing?nierie - FSSM MoroccoIng?nieur d'?tat en ?lectronique - AUST United Arab Emirates+ 212 6 62 76 74 49* *???? ??????????? ?????? ?????????????? 40001 ??????Physics DepartmentFaculty of Sciences SemlaliaPO Box: 2390 Marrakech 40 001Morocco* -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Tue Mar 3 08:35:56 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Tue, 03 Mar 2015 10:35:56 -0600 Subject: [TRNSYS-users] Windows shading schedule In-Reply-To: References: Message-ID: <54F5E2EC.2000803@tess-inc.com> Hicham, For more complex schedules, you need to define the value as an INPUT in TRNBuild (instead of as a SCHEDULE). You can then use any of the TRNSYS Types such as Type14 or the Types in the TESS Applications library in order to set the scheduled value. regards, David On 3/3/2015 06:19, Hicham MASTOURI wrote: > Hi , > Am trying to find a typical type for employing shading schedules (For > winter and summer) for 1 year simulation, but the schedule cannot be > set according to many configurations of opening/shading, it allows > only for one configuration for the whole year round, is there any hint > regarding this issue. > For instance i want this schedule : from 8 a.m to 5 p.m shadings to > be opened ( months : december to february) to be closed for the rest > of the simulation. > > Thank you, > Kindest Regards > > *Cadi Ayyad University of Marrakech - ????? ?????? ???? ?????* > > *Hicham Mastouri > Doctorant Sciences Physique et Ing?nierie - FSSM Morocco > Ing?nieur d'?tat en ?lectronique - AUST United Arab Emirates > + 212 6 62 76 74 49*** > > *???? ??????? > ???? ?????? ????????? > ????? 40001 ?????? > Physics Department > Faculty of Sciences Semlalia > PO Box: 2390 Marrakech 40 001 > Morocco* > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From s_wanone at yahoo.com Tue Mar 3 10:24:49 2015 From: s_wanone at yahoo.com (safone samsuddin) Date: Tue, 3 Mar 2015 18:24:49 +0000 (UTC) Subject: [TRNSYS-users] Type 917 Message-ID: <236621402.1470254.1425407089179.JavaMail.yahoo@mail.yahoo.com> Dear TRNSYS User I have tried to simulate the type TYPE 917 and 941 AWHP, but couldn't manage to heat up a Type 56 building as I connected to the outlet air temperature from the Heat Pump to TGround in Type 56.? However, It wouldn't heat up the Air temperature zone of the building. Does anyone here know how to control the exiting fluid temperature of the AWHP Type 917 or 941.? Thanks Saf -------------- next part -------------- An HTML attachment was scrubbed... URL: From Renee.Cools at b2ai.com Wed Mar 4 02:06:28 2015 From: Renee.Cools at b2ai.com (=?iso-8859-1?Q?Ren=E9e_Cools?=) Date: Wed, 4 Mar 2015 10:06:28 +0000 Subject: [TRNSYS-users] Windows shading - total radiation on a window Message-ID: Hi, I asked this question before, but no solution yet. Is there an output from Trnbuild for the real radiation on a window. So with the influence of building overhang but without the influence of a mobile solarscreen? I have building with a very large trapezium shaped overhang and below 6 windows. During the day, the shading is different on each window. Additionally there are mobile solar screens on each window. They should close if there is more than 150W/m? on the window. If you use the "automatic control" according to window type. There is no "correction" for the large overhang, or nearby buildings. If you use output 103 en 104 the shading of the mobile solar screen is added each time the screen is down, so they go up on the first timestep, down on the next, and then up again.. Output 931 gives you the same as "automatic control" How to control each mobile solar screen ? taking into account the large overhang? Met vriendelijke groeten | Cordialement | Kind regards Ren?e Cools Technical engineering - Industrial Environmental Engineer Industrial Environmental Engineer BURO II & ARCHI+I -------------- next part -------------- An HTML attachment was scrubbed... URL: From l.f.r.peeters at gmail.com Wed Mar 4 02:24:15 2015 From: l.f.r.peeters at gmail.com (leen peeters) Date: Wed, 4 Mar 2015 11:24:15 +0100 Subject: [TRNSYS-users] active layer Message-ID: Dear all, we are using the active layer model of EMPA, built in in type 56, to simulate a solar boiler of the type equal to floor heating. In our case we used the auto segmentation leading to 3 different segments of the active layer. With 66 kg/h at 1,055 specific weight, inlet temperatures below 25 DC gave a fluent simulation at 15 minutes timestep. However, once simulating with higher inlet temperatures warmer climatic zones (e.g. Casablanca) fail at around 3400 hours in the simulation. In this case, we get a specific message that the inlet mass flow rate for the third part of the segmented roof requires a minimum mass flow rate that is higher than the input one. Opening the TRNBUILD file, the minimum is around 12 kg/h. The message in the list file mentions a minimum of over 30. A smaller timestep did not change the error. Are we too close to the safety limits built in the EMPA model, or is there another thing we forgot to take into account? Thanks already! Leen -------------- next part -------------- An HTML attachment was scrubbed... URL: From Hiller at Transsolar.com Thu Mar 5 04:59:19 2015 From: Hiller at Transsolar.com (Marion Hiller) Date: Thu, 5 Mar 2015 12:59:19 +0000 Subject: [TRNSYS-users] active layer In-Reply-To: References: Message-ID: Dear Leen, The minimum mass flow rate is checked in order to assure the validity of the linear approximation of the e-function between inlet and outlet temperature. In the attached figure you see that the deviation between linear approach and the e-function is to large (Read line). If you split the tab into two segments in series the linear approach is used for each segment and it matches well the e-funtion (see the two green lines). A smaller time step doesn?t help for this problem, that?s correct. In general, the min. mass flow rate is checked in TRNbuild prior the simulation. The calculated min. mass flow rate during the simulation might differ from the one in TRNbuild, because Type56 differentiates between a laminar and turbulent flow, respectively. (TRNBuild doesn?t.) Without knowing the simulation files it is hard to tell what might go wrong with your simulation. It sounds strange to me that the last segment is causing the error as well as the large difference between 12 kg/h m? and 30 kg/h m?. If you can?t find anything, we may have a quick look at the inputs file.(Hotline at transsolar.com) Best, Marion Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von leen peeters Gesendet: Mittwoch, 4. M?rz 2015 11:24 An: trnsys-users at cae.wisc.edu Betreff: [TRNSYS-users] active layer Dear all, we are using the active layer model of EMPA, built in in type 56, to simulate a solar boiler of the type equal to floor heating. In our case we used the auto segmentation leading to 3 different segments of the active layer. With 66 kg/h at 1,055 specific weight, inlet temperatures below 25 DC gave a fluent simulation at 15 minutes timestep. However, once simulating with higher inlet temperatures warmer climatic zones (e.g. Casablanca) fail at around 3400 hours in the simulation. In this case, we get a specific message that the inlet mass flow rate for the third part of the segmented roof requires a minimum mass flow rate that is higher than the input one. Opening the TRNBUILD file, the minimum is around 12 kg/h. The message in the list file mentions a minimum of over 30. A smaller timestep did not change the error. Are we too close to the safety limits built in the EMPA model, or is there another thing we forgot to take into account? Thanks already! Leen -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: TAB_min_massflow.png Type: image/png Size: 11539 bytes Desc: TAB_min_massflow.png URL: From Hiller at Transsolar.com Thu Mar 5 05:12:18 2015 From: Hiller at Transsolar.com (Marion Hiller) Date: Thu, 5 Mar 2015 13:12:18 +0000 Subject: [TRNSYS-users] Windows shading - total radiation on a window In-Reply-To: References: Message-ID: Hi Renee, currently, there is no other solution than running the simulation twice: a) One time only the geometric shading b) One time the geometric shading and the movable shading. For the control movable shading the radiation on the windows of a) is used. You are not the only one requesting this way of control. My college had the same problem. Therefore, the next update will include another output including geometric external shading effects only. Marion Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von Ren?e Cools Gesendet: Mittwoch, 4. M?rz 2015 11:06 An: trnsys-users at lists.onebuilding.org Betreff: [TRNSYS-users] Windows shading - total radiation on a window Hi, I asked this question before, but no solution yet. Is there an output from Trnbuild for the real radiation on a window. So with the influence of building overhang but without the influence of a mobile solarscreen? I have building with a very large trapezium shaped overhang and below 6 windows. During the day, the shading is different on each window. Additionally there are mobile solar screens on each window. They should close if there is more than 150W/m? on the window. If you use the "automatic control" according to window type. There is no "correction" for the large overhang, or nearby buildings. If you use output 103 en 104 the shading of the mobile solar screen is added each time the screen is down, so they go up on the first timestep, down on the next, and then up again.. Output 931 gives you the same as "automatic control" How to control each mobile solar screen ? taking into account the large overhang? Met vriendelijke groeten | Cordialement | Kind regards Ren?e Cools Technical engineering - Industrial Environmental Engineer Industrial Environmental Engineer BURO II & ARCHI+I -------------- next part -------------- An HTML attachment was scrubbed... URL: From Renee.Cools at b2ai.com Thu Mar 5 23:33:51 2015 From: Renee.Cools at b2ai.com (=?iso-8859-1?Q?Ren=E9e_Cools?=) Date: Fri, 6 Mar 2015 07:33:51 +0000 Subject: [TRNSYS-users] Windows shading - total radiation on a window In-Reply-To: References:

Message-ID: Thank you. Met vriendelijke groeten | Cordialement | Kind regards Ren?e Cools Technical engineering - Industrial Environmental Engineer Industrial Environmental Engineer BURO II & ARCHI+I [cid:image001.png at 01D057E8.46ABD580] From: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] On Behalf Of Marion Hiller Sent: donderdag 5 maart 2015 14:12 To: 'TRNSYS users mailing list at OneBuilding.org' Subject: Re: [TRNSYS-users] Windows shading - total radiation on a window Hi Renee, currently, there is no other solution than running the simulation twice: a) One time only the geometric shading b) One time the geometric shading and the movable shading. For the control movable shading the radiation on the windows of a) is used. You are not the only one requesting this way of control. My college had the same problem. Therefore, the next update will include another output including geometric external shading effects only. Marion Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von Ren?e Cools Gesendet: Mittwoch, 4. M?rz 2015 11:06 An: trnsys-users at lists.onebuilding.org Betreff: [TRNSYS-users] Windows shading - total radiation on a window Hi, I asked this question before, but no solution yet. Is there an output from Trnbuild for the real radiation on a window. So with the influence of building overhang but without the influence of a mobile solarscreen? I have building with a very large trapezium shaped overhang and below 6 windows. During the day, the shading is different on each window. Additionally there are mobile solar screens on each window. They should close if there is more than 150W/m? on the window. If you use the "automatic control" according to window type. There is no "correction" for the large overhang, or nearby buildings. If you use output 103 en 104 the shading of the mobile solar screen is added each time the screen is down, so they go up on the first timestep, down on the next, and then up again.. Output 931 gives you the same as "automatic control" How to control each mobile solar screen ? taking into account the large overhang? Met vriendelijke groeten | Cordialement | Kind regards Ren?e Cools Technical engineering - Industrial Environmental Engineer Industrial Environmental Engineer BURO II & ARCHI+I -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.png Type: image/png Size: 18172 bytes Desc: image001.png URL: From schult.matthias at web.de Fri Mar 6 08:17:15 2015 From: schult.matthias at web.de (Matthias Schult) Date: Fri, 06 Mar 2015 17:17:15 +0100 Subject: [TRNSYS-users] supply heating element in storage tank with dumped generated power of Type 4b Message-ID: <54F9D30B.50107@web.de> Dear TRNSYS users, i want to supply a thermal storage tank type 4 for domnestic hot water with the dumped generated power of an inverter Type 48b combined with a pv-generator Type 94a and a type 47a battery. Are there any opportunities, types etc. to supply an heating element in a thermal storage with variabel power e. g. to increase the internal consumption of a pv- and heatpump-system of a family house? I'm just able to set the heating element with a fixed value on or off. Would be very thankful for an answer. Bests, Matthias From h.thieblemont at gmail.com Fri Mar 6 11:30:54 2015 From: h.thieblemont at gmail.com (=?UTF-8?B?SMOpbMOobmUgVGhpZWJsZW1vbnQ=?=) Date: Fri, 6 Mar 2015 14:30:54 -0500 Subject: [TRNSYS-users] Electrical radiant floor Message-ID: Dear TRNSYS users, I'm a new user of TRNSYS. I actually do some research about floor heating systems. I've found information about the modeling of hydronic radiant floor system, but I can't find information about electric radiant floor system. Is there exist a type or something to model eletric radiant floor system ? Thank you very much for your help. H?l?ne -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Fri Mar 6 12:36:10 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Fri, 06 Mar 2015 14:36:10 -0600 Subject: [TRNSYS-users] Electrical radiant floor In-Reply-To: References: Message-ID: <54FA0FBA.5090804@tess-inc.com> H?l?ne, You can use the "wall gain" that is associated with each wall in TRNBuild; as with most things in TRNBuild, you can define the wall gain as a constant, as a schedule, or (most likely) as an input. This will directly add energy to the wall. Kind regards, David On 3/6/2015 13:30, H?l?ne Thieblemont wrote: > Dear TRNSYS users, > > I'm a new user of TRNSYS. > I actually do some research about floor heating systems. > I've found information about the modeling of hydronic radiant floor > system, but I can't find information about electric radiant floor system. > Is there exist a type or something to model eletric radiant floor > system ? > > Thank you very much for your help. > H?l?ne > > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Fri Mar 6 12:47:00 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Fri, 06 Mar 2015 14:47:00 -0600 Subject: [TRNSYS-users] supply heating element in storage tank with dumped generated power of Type 4b In-Reply-To: <54F9D30B.50107@web.de> References: <54F9D30B.50107@web.de> Message-ID: <54FA1244.4090503@tess-inc.com> Matthias, If you have access to Type534 (in the TESS Storage Library) it is quite easy to add energy directly to any of the nodes in the tank. Unfortunately there isn't an easy way to do what you are proposing in either Type4 or Type60. best, David On 3/6/2015 10:17, Matthias Schult wrote: > Dear TRNSYS users, > > i want to supply a thermal storage tank type 4 for domnestic hot water > with the dumped generated power of an inverter Type 48b combined with > a pv-generator Type 94a and a type 47a battery. > Are there any opportunities, types etc. to supply an heating element > in a thermal storage with variabel power e. g. to increase the > internal consumption of a pv- and heatpump-system of a family house? > I'm just able to set the heating element with a fixed value on or off. > > Would be very thankful for an answer. > > Bests, > > Matthias > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org > -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com From annamarta.frigerio at gmail.com Fri Mar 6 23:23:27 2015 From: annamarta.frigerio at gmail.com (Anna Marta Frigerio) Date: Sat, 7 Mar 2015 08:23:27 +0100 Subject: [TRNSYS-users] Cancellation newsletter Message-ID: <121E6877-BB61-4C5D-8CEE-3DEA82C5108A@gmail.com> Hi, Please cancel me from the newsletter list, the address I am registered with is annamarta.frigerio at gmail.com. Many thanks, Anna Marta Frigerio Inviato da iPhone From shoaibkhan0759 at yahoo.com Sat Mar 7 11:58:36 2015 From: shoaibkhan0759 at yahoo.com (shoaib Khan) Date: Sat, 7 Mar 2015 19:58:36 +0000 (UTC) Subject: [TRNSYS-users] help Message-ID: <1924260510.264537.1425758316562.JavaMail.yahoo@mail.yahoo.com> Can anybody tell me how to calculate the cooling load of a building using TrnsBuild??M. Shoaib Ahmed Khan Pakistan -------------- next part -------------- An HTML attachment was scrubbed... URL: From shofolai at lsbu.ac.uk Mon Mar 9 09:04:12 2015 From: shofolai at lsbu.ac.uk (Shofolahan, Idris Adewale) Date: Mon, 9 Mar 2015 16:04:12 +0000 Subject: [TRNSYS-users] Forcing Function Type 14h problem Message-ID: <1425917052260.82737@lsbu.ac.uk> Hi there, I'm working on solar water heating system.I wanted to test the performance of the weather file before using it, by replacing it with the generic forcing function type 14h to keep the beam radiation on the tilted surface of component type 538 . I compared the outlet temperature with and without the forcing functions type 14h. [cid:9d5acee5-8ec9-4e58-8fe3-e212968a31db] I plotted the ?output temperature on the online printer,but the model without the forcing function gave an output temperature of 20.8 degrees while output temp. of the model with the forcing function was 15.8 degrees. Find screenshot of the two above. What is the reason for the difference in the output temperature of the models? Regards Idris ============================================ The LSBU communications disclaimer can be found at http://www.lsbu.ac.uk/ict/legal/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: pastedImage.png Type: image/png Size: 192661 bytes Desc: pastedImage.png URL: From d.bradley at tess-inc.com Mon Mar 9 10:37:57 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Mon, 09 Mar 2015 12:37:57 -0500 Subject: [TRNSYS-users] Forcing Function Type 14h problem In-Reply-To: <1425917052260.82737@lsbu.ac.uk> References: <1425917052260.82737@lsbu.ac.uk> Message-ID: <54FDDA75.4080503@tess-inc.com> Idris, In the case without the forcing function, there are 700W/m2 of solar radiation incident on the collector surface at all times. In the case with the forcing function there is whatever amount of solar radiation that the forcing function determines there to be. Please bear in mind that when you change the units of an input, TRNSYS /does not/ perform any automatic unit conversions. The Type expects to receive a value in the default units (kJ/h.m2 in this case). If your forcing function is giving a value, that value is being interpreted by Type538 as being given in kJ/h.m2. kind regards, David On 3/9/2015 11:04, Shofolahan, Idris Adewale wrote: > > Hi there, > > > I'm working on solar water heating system.I wanted to test the > performance of the weather file before using it, by replacing it > with the generic forcing function type 14h to keep the beam radiation > on the tilted surface of component type 538 . I compared the outlet > temperature with andwithout the forcing functions type 14h. > > > > I plotted the ?output temperature on the online printer,but the model > without the forcing function gave an output temperature of 20.8 > degrees while output temp. of the model with the forcing function was > 15.8 degrees. Find screenshot of the two above. What is the reason > for the difference in the output temperature of the models? > > > Regards > > Idris > > > ============================================ > The LSBU communications disclaimer can be found at > http://www.lsbu.ac.uk/ict/legal/ > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: image/png Size: 192661 bytes Desc: not available URL: From pmecm at leeds.ac.uk Mon Mar 9 11:36:29 2015 From: pmecm at leeds.ac.uk (Erica Marshall) Date: Mon, 9 Mar 2015 18:36:29 +0000 Subject: [TRNSYS-users] 'Radiator' heating Units Type 161 Message-ID: <0FF15BFDE4634440B5F0D983CDF44C4E01C7B908295A@HERMES8.ds.leeds.ac.uk> Hi, Has anyone had experience using the Radiator unit, Type 161, 162, 120? I'd like to check whether they will satisfy my requirements before I purchase them. If anyone has used them and wouldn't mind answering some of my questions, I'd be most appreciative. Thanks, Erica - - - - - Rici Marshall PhD Researcher DTC Low Carbon Technologies University of Leeds Leeds LS2 9JT E: pmecm at leeds.ac.uk W: www.personal.leeds.ac.uk/~pmecm T: @RiciMarshall -------------- next part -------------- An HTML attachment was scrubbed... URL: From infoaiguasol at aiguasol.coop Mon Mar 9 14:11:20 2015 From: infoaiguasol at aiguasol.coop (Info Aiguasol) Date: Mon, 9 Mar 2015 22:11:20 +0100 Subject: [TRNSYS-users] TRNSYS Training Course June 2015 - Barcelona Message-ID: Dear TRNsys Users, We are organizing a basic course of Trnsys in Barcelona in June 2015: 10th-11th-12th June, 2015 Course focused on the use of Simulation Studio for systems simulation and TRNBuild for building simulation. The course is organized to have a duration of three days, from 9am to 18pm, but you can enroll two or three days, depending on the applications of the program in which you are interested. The first two days of the course are focused on system simulation and parametric analysis, while the third day is specific to the simulation of buildings. Students will be introduced to the Simulation Studio and TrnBuild interface. On the third day the use of the plugin for Google SketchUp (Trnsys3D) will be explained. The course includes the explanation of parametric analysis with TRNEDIT and optimization with TRNOPT (second day). The course will be held in Spanish. Please visit our website for detailed information about the course. If you are from a university and you are interested in buying the course, please email formacion at aiguasol.coop to receive 15% of discount. Best regards, Aiguasol Team -- *Aiguasol* Sistemes Avan?ats d'Energia Solar T?rmica SCCL C/ Roger de Ll?ria, 29 3r 2a 08009 Barcelona Tel: (+34) 93 342 47 55 Fax: (+34) 93 342 47 56 Mob: (+34) 666 58 63 89 infoaiguasol at aiguasol.coop www.aiguasol.coop -------------- next part -------------- An HTML attachment was scrubbed... URL: From avi_rkm at yahoo.co.in Tue Mar 10 02:50:35 2015 From: avi_rkm at yahoo.co.in (avishek ray) Date: Tue, 10 Mar 2015 09:50:35 +0000 (UTC) Subject: [TRNSYS-users] Help Message-ID: <2087409732.1258416.1425981035678.JavaMail.yahoo@mail.yahoo.com> ?Hi, I am a new user of TRNSYS. I am working on vapour absorption systems. In Type 107 can the rated capacity is 425 TR. Can you please tell that just by changing the value to 1 TR can I make it function like a 1 TR system and use it in modelling . Pl help. Thanks Avishek Ray Research Fellow and Teaching Assistant Department of Energy Management Indian Institute Of Social Welfare and Business Management; Kolkata-700073 M:9038707191 -------------- next part -------------- An HTML attachment was scrubbed... URL: From shofolai at lsbu.ac.uk Tue Mar 10 06:24:26 2015 From: shofolai at lsbu.ac.uk (Shofolahan, Idris Adewale) Date: Tue, 10 Mar 2015 13:24:26 +0000 Subject: [TRNSYS-users] Forcing Function Type 14h problem In-Reply-To: <54FDDA75.4080503@tess-inc.com> References: <1425917052260.82737@lsbu.ac.uk>,<54FDDA75.4080503@tess-inc.com> Message-ID: <1425993865913.15285@lsbu.ac.uk> David, Thank you for your response to my query. I understand your explanation on the unit conversions,however,I would have thought that the reason for the availability of other unit options, is to be able to use them without changing the value. Moreover,both models have same value and units,therefore,one would expect the output to be the same. Well,I have change the unit from W/m2 to the default units (KJ/h.m2)as suggested and yet the output temperature of the models are still at variance. What do you think is the reason for this?Thank you. Regards Idris ________________________________ From: David BRADLEY Sent: 09 March 2015 17:37 To: TRNSYS users mailing list at OneBuilding.org Cc: 'idris_ade at yahoo.com' Subject: Re: [TRNSYS-users] Forcing Function Type 14h problem Idris, In the case without the forcing function, there are 700W/m2 of solar radiation incident on the collector surface at all times. In the case with the forcing function there is whatever amount of solar radiation that the forcing function determines there to be. Please bear in mind that when you change the units of an input, TRNSYS does not perform any automatic unit conversions. The Type expects to receive a value in the default units (kJ/h.m2 in this case). If your forcing function is giving a value, that value is being interpreted by Type538 as being given in kJ/h.m2. kind regards, David On 3/9/2015 11:04, Shofolahan, Idris Adewale wrote: Hi there, I'm working on solar water heating system.I wanted to test the performance of the weather file before using it, by replacing it with the generic forcing function type 14h to keep the beam radiation on the tilted surface of component type 538 . I compared the outlet temperature with and without the forcing functions type 14h. [cid:part1.07070005.02010301 at tess-inc.com] I plotted the ?output temperature on the online printer,but the model without the forcing function gave an output temperature of 20.8 degrees while output temp. of the model with the forcing function was 15.8 degrees. Find screenshot of the two above. What is the reason for the difference in the output temperature of the models? Regards Idris ============================================ The LSBU communications disclaimer can be found at http://www.lsbu.ac.uk/ict/legal/ _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com ============================================ The LSBU communications disclaimer can be found at http://www.lsbu.ac.uk/ict/legal/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: ATT00001.png Type: image/png Size: 192661 bytes Desc: ATT00001.png URL: From d.bradley at tess-inc.com Wed Mar 11 11:25:55 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Wed, 11 Mar 2015 13:25:55 -0500 Subject: [TRNSYS-users] Help In-Reply-To: <2087409732.1258416.1425981035678.JavaMail.yahoo@mail.yahoo.com> References: <2087409732.1258416.1425981035678.JavaMail.yahoo@mail.yahoo.com> Message-ID: <550088B3.5090701@tess-inc.com> Avishek If you change the overall capacity parameter you also need to change the value of various other capacities (such as rated flow rates, auxiliary power requirements etc.). Those parameters do not all scale linearly (i.e. an absorption chiller that has half the capacity of the default one will not require half the cooling water flow for example). Also, while your simulation will run and give you results, I would be very careful about creating such a small absorption chiller. I am not aware of any absorption chillers that have such a small cooling capacity. It may be very difficult to find an appropriate set of parameters to model such a machine. regards, David On 3/10/2015 04:50, avishek ray wrote: > Hi, > > I am a new user of TRNSYS. I am working on vapour absorption systems. > In Type 107 can the rated capacity is 425 TR. Can you please tell that > just by changing the value to 1 TR can I make it function like a 1 TR > system and use it in modelling . Pl help. > > Thanks > Avishek Ray > > Research Fellow and Teaching Assistant > Department of Energy Management > Indian Institute Of Social Welfare and Business Management; Kolkata-700073 > > M:9038707191 > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From farahkojok2579 at hotmail.com Wed Mar 11 22:40:51 2015 From: farahkojok2579 at hotmail.com (Farah KOJOK) Date: Thu, 12 Mar 2015 07:40:51 +0200 Subject: [TRNSYS-users] Calling Matlab Message-ID: Dear Sir, I try to run the simulation of Trnsys project calling Matlab. I obtain a message error that the version of Matlab doesn't match with Trnsys requirement. Note that 32-bit Matlab is installed on my computer using Windows 64-bit. Best regards Farah Sent from my iPhone -------------- next part -------------- An HTML attachment was scrubbed... URL: From avi_rkm at yahoo.co.in Thu Mar 12 03:09:12 2015 From: avi_rkm at yahoo.co.in (avishek ray) Date: Thu, 12 Mar 2015 10:09:12 +0000 (UTC) Subject: [TRNSYS-users] Help Message-ID: <649027092.880842.1426154952391.JavaMail.yahoo@mail.yahoo.com> Hi, i want to model the individual system components like generator, absorber etc with TRNSYS based on the first principle model ie by use of mass and energy balance equations. I want to determine the specification of the individual components. Pl guide me how it can be possible to design it. i am urgently requiring it Regards Avishek Ray Research Fellow and Teaching Assistant Department of Energy Management Indian Institute Of Social Welfare and Business Management; Kolkata-700073 M:9038707191? -------------- next part -------------- An HTML attachment was scrubbed... URL: From avi_rkm at yahoo.co.in Thu Mar 12 03:09:12 2015 From: avi_rkm at yahoo.co.in (avishek ray) Date: Thu, 12 Mar 2015 10:09:12 +0000 (UTC) Subject: [TRNSYS-users] Help Message-ID: <649027092.880842.1426154952391.JavaMail.yahoo@mail.yahoo.com> Hi, i want to model the individual system components like generator, absorber etc with TRNSYS based on the first principle model ie by use of mass and energy balance equations. I want to determine the specification of the individual components. Pl guide me how it can be possible to design it. i am urgently requiring it Regards Avishek Ray Research Fellow and Teaching Assistant Department of Energy Management Indian Institute Of Social Welfare and Business Management; Kolkata-700073 M:9038707191? -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Thu Mar 12 05:49:24 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Thu, 12 Mar 2015 07:49:24 -0500 Subject: [TRNSYS-users] Help In-Reply-To: <649027092.880842.1426154952391.JavaMail.yahoo@mail.yahoo.com> References: <649027092.880842.1426154952391.JavaMail.yahoo@mail.yahoo.com> Message-ID: <55018B54.6010304@tess-inc.com> Avishek, TRNSYS does not contain models of the component parts of an absorption chiller. Its model of an absorption chiller is a performance map that gives COP and capacity as a function of the current inlet conditions of the chilled water, cooling water, and hot water streams. The TESS HVAC and CoGen libraries contain similar performance map models for single and double effect steam and direct fired machines. In order to make a model of an absorption chiller from first principals, you would have to write models of those component pieces yourself using a Fortran compiler based on the information available in the 07-Programmer's Guide manual Regards, David On 3/12/2015 05:09, avishek ray wrote: > Hi, > > i want to model the individual system components like generator, > absorber etc with TRNSYS based on the first principle model ie by use > of mass and energy balance equations. I want to determine the > specification of the individual components. Pl guide me how it can be > possible to design it. i am urgently requiring it > > > > > Regards > Avishek Ray > > Research Fellow and Teaching Assistant > Department of Energy Management > Indian Institute Of Social Welfare and Business Management; Kolkata-700073 > > M:9038707191 > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Thu Mar 12 05:55:04 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Thu, 12 Mar 2015 07:55:04 -0500 Subject: [TRNSYS-users] Calling Matlab In-Reply-To: References: Message-ID: <55018CA8.2060804@tess-inc.com> Farah, You need to make sure that the version of the Type155.dll located in the ..\Trnsys17\Exe directory matches the version of MatLab that you are using. You should be able to find various versions of Type155.dll (compiled for different versions of Matlab) located in the ..\Trnsys17\Exe\DLLs\ directory. Other common problems are 1. the path to Matlabs \bin directory appearing more than once in the environment variable path and 2. not having administrator control on the computer (both the user and the system need to have full control) best, David On 3/12/2015 00:40, Farah KOJOK wrote: > Dear Sir, > I try to run the simulation of Trnsys project calling Matlab. > I obtain a message error that the version of Matlab doesn't match with > Trnsys requirement. > Note that 32-bit Matlab is installed on my computer using Windows 64-bit. > Best regards > Farah > > Sent from my iPhone > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From Mattias.Ericsson at varmex.se Fri Mar 13 05:23:11 2015 From: Mattias.Ericsson at varmex.se (Mattias Ericsson) Date: Fri, 13 Mar 2015 12:23:11 +0000 Subject: [TRNSYS-users] Calling EES Message 129 Message-ID: <777D646A442160489D76D7417D296031601DC6FC@Varmex2011> I am trying to call EES for every time step. The link seems to work since EES is opened but then it closes and I get the TRNSYS Error 129: "TRNSYS Message 129 : The referenced Unit has tried to set an Output value higher than the number of Outputs that the Type reserved for itself." I get the same Message when I use my own EES-file or the sample file compressor.ees. Does anyone have a clue what the problem could be? Best regards Mattias Ericsson -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Fri Mar 13 07:29:14 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Fri, 13 Mar 2015 09:29:14 -0500 Subject: [TRNSYS-users] Calling EES Message 129 In-Reply-To: <777D646A442160489D76D7417D296031601DC6FC@Varmex2011> References: <777D646A442160489D76D7417D296031601DC6FC@Varmex2011> Message-ID: <5502F43A.8010300@tess-inc.com> Mattias, The 4th parameter of Type66 asks for the number of outputs that are expected to be returned by EES. If EES is putting more outputs onto the clipboard than are expected then the error you mention would be triggered. You say that you get this error using compressor.ees but does the error come when you are calling EES from the Calling EES.tpf project or when you call compressor.ees from your own project. If the value of Type66's 4th parameter and the number of items being placed on the clipboard in the $Export 'CLIPBOARD' line in the EES file match then please send your *.tpf and the *.ees file (as well as any other files needed in order to run the project) to your distributor for assistance and debugging. kind regards, David On 3/13/2015 07:23, Mattias Ericsson wrote: > > I am trying to call EES for every time step. The link seems to work > since EES is opened but then it closes and I get the TRNSYS Error 129: > > ?TRNSYS Message 129 : The referenced Unit has tried to set an > Output value higher than the number of Outputs that the Type reserved > for itself.? > > I get the same Message when I use my own EES-file or the sample file > compressor.ees. > > Does anyone have a clue what the problem could be? > > Best regards > > Mattias Ericsson > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From em10107 at fe.up.pt Fri Mar 13 11:12:27 2015 From: em10107 at fe.up.pt (em10107) Date: Fri, 13 Mar 2015 18:12:27 +0000 Subject: [TRNSYS-users] Help Message-ID: The BUI. file I am using can effectivelly model this building? I considered the existence of a false ceilling from 2.5 m height onwards. If I don't use a false ceilling how should I model the building and it's walls? Is the attic correctly modelled by just using 3 walls like in the example from the manual? If I use overhangs and wingwalls do I need to model the roof or the walls in blue? The receiver can be the whole wall? If it is the whole wall is it needed to create a new type34 for each window in my building? Best regards -------------- next part -------------- A non-text attachment was scrubbed... Name: C) House V3 MZB 26.06.2014_Page_1 copy 2.jpg Type: application/octet-stream Size: 1153722 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... 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From em10107 at fe.up.pt Fri Mar 13 13:41:40 2015 From: em10107 at fe.up.pt (em10107) Date: Fri, 13 Mar 2015 20:41:40 +0000 Subject: [TRNSYS-users] Post Help with wingwalls and ceillings Message-ID: Please delete my previous mail and post the one I sent from my personal mail (remoaldo10 at gmail.com), I still require the help of all users, but I think my previous mail contains information I should ommit so I sent a new one. My apologies for the disturbance Best regards, Diogo Remoaldo From remoaldo10 at gmail.com Fri Mar 13 13:29:29 2015 From: remoaldo10 at gmail.com (Diogo Remoaldo) Date: Fri, 13 Mar 2015 20:29:29 +0000 Subject: [TRNSYS-users] Help with wingwalls and ceilling Message-ID: The BUI. file I am using can effectivelly model this building? I considered the existence of a false ceilling from 2.5 m height onwards. If I don't use a false ceilling how should I model the building and it's walls? Is the attic correctly modelled by just using 3 walls like in the example from the manual? If I use overhangs and wingwalls do I need to model the roof or the walls in blue? The receiver can be the whole wall? If it is the whole wall is it needed to create a new type34 for each window in my building? Best regards, Diogo Remoaldo -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Project.zip Type: application/zip Size: 432825 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: wal.png Type: image/png Size: 69419 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: wall.png Type: image/png Size: 45244 bytes Desc: not available URL: From em10107 at fe.up.pt Fri Mar 13 14:42:15 2015 From: em10107 at fe.up.pt (em10107) Date: Fri, 13 Mar 2015 21:42:15 +0000 Subject: [TRNSYS-users] Help with wingwall and ceilling Message-ID: Thank you very much! From atit.sut at gmail.com Sat Mar 14 12:46:36 2015 From: atit.sut at gmail.com (atit.sut@gmail.com on behalf of Atit Koonsrisuk (atit@sut.ac.th)) Date: Sun, 15 Mar 2015 02:46:36 +0700 Subject: [TRNSYS-users] tutorial about air conditioning systems Message-ID: I am looking for a tutorial for new users to get basic understanding how to use TRNSYS, especially ones that are about vapor-compression, absorption, and adsorption air conditioning system. Could you give me a suggestion please? Thank you very much. Best regards, Atit -------------- next part -------------- An HTML attachment was scrubbed... URL: From Mattias.Ericsson at varmex.se Mon Mar 16 10:02:28 2015 From: Mattias.Ericsson at varmex.se (Mattias Ericsson) Date: Mon, 16 Mar 2015 17:02:28 +0000 Subject: [TRNSYS-users] Calling EES Message 129 In-Reply-To: <5502F43A.8010300@tess-inc.com> References: <777D646A442160489D76D7417D296031601DC6FC@Varmex2011> <5502F43A.8010300@tess-inc.com> Message-ID: <777D646A442160489D76D7417D296031601E0A73@Varmex2011> Thanks David! The parameter is set correctly. I will send the files to my distributor. Regards Mattias Fr?n: David BRADLEY [mailto:d.bradley at tess-inc.com] Skickat: den 13 mars 2015 15:29 Till: TRNSYS users mailing list at OneBuilding.org Kopia: Mattias Ericsson ?mne: Re: [TRNSYS-users] Calling EES Message 129 Mattias, The 4th parameter of Type66 asks for the number of outputs that are expected to be returned by EES. If EES is putting more outputs onto the clipboard than are expected then the error you mention would be triggered. You say that you get this error using compressor.ees but does the error come when you are calling EES from the Calling EES.tpf project or when you call compressor.ees from your own project. If the value of Type66's 4th parameter and the number of items being placed on the clipboard in the $Export 'CLIPBOARD' line in the EES file match then please send your *.tpf and the *.ees file (as well as any other files needed in order to run the project) to your distributor for assistance and debugging. kind regards, David On 3/13/2015 07:23, Mattias Ericsson wrote: I am trying to call EES for every time step. The link seems to work since EES is opened but then it closes and I get the TRNSYS Error 129: "TRNSYS Message 129 : The referenced Unit has tried to set an Output value higher than the number of Outputs that the Type reserved for itself." I get the same Message when I use my own EES-file or the sample file compressor.ees. Does anyone have a clue what the problem could be? Best regards Mattias Ericsson _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From l.f.r.peeters at gmail.com Tue Mar 17 00:52:29 2015 From: l.f.r.peeters at gmail.com (leen peeters) Date: Tue, 17 Mar 2015 08:52:29 +0100 Subject: [TRNSYS-users] active layer In-Reply-To: References:

Message-ID: Marion, sorry it took me some time, but I was mostly offline last week. The model is in attach. I simulated with the weather file of Casablanca. Thanks already for your input! Leen On Thu, Mar 5, 2015 at 1:59 PM, Marion Hiller wrote: > Dear Leen, > > > > The minimum mass flow rate is checked in order to assure the validity of > the linear approximation > > of the e-function between inlet and outlet temperature. In the attached > figure > > you see that the deviation between linear approach and the e-function is > to large > > (Read line). If you split the tab into two segments in series the linear > approach is used > > for each segment and it matches well the e-funtion (see the two green > lines). > > > > A smaller time step doesn?t help for this problem, that?s correct. > > > > In general, the min. mass flow rate is checked in TRNbuild prior the > simulation. > > The calculated min. mass flow rate during the simulation might differ from > the one in TRNbuild, > > because Type56 differentiates between a laminar and turbulent flow, > respectively. > > (TRNBuild doesn?t.) > > > > Without knowing the simulation files it is hard to tell what might go > wrong with your simulation. > > It sounds strange to me that the last segment is causing the error as well > as the large difference between > > 12 kg/h m? and 30 kg/h m?. > > > > If you can?t find anything, we may have a quick look at the inputs file.( > Hotline at transsolar.com) > > > > Best, > > > > Marion > > > > > > *Von:* TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] *Im > Auftrag von *leen peeters > *Gesendet:* Mittwoch, 4. M?rz 2015 11:24 > *An:* trnsys-users at cae.wisc.edu > *Betreff:* [TRNSYS-users] active layer > > > > Dear all, > > > > we are using the active layer model of EMPA, built in in type 56, to > simulate a solar boiler of the type equal to floor heating. In our case we > used the auto segmentation leading to 3 different segments of the active > layer. > > With 66 kg/h at 1,055 specific weight, inlet temperatures below 25 DC gave > a fluent simulation at 15 minutes timestep. However, once simulating with > higher inlet temperatures warmer climatic zones (e.g. Casablanca) fail at > around 3400 hours in the simulation. In this case, we get a specific > message that the inlet mass flow rate for the third part of the segmented > roof requires a minimum mass flow rate that is higher than the input one. > Opening the TRNBUILD file, the minimum is around 12 kg/h. The message in > the list file mentions a minimum of over 30. A smaller timestep did not > change the error. > > > > Are we too close to the safety limits built in the EMPA model, or is there > another thing we forgot to take into account? > > > > Thanks already! > > > > Leen > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org > > -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: solarproof for Marion .tpf Type: application/octet-stream Size: 178661 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Project_Solarproof_v10.bld Type: application/octet-stream Size: 13664 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Project_Solarproof_v10.bui Type: application/octet-stream Size: 21989 bytes Desc: not available URL: From geba92 at hotmail.com Tue Mar 17 03:17:09 2015 From: geba92 at hotmail.com (=?iso-8859-1?B?R+ly9G1lIEJhYmlj?=) Date: Tue, 17 Mar 2015 11:17:09 +0100 Subject: [TRNSYS-users] =?iso-8859-1?q?Probl=E8me?= Message-ID: Bonjour, J'utilise Trnsys depuis peu et je suis en train de simuler la surchauffe dans une maison.J'ai seulement fait une pi?ce et je suis en train de regarder ? la r?gulation mais apr?s eu des erreurs de convergence j'ai une erreur plus importante dans mon programme mais je comprend pas ce qu'il faut faire car en modifiant parfois certaines valeurs elle part puis elle revient. Je pr?f?re tout changer au d?but que tout ? la fin.Pouvez-vous me conseiller ?Car m?me en supprimant le param?tre concerner, il me met que j'ai la m?me erreur Hi, I use Trnsys lately and I am simulating superheating in a home. I only made a room and I am looking inregulation but after had of errors of convergence I have a more important error in my programme but i don't know what to do because sometimes by changing some values the programme running. I prefer changing everything at the beginning wheneverything at the end. Can you help me? Because even by abolishing parametre to concern, he puts me that I have the same errorThe TRNSYS processor has reported that an unrecognized control card was found trying to read the input file.This error can be caused by underspecifying a required number of items in the input file. For example, specifying only 9 parameters after a "PARAMETERS 10" card has been read can this error. The line that caused this error is listed in the reported information below Reported information : SCHED_INCCO_MATIN -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Test.zip Type: application/zip Size: 357644 bytes Desc: not available URL: From s13d39 at umwelt-campus.de Tue Mar 17 03:44:43 2015 From: s13d39 at umwelt-campus.de (Stefan Hampel) Date: Tue, 17 Mar 2015 10:44:43 +0000 Subject: [TRNSYS-users] Unit Mismatch Message-ID: Hey together, i use a unit conversion routine in my projects and allways get Unit mismatch warnings when i watch the listfile after a simulation. Ive checked it again and again but for me it seems to be all correct. Then ive watched some Trnsys-examples with an Unit-Conversion Routine included and found similar warnings after a Simulation. Is there a general Problem with the Routine or do i get something totally wrong? Best regards Stefan -------------- next part -------------- An HTML attachment was scrubbed... URL: From hotline at Transsolar.com Tue Mar 17 06:46:04 2015 From: hotline at Transsolar.com (hotline) Date: Tue, 17 Mar 2015 13:46:04 +0000 Subject: [TRNSYS-users] =?iso-8859-1?q?Probl=E8me?= In-Reply-To: References: Message-ID: <8CE1BC7CED9D364DA3FD25BCCA87C1BC4F97E48D@SRV-EX01.transsolar.local> Hi, In the online Plotter the label names aren't allowed to have blancs : * Model "T sol" (Type 65) * UNIT 23 TYPE 65 T sol *$UNIT_NAME T sol *$MODEL .\Output\Online Plotter\Online Plotter Without File\Type65d.tmf *$POSITION 1159 639 *$LAYER Main # PARAMETERS 12 6 ! 1 Nb. of left-axis variables 0 ! 2 Nb. of right-axis variables 0 ! 3 Left axis minimum 25 ! 4 Left axis maximum 0 ! 5 Right axis minimum 10000 ! 6 Right axis maximum 1 ! 7 Number of plots per simulation 12 ! 8 X-axis gridpoints 0 ! 9 Shut off Online w/o removing -1 ! 10 Logical unit for output file 0 ! 11 Output file units 0 ! 12 Output file delimiter INPUTS 6 21,1 ! Temp_sol 1.03m:Soil Temperature at Node ->Left axis variable-1 19,1 ! Temp_sol 1.45m:Soil Temperature at Node ->Left axis variable-2 22,1 ! Temp_sol 1.45mur verticale:Soil Temperature at Node ->Left axis variable-3 0,0 ! [unconnected] Left axis variable-4 0,0 ! [unconnected] Left axis variable-5 0,0 ! [unconnected] Left axis variable-6 *** INITIAL INPUT VALUES T sol 1.03 V T sol 1.45 h T sol 1.45 V T sol 0 SCHED_OCCUPATION SCHED_INCCO_MATIN LABELS 3 "Temperatures [deg C]" "Temperatures [deg C]" "T sol" Instead of " T sol 1.03 V" you can write "T_sol_ 1.03_V" Marion Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von G?r?me Babic Gesendet: Dienstag, 17. M?rz 2015 11:17 An: trnsys-users at lists.onebuilding.org Betreff: [TRNSYS-users] Probl?me Bonjour, J'utilise Trnsys depuis peu et je suis en train de simuler la surchauffe dans une maison.J'ai seulement fait une pi?ce et je suis en train de regarder ? la r?gulation mais apr?s eu des erreurs de convergence j'ai une erreur plus importante dans mon programme mais je comprend pas ce qu'il faut faire car en modifiant parfois certaines valeurs elle part puis elle revient. Je pr?f?re tout changer au d?but que tout ? la fin.Pouvez-vous me conseiller ?Car m?me en supprimant le param?tre concerner, il me met que j'ai la m?me erreur Hi, I use Trnsys lately and I am simulating superheating in a home. I only made a room and I am looking inregulation but after had of errors of convergence I have a more important error in my programme but i don't know what to do because sometimes by changing some values the programme running. I prefer changing everything at the beginning wheneverything at the end. Can you help me? Because even by abolishing parametre to concern, he puts me that I have the same error The TRNSYS processor has reported that an unrecognized control card was found trying to read the input file.This error can be caused by underspecifying a required number of items in the input file. For example, specifying only 9 parameters after a "PARAMETERS 10" card has been read can this error. The line that caused this error is listed in the reported information below Reported information : SCHED_INCCO_MATIN -------------- next part -------------- An HTML attachment was scrubbed... URL: From hotline at Transsolar.com Tue Mar 17 07:12:51 2015 From: hotline at Transsolar.com (hotline) Date: Tue, 17 Mar 2015 14:12:51 +0000 Subject: [TRNSYS-users] active layer In-Reply-To: References:

Message-ID: <8CE1BC7CED9D364DA3FD25BCCA87C1BC4F97E49E@SRV-EX01.transsolar.local> Leen, before I start looking deeper into this one question concerning the ?active layer design?. The pipes of your active layer have an outside diameter of 2 cm and the pipe spacing (center to center) is only 5 cm. This is very dense. If you subtract half the outside diameter this means that you have 3 cm material in between only! Also, the coverage above/below is very small. The adjacent layer thickness is 0. 15. If you subtract half the outside diameter there is only 5 mm coverage. This really low! Are you sure that this is the system you like to simulate? Marion Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von leen peeters Gesendet: Dienstag, 17. M?rz 2015 08:52 An: TRNSYS users mailing list at OneBuilding.org Betreff: Re: [TRNSYS-users] active layer Marion, sorry it took me some time, but I was mostly offline last week. The model is in attach. I simulated with the weather file of Casablanca. Thanks already for your input! Leen On Thu, Mar 5, 2015 at 1:59 PM, Marion Hiller > wrote: Dear Leen, The minimum mass flow rate is checked in order to assure the validity of the linear approximation of the e-function between inlet and outlet temperature. In the attached figure you see that the deviation between linear approach and the e-function is to large (Read line). If you split the tab into two segments in series the linear approach is used for each segment and it matches well the e-funtion (see the two green lines). A smaller time step doesn?t help for this problem, that?s correct. In general, the min. mass flow rate is checked in TRNbuild prior the simulation. The calculated min. mass flow rate during the simulation might differ from the one in TRNbuild, because Type56 differentiates between a laminar and turbulent flow, respectively. (TRNBuild doesn?t.) Without knowing the simulation files it is hard to tell what might go wrong with your simulation. It sounds strange to me that the last segment is causing the error as well as the large difference between 12 kg/h m? and 30 kg/h m?. If you can?t find anything, we may have a quick look at the inputs file.(Hotline at transsolar.com) Best, Marion Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von leen peeters Gesendet: Mittwoch, 4. M?rz 2015 11:24 An: trnsys-users at cae.wisc.edu Betreff: [TRNSYS-users] active layer Dear all, we are using the active layer model of EMPA, built in in type 56, to simulate a solar boiler of the type equal to floor heating. In our case we used the auto segmentation leading to 3 different segments of the active layer. With 66 kg/h at 1,055 specific weight, inlet temperatures below 25 DC gave a fluent simulation at 15 minutes timestep. However, once simulating with higher inlet temperatures warmer climatic zones (e.g. Casablanca) fail at around 3400 hours in the simulation. In this case, we get a specific message that the inlet mass flow rate for the third part of the segmented roof requires a minimum mass flow rate that is higher than the input one. Opening the TRNBUILD file, the minimum is around 12 kg/h. The message in the list file mentions a minimum of over 30. A smaller timestep did not change the error. Are we too close to the safety limits built in the EMPA model, or is there another thing we forgot to take into account? Thanks already! Leen _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From l.f.r.peeters at gmail.com Tue Mar 17 10:20:28 2015 From: l.f.r.peeters at gmail.com (leen peeters) Date: Tue, 17 Mar 2015 18:20:28 +0100 Subject: [TRNSYS-users] active layer In-Reply-To: <8CE1BC7CED9D364DA3FD25BCCA87C1BC4F97E49E@SRV-EX01.transsolar.local> References:

<8CE1BC7CED9D364DA3FD25BCCA87C1BC4F97E49E@SRV-EX01.transsolar.local> Message-ID: Marion, yes indeed. This is a kind of solar thermal system. This is the way it is now installed on several roofs. So, the input values are correct. Leen On Tue, Mar 17, 2015 at 3:12 PM, hotline wrote: > Leen, > > > > before I start looking deeper into this one question concerning the > ?active layer design?. > > > > The pipes of your active layer have an outside diameter of 2 cm and the > pipe spacing (center to center) > > is only 5 cm. This is very dense. If you subtract half the outside > diameter this means that you have 3 cm material in between only! > > Also, the coverage above/below is very small. The adjacent layer thickness > is 0. 15. If you subtract half the > > outside diameter there is only 5 mm coverage. This really low! > > > > Are you sure that this is the system you like to simulate? > > > > Marion > > > > *Von:* TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] *Im > Auftrag von *leen peeters > *Gesendet:* Dienstag, 17. M?rz 2015 08:52 > *An:* TRNSYS users mailing list at OneBuilding.org > *Betreff:* Re: [TRNSYS-users] active layer > > > > Marion, > > > > sorry it took me some time, but I was mostly offline last week. > > The model is in attach. I simulated with the weather file of Casablanca. > > > > Thanks already for your input! > > > > Leen > > > > On Thu, Mar 5, 2015 at 1:59 PM, Marion Hiller > wrote: > > Dear Leen, > > > > The minimum mass flow rate is checked in order to assure the validity of > the linear approximation > > of the e-function between inlet and outlet temperature. In the attached > figure > > you see that the deviation between linear approach and the e-function is > to large > > (Read line). If you split the tab into two segments in series the linear > approach is used > > for each segment and it matches well the e-funtion (see the two green > lines). > > > > A smaller time step doesn?t help for this problem, that?s correct. > > > > In general, the min. mass flow rate is checked in TRNbuild prior the > simulation. > > The calculated min. mass flow rate during the simulation might differ from > the one in TRNbuild, > > because Type56 differentiates between a laminar and turbulent flow, > respectively. > > (TRNBuild doesn?t.) > > > > Without knowing the simulation files it is hard to tell what might go > wrong with your simulation. > > It sounds strange to me that the last segment is causing the error as well > as the large difference between > > 12 kg/h m? and 30 kg/h m?. > > > > If you can?t find anything, we may have a quick look at the inputs file.( > Hotline at transsolar.com) > > > > Best, > > > > Marion > > > > > > *Von:* TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] *Im > Auftrag von *leen peeters > *Gesendet:* Mittwoch, 4. M?rz 2015 11:24 > *An:* trnsys-users at cae.wisc.edu > *Betreff:* [TRNSYS-users] active layer > > > > Dear all, > > > > we are using the active layer model of EMPA, built in in type 56, to > simulate a solar boiler of the type equal to floor heating. In our case we > used the auto segmentation leading to 3 different segments of the active > layer. > > With 66 kg/h at 1,055 specific weight, inlet temperatures below 25 DC gave > a fluent simulation at 15 minutes timestep. However, once simulating with > higher inlet temperatures warmer climatic zones (e.g. Casablanca) fail at > around 3400 hours in the simulation. In this case, we get a specific > message that the inlet mass flow rate for the third part of the segmented > roof requires a minimum mass flow rate that is higher than the input one. > Opening the TRNBUILD file, the minimum is around 12 kg/h. The message in > the list file mentions a minimum of over 30. A smaller timestep did not > change the error. > > > > Are we too close to the safety limits built in the EMPA model, or is there > another thing we forgot to take into account? > > > > Thanks already! > > > > Leen > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From geba92 at hotmail.com Tue Mar 17 13:18:00 2015 From: geba92 at hotmail.com (=?Windows-1252?B?R+ly9G1lIEJhYmlj?=) Date: Tue, 17 Mar 2015 21:18:00 +0100 Subject: [TRNSYS-users] =?windows-1252?q?Probl=E8me?= In-Reply-To: <8CE1BC7CED9D364DA3FD25BCCA87C1BC4F97E48D@SRV-EX01.transsolar.local> References: , <8CE1BC7CED9D364DA3FD25BCCA87C1BC4F97E48D@SRV-EX01.transsolar.local> Message-ID: Hi, Thanks you it's working :) From: hotline at Transsolar.com To: trnsys-users at lists.onebuilding.org Date: Tue, 17 Mar 2015 13:46:04 +0000 Subject: Re: [TRNSYS-users] Probl?me Hi, In the online Plotter the label names aren?t allowed to have blancs : * Model "T sol" (Type 65) * UNIT 23 TYPE 65 T sol *$UNIT_NAME T sol *$MODEL .\Output\Online Plotter\Online Plotter Without File\Type65d.tmf *$POSITION 1159 639 *$LAYER Main # PARAMETERS 12 6 ! 1 Nb. of left-axis variables 0 ! 2 Nb. of right-axis variables 0 ! 3 Left axis minimum 25 ! 4 Left axis maximum 0 ! 5 Right axis minimum 10000 ! 6 Right axis maximum 1 ! 7 Number of plots per simulation 12 ! 8 X-axis gridpoints 0 ! 9 Shut off Online w/o removing -1 ! 10 Logical unit for output file 0 ! 11 Output file units 0 ! 12 Output file delimiter INPUTS 6 21,1 ! Temp_sol 1.03m:Soil Temperature at Node ->Left axis variable-1 19,1 ! Temp_sol 1.45m:Soil Temperature at Node ->Left axis variable-2 22,1 ! Temp_sol 1.45mur verticale:Soil Temperature at Node ->Left axis variable-3 0,0 ! [unconnected] Left axis variable-4 0,0 ! [unconnected] Left axis variable-5 0,0 ! [unconnected] Left axis variable-6 *** INITIAL INPUT VALUES T sol 1.03 V T sol 1.45 h T sol 1.45 V T sol 0 SCHED_OCCUPATION SCHED_INCCO_MATIN LABELS 3 "Temperatures [deg C]" "Temperatures [deg C]" "T sol" Instead of ? T sol 1.03 V? you can write ?T_sol_ 1.03_V? Marion Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von G?r?me Babic Gesendet: Dienstag, 17. M?rz 2015 11:17 An: trnsys-users at lists.onebuilding.org Betreff: [TRNSYS-users] Probl?me Bonjour, J'utilise Trnsys depuis peu et je suis en train de simuler la surchauffe dans une maison.J'ai seulement fait une pi?ce et je suis en train de regarder ? la r?gulation mais apr?s eu des erreurs de convergence j'ai une erreur plus importante dans mon programme mais je comprend pas ce qu'il faut faire car en modifiant parfois certaines valeurs elle part puis elle revient. Je pr?f?re tout changer au d?but que tout ? la fin.Pouvez-vous me conseiller ?Car m?me en supprimant le param?tre concerner, il me met que j'ai la m?me erreur Hi, I use Trnsys lately and I am simulating superheating in a home. I only made a room and I am looking inregulation but after had of errors of convergence I have a more important error in my programme but i don't know what to do because sometimes by changing some values the programme running. I prefer changing everything at the beginning wheneverything at the end. Can you help me? Because even by abolishing parametre to concern, he puts me that I have the same error The TRNSYS processor has reported that an unrecognized control card was found trying to read the input file.This error can be caused by underspecifying a required number of items in the input file. For example, specifying only 9 parameters after a "PARAMETERS 10" card has been read can this error. The line that caused this error is listed in the reported information below Reported information : SCHED_INCCO_MATIN _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From nidalabdalla at yahoo.com Wed Mar 18 04:45:48 2015 From: nidalabdalla at yahoo.com (Nidal Abdalla) Date: Wed, 18 Mar 2015 11:45:48 +0000 (UTC) Subject: [TRNSYS-users] active layer In-Reply-To: References: Message-ID: <1007060042.1061871.1426679149742.JavaMail.yahoo@mail.yahoo.com> Dear Leen Please attached the simulation output for 8760 hours for Casablanca weather. I didn't find any problem with the simulation. Regards Nidal Abdalla From: leen peeters To: TRNSYS users mailing list at OneBuilding.org Sent: Tuesday, March 17, 2015 7:20 PM Subject: Re: [TRNSYS-users] active layer Marion, yes indeed. This is a kind of solar thermal system. This is the way it is now installed on several roofs. So, the input values are correct. Leen On Tue, Mar 17, 2015 at 3:12 PM, hotline wrote: Leen,?before I start looking deeper into this one question concerning the ?active layer design?.?The pipes of your active layer have an outside diameter of 2 cm and the pipe spacing (center to center)is only 5 cm. This is very dense. If you subtract half the outside diameter this means that you have 3 cm material in between only!Also, the coverage above/below is very small. The adjacent layer thickness is 0. 15. If you subtract half theoutside diameter there is only 5 mm coverage. This really low!?Are you sure that this is the system you like to simulate??Marion?Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org]Im Auftrag von leen peeters Gesendet: Dienstag, 17. M?rz 2015 08:52 An: TRNSYS users mailing list at OneBuilding.org Betreff: Re: [TRNSYS-users] active layer?Marion,?sorry it took me some time, but I was mostly offline last week.The model?is in attach. I simulated with the weather file of Casablanca.?Thanks already for your input!?Leen?On Thu, Mar 5, 2015 at 1:59 PM, Marion Hiller wrote:Dear Leen,?The minimum mass flow rate is checked in order to assure the validity of the linear approximationof the e-function between inlet and outlet temperature. In the attached figureyou see that the deviation between linear approach and the e-function is to large(Read line). If you split the tab into two segments in series the linear approach is used for each segment and it matches well the e-funtion (see the two green lines).?A smaller time step doesn?t help for this problem, that?s correct.?In general, the min. mass flow rate is checked in TRNbuild prior the simulation.The calculated min. mass flow rate during the simulation might differ from the one in TRNbuild,because Type56 differentiates between a laminar and turbulent flow, respectively.(TRNBuild doesn?t.)?Without knowing the simulation files it is hard to tell what might go wrong with your simulation. It sounds strange to me that the last segment is causing the error as well as the large difference between12 kg/h m? and 30 kg/h m?.?If you can?t find anything, we may have a quick look at the inputs file.(Hotline at transsolar.com)?Best,?Marion??Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org]Im Auftrag von leen peeters Gesendet: Mittwoch, 4. M?rz 2015 11:24 An: trnsys-users at cae.wisc.edu Betreff: [TRNSYS-users] active layer?Dear all,?we are using the active layer model of EMPA, built in in type 56, to simulate a solar boiler of the type equal to floor heating. In our case we used the auto segmentation leading to 3 different segments of the active layer.?With 66 kg/h at 1,055 specific weight, inlet temperatures below 25 DC gave a fluent simulation at 15 minutes timestep. However, once simulating with higher inlet temperatures warmer climatic zones (e.g. Casablanca) fail at around 3400 hours in the simulation. In this case, we get a specific message that the inlet mass flow rate for the third part of the segmented roof requires a minimum mass flow rate that is higher than the input one. Opening the TRNBUILD file, the minimum is around 12 kg/h. The message in the list file mentions a minimum of over 30. A smaller timestep did not change the error.?Are we too close to the safety limits built in the EMPA model, or is there another thing we forgot to take into account???Thanks already!?Leen _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org? _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: 221_15out.rar Type: application/octet-stream Size: 787763 bytes Desc: not available URL: From Mattias.Ericsson at varmex.se Thu Mar 19 02:56:40 2015 From: Mattias.Ericsson at varmex.se (Mattias Ericsson) Date: Thu, 19 Mar 2015 09:56:40 +0000 Subject: [TRNSYS-users] Replacing .idf file Message-ID: <777D646A442160489D76D7417D296031601E1D7C@Varmex2011> Dear TRNSYS users! I need to update my geometry created in sketchup and TRNSYS3d plug in. Is it possible to import a new .idf to TRNBuild? I have looked in the archives and I find several other topics about the same issue but no answer that solves my problem. The "Update TRNSYS3d" command is greyed out in TRNBuild. There is an export command but I don't want to export an .idf from TRNBuild, I want to change my model in TRNSYS3d and then import the generated .idf to TRNBuild. Can someone explain to me what I'm missing? :) Best regards Mattias Ericsson -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Thu Mar 19 09:28:07 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Thu, 19 Mar 2015 11:28:07 -0500 Subject: [TRNSYS-users] Replacing .idf file In-Reply-To: <777D646A442160489D76D7417D296031601E1D7C@Varmex2011> References: <777D646A442160489D76D7417D296031601E1D7C@Varmex2011> Message-ID: <550AF917.6030004@tess-inc.com> Mattias, The "export" feature is where you need to start. Essentially the export feature saves any changes you have made in TRNBuild. You then open the exported idf file in SketchUp and make your geometry change, then bring the idf file back into TRNBuild. If everything worked then you'll have your new geometry and all the changes that you previously made in TRNBuild preserved. There is a tutorial on the use of Trnsys3D located in the ..\Trnsys17\Documentation directory. It includes some hints on the export/import process. best, David On 3/19/2015 04:56, Mattias Ericsson wrote: > > Dear TRNSYS users! > > I need to update my geometry created in sketchup and TRNSYS3d plug in. > Is it possible to import a new .idf to TRNBuild? > > I have looked in the archives and I find several other topics about > the same issue but no answer that solves my problem. The ?Update > TRNSYS3d? command is greyed out in TRNBuild. There is an export > command but I don?t want to export an .idf from TRNBuild, I want to > change my model in TRNSYS3d and then import the generated .idf to > TRNBuild. Can someone explain to me what I?m missing? J > > Best regards > > Mattias Ericsson > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Thu Mar 19 09:54:33 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Thu, 19 Mar 2015 11:54:33 -0500 Subject: [TRNSYS-users] Unit Mismatch In-Reply-To: References: Message-ID: <550AFF49.9030407@tess-inc.com> Stefan, It depends a bit on how you are converting your units. If you are writing a block of equations to convert units then equations have no units by default. You can assign units to an equation by using the 3-letter codes as in: mDot = 45 {MF1} the three letter code MF1 indicates a mass flow rate in kg/h. If you have checked your simulation and all the connections have units that match one another then you can ignore the warning. It may be that some of the Types you are using are not setting their own three letter input and output unit codes. best, David On 3/17/2015 05:44, Stefan Hampel wrote: > Hey together, > i use a unit conversion routine in my projects and allways get Unit > mismatch warnings when i watch the listfile after a simulation. Ive > checked it again and again but for me it seems to be all correct. > Then ive watched some Trnsys-examples with an Unit-Conversion Routine > included and found similar warnings after a Simulation. > Is there a general Problem with the Routine or do i get something > totally wrong? > > > Best regards > > Stefan > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From support at trnsys.guru Thu Mar 19 21:42:17 2015 From: support at trnsys.guru (TRNSYS support) Date: Fri, 20 Mar 2015 04:42:17 +0000 Subject: [TRNSYS-users] tutorial about air conditioning systems In-Reply-To: References: Message-ID: Dear Atit, We are developing tutorial videos to help, please fill in this form to help guide the development to best meet your needs. http://goo.gl/XUSzfy In the interim, I recommend beginning with the getting started guide. Playing around with the demonstration example projects. If you?ve got any questions, feel free to ask. Best regards, Jeremy Jeremy Osborne Director Energy Analysis & Engineering ? Enabling innovation for a sustainable future T: +61 2 8003 4323 | M: +61 4 000 63327 | E: jeremy.osborne at energyae.com 608 Harris St Sydney NSW 2007 Australia | http://www.energyae.com [linkedin] Please consider the environment before printing this email From: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] On Behalf Of atit.sut at gmail.com on behalf of Atit Koonsrisuk (atit at sut.ac.th) Sent: Sunday, 15 March 2015 6:47 AM To: trnsys-users at lists.onebuilding.org Subject: Re: [TRNSYS-users] tutorial about air conditioning systems I am looking for a tutorial for new users to get basic understanding how to use TRNSYS, especially ones that are about vapor-compression, absorption, and adsorption air conditioning system. Could you give me a suggestion please? Thank you very much. Best regards, Atit -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.png Type: image/png Size: 3021 bytes Desc: image001.png URL: From Philip.Horn at ait.ac.at Fri Mar 20 06:15:11 2015 From: Philip.Horn at ait.ac.at (Horn Philip) Date: Fri, 20 Mar 2015 13:15:11 +0000 Subject: [TRNSYS-users] TRNSYS Vacancies/paid internships/Thesis at AIT in Vienna- Austria Message-ID: Dear All, I would like to spread the word that there will be most probably a Junior Engineer position available in the course of 2015. Moreover paid internships/master/PHD-Thesis in the field of energy efficient buildings are currently available as well. We offer hands on experience in a young and motivated multidisciplinary team. Topics vary on current international and national projects. So anyone who knows potential candidates (with at least basic TRNSYS knowledge) please forward this informal offer!! Proficiency in German is desirable, but not mandatory. The city of Vienna is for the 6th time in a row, the world's Most Livable City according to the MERCER-study whatever that may mean?), so no one needs to worry that working in Vienna is too bad of a deal! Cheers from Vienna, Philip PHILIP HORN Engineer Energy Department Sustainable Buildings & Cities AIT Austrian Institute of Technology GmbH Giefinggasse 6 | 1210 Vienna | Austria M +43 664 8157941 | F +43 50550-6613 philip.horn at ait.ac.at | http://www.ait.ac.at FN: 115980 i HG Wien | UID: ATU14703506 http://www.ait.ac.at/Email-Disclaimer -------------- next part -------------- An HTML attachment was scrubbed... URL: From salessandrini at units.it Fri Mar 20 07:40:06 2015 From: salessandrini at units.it (Stefano Alessandrini) Date: Fri, 20 Mar 2015 15:40:06 +0100 Subject: [TRNSYS-users] TRNSYS Vacancies/paid internships/Thesis at AIT in Vienna- Austria In-Reply-To: References: Message-ID: Dear Philip, I'm going to discuss my PHD thesis in the field of solar cooling applications by the end of April 2015, and I cannot hide that I really would like to know something else about the vacancies opportunities that you are offering. I'm based in Trieste, not so far from Wien, and I cannot find any problem moving somewhere else for a challenging job oppurtunity. I would really be grateful If you could share any more detailed description of the open position in object. Feel free to contact me if you would like me to send you a personal CV and a presentation letter. My best regards, Stefano Alessandrini *____________________________* *M.Eng. Stefano Alessandrini* PhD at Universit? degli studi di Trieste Via Valerio, 10 34127, Trieste (Italy) Mob: +39 340 9292864 e-mail: salessandrini at units.it skype: *kushpy* *____________________________* 2015-03-20 14:15 GMT+01:00 Horn Philip : > Dear All, > > > > I would like to spread the word that there will be most probably a *Junior > Engineer position* available in the course of 2015. > > > > Moreover *paid internships/master/PHD-Thesis* in the field of energy > efficient buildings are currently available as well. > > We offer hands on experience in a young and motivated multidisciplinary > team. Topics vary on current international and national projects. > > > > So anyone who knows potential candidates (with *at least basic TRNSYS > knowledge*) please forward this informal offer!! > > Proficiency in German is desirable, but not mandatory. > > > > The city of Vienna is for the 6th time in a row, the *world's Most > Livable City *according to the MERCER-study whatever that may mean?), so > no one needs to worry that working in Vienna is too bad of a deal! > > > > Cheers from Vienna, > > Philip > > > > > > *PHILIP HORN* > > Engineer > > Energy Department > Sustainable Buildings & Cities > > > > *AIT Austrian Institute of Technology GmbH* > > Giefinggasse 6 | 1210 Vienna | Austria > > M +43 664 8157941 | F +43 50550-6613 > > philip.horn at ait.ac.at | http://www.ait.ac.at > > > > FN: 115980 i HG Wien | UID: ATU14703506 > > http://www.ait.ac.at/Email-Disclaimer > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From aalqubaisi at pi.ac.ae Sun Mar 22 07:03:13 2015 From: aalqubaisi at pi.ac.ae (Ayesha Mohammed Al Qubaisi) Date: Sun, 22 Mar 2015 14:03:13 +0000 Subject: [TRNSYS-users] psychometric chart Message-ID: <2A54F18524F711459AEE678374BED4D114093B1A@SRV03003.PI.AC.AE> Dear All, I would like to plot the values of temperature and humidity obtained from TRNSYS into a psychometric chart to show that these points falls within the range of comfort. Is it possible to do that with TRNSYS ? Maybe we can combine TRNSYS with another software to do it? If not, is there any possible software to do it ? I have around 100,000 points. Thank you for your time ! Aisha -------------- next part -------------- An HTML attachment was scrubbed... URL: From mali at masdar.ac.ae Sun Mar 22 07:34:07 2015 From: mali at masdar.ac.ae (Muhammad Tauha Ali) Date: Sun, 22 Mar 2015 14:34:07 +0000 Subject: [TRNSYS-users] psychometric chart In-Reply-To: <2A54F18524F711459AEE678374BED4D114093B1A@SRV03003.PI.AC.AE> References: <2A54F18524F711459AEE678374BED4D114093B1A@SRV03003.PI.AC.AE> Message-ID: Matlab will be great for these many points. Check SI psych file on matlab file exchange From: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] On Behalf Of Ayesha Mohammed Al Qubaisi Sent: Sunday, March 22, 2015 6:03 PM To: trnsys-users at lists.onebuilding.org Subject: [TRNSYS-users] psychometric chart Dear All, I would like to plot the values of temperature and humidity obtained from TRNSYS into a psychometric chart to show that these points falls within the range of comfort. Is it possible to do that with TRNSYS ? Maybe we can combine TRNSYS with another software to do it? If not, is there any possible software to do it ? I have around 100,000 points. Thank you for your time ! Aisha -------------- next part -------------- An HTML attachment was scrubbed... URL: From farahkojok2579 at hotmail.com Wed Mar 11 12:45:12 2015 From: farahkojok2579 at hotmail.com (Farah KOJOK) Date: Wed, 11 Mar 2015 21:45:12 +0200 Subject: [TRNSYS-users] Calling Matlab Message-ID: Dear Sir, I try to simulate a TRNSYS project calling Matlab on my computer. I obtain an error message: "Your input file uses Type 155 (Calling Matlab). "Type155.dll" was found but could not be loaded. Please make sure that a supported version of Matlab is installed and that Matlab's "bin\win32" folder is on Windows' search path" Note that my Windows is 64-bit, and the version of Matlab is 32-bit. Best regards -------------- next part -------------- An HTML attachment was scrubbed... URL: From farahkojok2579 at hotmail.com Wed Mar 11 14:18:14 2015 From: farahkojok2579 at hotmail.com (Farah KOJOK) Date: Wed, 11 Mar 2015 23:18:14 +0200 Subject: [TRNSYS-users] Calling Matlab Message-ID: Dear Sir, I try to run a Trnsys project calling Matlab function. I obtain an error message that the Matlab function doesn't match with Trnsys type. Note that I have the 32-bit version of Matlab installed on my computer and the Windows version is 64-bit. Best regards -------------- next part -------------- An HTML attachment was scrubbed... URL: From farahkojok2579 at hotmail.com Sun Mar 22 09:20:37 2015 From: farahkojok2579 at hotmail.com (Farah KOJOK) Date: Sun, 22 Mar 2015 18:20:37 +0200 Subject: [TRNSYS-users] Calling Matlab In-Reply-To: References: Message-ID: Dear sir, The mail was resent by fault. Best regards Sent from my iPhone > On Mar 22, 2015, at 6:15 PM, Farah KOJOK wrote: > > Dear Sir, > > I try to simulate a TRNSYS project calling Matlab on my computer. > > I obtain an error message: ?Your input file uses Type 155 (Calling Matlab). "Type155.dll" was found but could not be loaded. Please make sure that a supported version of Matlab is installed and that Matlab's "bin\win32" folder is on Windows' search path? > > Note that my Windows is 64-bit, and the version of Matlab is 32-bit. > > Best regards > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org From saagalli at gmail.com Sun Mar 22 11:16:16 2015 From: saagalli at gmail.com (Sergio Armenta) Date: Sun, 22 Mar 2015 19:16:16 +0100 Subject: [TRNSYS-users] Unsuscribe Message-ID: Hello, Sorry for the trouble, but is there anyway you could take me out of the mailing list? Thanks in advance! Best regards, S -------------- next part -------------- An HTML attachment was scrubbed... URL: From shahinrkl_7 at yahoo.com Mon Mar 23 04:34:28 2015 From: shahinrkl_7 at yahoo.com (Shahen Fakhraldin) Date: Mon, 23 Mar 2015 11:34:28 +0000 (UTC) Subject: [TRNSYS-users] Help in a themostat with 2 monitering temperature ( 2 temperatures to watch) Message-ID: <1436324807.672409.1427110468309.JavaMail.yahoo@mail.yahoo.com> Hi all, I am looking for a controller that depends on two monitoring temperatures (and each monitoring temp has its own set temp), and this controller works according to the conditions below: 1- if the monitoring temp 1 is below a set temp 1 ===> system Off 2- if the monitoring temp 2 is higher that a set temp 2===> system On To explain more, the system is turned Off when the first monitoring temp is below (or equal) the first set temp, and the system stays in Off condition until the 2nd monitoring temperature is higher (or equal) the 2nd setting temp where the system is turned On and continuous to be On till the 1st mentoring temperature is equal or below the 1st setting temp and so on.Is there a component in TRNSYS can do that ?Any kind of help would be most appreciated. King regards,Shahen Fakhraldin -------------- next part -------------- An HTML attachment was scrubbed... URL: From lally.fasciolo at gmail.com Mon Mar 23 07:05:53 2015 From: lally.fasciolo at gmail.com (Laura Fasciolo) Date: Mon, 23 Mar 2015 15:05:53 +0100 Subject: [TRNSYS-users] Help to Heating District with Trnsys16.1 model Message-ID: Hi Trnsys people! I'm trying to simulate a model of Heating District with Trnsys 16.1 , in my final thesis at the university. Does somebody know some Trnsys Types to simulate an ICE component and a Heat Generator? Thanks to everybody! -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Mon Mar 23 13:10:55 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Mon, 23 Mar 2015 15:10:55 -0500 Subject: [TRNSYS-users] Help in a themostat with 2 monitering temperature ( 2 temperatures to watch) In-Reply-To: <1436324807.672409.1427110468309.JavaMail.yahoo@mail.yahoo.com> References: <1436324807.672409.1427110468309.JavaMail.yahoo@mail.yahoo.com> Message-ID: <5510734F.4060900@tess-inc.com> Shahen, I think you can do this using two instances of Type108 and then an equation that combines the results into a single result. The equation will probably need to use some of the boolean logic functions such as GT(:,:). The GT(:,:) function returns a "1" if the first argument in parenthesis is greater than the second argument. kind regards, David On 3/23/2015 6:34 AM, Shahen Fakhraldin wrote: > Hi all, > > I am looking for a controller that depends on two monitoring > temperatures (and each monitoring temp has its own set temp), and this > controller works according to the conditions below: > 1- if the monitoring temp 1 is below a set temp 1 ===> system Off > 2- if the monitoring temp 2 is higher that a set temp 2===> system On > To explain more, the system is turned Off when the first monitoring > temp is below (or equal) the first set temp, and the system stays in > Off condition until the 2nd monitoring temperature is higher (or > equal) the 2nd setting temp where the system is turned On and > continuous to be On till the 1st mentoring temperature is equal or > below the 1st setting temp and so on. > Is there a component in TRNSYS can do that ? > Any kind of help would be most appreciated. > > King regards, > Shahen Fakhraldin > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Mon Mar 23 13:53:49 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Mon, 23 Mar 2015 15:53:49 -0500 Subject: [TRNSYS-users] Help to Heating District with Trnsys16.1 model In-Reply-To: References: Message-ID: <55107D5D.4010308@tess-inc.com> Lally, There is a diesel engine generator component available in the standard TRNSYS library (Type120). There is a different model of an internal combustion engine in the TESS CHP library (which is an add-on to the standard package). I am not sure what (specifically) you mean by a heat generator. There are quite a few TRNSYS components that simulate devices that generate heat. kind regards, David On 3/23/2015 9:05 AM, Laura Fasciolo wrote: > Hi Trnsys people! I'm trying to simulate a model of Heating District > with Trnsys 16.1 , in my final thesis at the university. Does somebody > know some Trnsys Types to simulate an ICE component and a Heat Generator? > Thanks to everybody! > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From lally.fasciolo at gmail.com Mon Mar 23 14:55:04 2015 From: lally.fasciolo at gmail.com (Laura Fasciolo) Date: Mon, 23 Mar 2015 22:55:04 +0100 Subject: [TRNSYS-users] Help to Heating District with Trnsys16.1 model In-Reply-To: <55107D5D.4010308@tess-inc.com> References: <55107D5D.4010308@tess-inc.com> Message-ID: Thank you so much David for your answer! I need a cogenerator, an engine which has a hot water flowrate and a certain temperature, as outputs. This is the reason why I asked for help with an ICE component and an heat generator. Could you help me? Can I find a type for a cogenerator, an engine which has a hot water flowrate and a certain temperature, as outputs? I have Trnsys 16.1 with TESS library. Thank you again! Best Regards, Lally 2015-03-23 21:53 GMT+01:00 David BRADLEY : > Lally, > There is a diesel engine generator component available in the standard > TRNSYS library (Type120). There is a different model of an internal > combustion engine in the TESS CHP library (which is an add-on to the > standard package). I am not sure what (specifically) you mean by a heat > generator. There are quite a few TRNSYS components that simulate devices > that generate heat. > kind regards, > David > > > On 3/23/2015 9:05 AM, Laura Fasciolo wrote: > > Hi Trnsys people! I'm trying to simulate a model of Heating District with > Trnsys 16.1 , in my final thesis at the university. Does somebody know some > Trnsys Types to simulate an ICE component and a Heat Generator? > Thanks to everybody! > > > _______________________________________________ > TRNSYS-users mailing listTRNSYS-users at lists.onebuilding.orghttp://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org > > > -- > *************************** > David BRADLEY > Principal > Thermal Energy Systems Specialists, LLC > 22 North Carroll Street - suite 370 > Madison, WI 53703 USA > > P:+1.608.274.2577 > F:+1.608.278.1475d.bradley at tess-inc.com > http://www.tess-inc.comhttp://www.trnsys.com > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Philip.Horn at ait.ac.at Tue Mar 24 08:42:12 2015 From: Philip.Horn at ait.ac.at (Horn Philip) Date: Tue, 24 Mar 2015 15:42:12 +0000 Subject: [TRNSYS-users] TRNSYS Vacancies/paid internships/Thesis at AIT in Vienna- Austria Message-ID: Dear All, As I got a lot of positive replies regarding internships/potential open position: I would recommend that you check the current openings on our website: http://www.ait.ac.at/workait/stelleninserate/?L=1 Your application will then be processed and forwarded to the person in charge. All the best from Vienna and thanks a lot for your positive Feedback, Philip PHILIP HORN Engineer Energy Department Sustainable Buildings & Cities AIT Austrian Institute of Technology GmbH Giefinggasse 6 | 1210 Vienna | Austria T +43 50550-6441 | M +43 664 8157941 | F +43 50550-6613 philip.horn at ait.ac.at | http://www.ait.ac.at FN: 115980 i HG Wien | UID: ATU14703506 http://www.ait.ac.at/Email-Disclaimer Von: Horn Philip [mailto:Philip.Horn at ait.ac.at] Gesendet: Freitag, 20. M?rz 2015 14:15 An: trnsys-users at lists.onebuilding.org Betreff: [TRNSYS-users] TRNSYS Vacancies/paid internships/Thesis at AIT in Vienna- Austria Dear All, I would like to spread the word that there will be most probably a Junior Engineer position available in the course of 2015. Moreover paid internships/master/PHD-Thesis in the field of energy efficient buildings are currently available as well. We offer hands on experience in a young and motivated multidisciplinary team. Topics vary on current international and national projects. So anyone who knows potential candidates (with at least basic TRNSYS knowledge) please forward this informal offer!! Proficiency in German is desirable, but not mandatory. The city of Vienna is for the 6th time in a row, the world's Most Livable City according to the MERCER-study whatever that may mean...), so no one needs to worry that working in Vienna is too bad of a deal! Cheers from Vienna, Philip PHILIP HORN Engineer Energy Department Sustainable Buildings & Cities AIT Austrian Institute of Technology GmbH Giefinggasse 6 | 1210 Vienna | Austria M +43 664 8157941 | F +43 50550-6613 philip.horn at ait.ac.at | http://www.ait.ac.at FN: 115980 i HG Wien | UID: ATU14703506 http://www.ait.ac.at/Email-Disclaimer -------------- next part -------------- An HTML attachment was scrubbed... URL: From shennaut at ulg.ac.be Tue Mar 24 08:57:48 2015 From: shennaut at ulg.ac.be (Samuel Hennaut) Date: Tue, 24 Mar 2015 16:57:48 +0100 Subject: [TRNSYS-users] =?utf-8?q?S=C3=A9minaire_TRNSYS_EXPERIENCE_2015?= In-Reply-To: <000301d05cab$d6bce110$8436a330$@ulg.ac.be> References: <000301d05cab$d6bce110$8436a330$@ulg.ac.be> Message-ID: <5511897C.5060809@ulg.ac.be> Dear Trnsys Users, Based on an initiative from the University of Li?ge, in partnership with the Universities of Greater-Region, Luxembourg & Lorraine, as well as the consultancy company ICSEED, we are pleased to announce the first TRNSYS EXPERIENCE Seminar next 28th & 29th May. This seminar is an opportunity to join Research, Engineering & Consultancy. Presentations will introduce applied research and cases promoting dynamic thermal/energy simulation as a powerful and meaningful tool either for energy & buildings, or design & auditing. More information, preliminary programme and registration available on: http://trnsysexperience.icseed.com Please feel free to download our presentation leaflet on: http://www.icseed.com/downloads/Trnsysexperience/Com/Leaflet-web.pdf This seminar will be in English. We would be pleased to welcome you in Villers-les-Nancy (FRANCE), for this first edition of TRNSYS EXPERIENCE Seminar, With kind regards, The organization committee ------------------------------------------------------------------------------------ Madame, Monsieur, A l'initiative de l'Universit? de Li?ge, en partenariat avec les Universit?s de la Grande-R?gion, de Luxembourg et de Lorraine ainsi que la soci?t? ICSEED, le s?minaire TRNSYS EXPERIENCE verra le jour les 28 & 29 mai prochains. Carrefour entre bureaux d'?tudes, architectes et recherche, ce s?minaire vise ? favoriser les rencontres, en proposant des retours d'exp?rience concrets de simulation thermique dynamique, et des ?changes entre utilisateurs de TRNSYS. */Plus d'informations, programme et inscription en ligne sur:/* http://trnsysexperience.icseed.com */Document de pr?sentation:/* http://www.icseed.com/downloads/Trnsysexperience/Com/Leaflet-web.pdf Le s?minaire, qui a une port?e internationale, sera dispens? en anglais. Comptant sur votre pr?sence pour cette premi?re ?dition, nous vous souhaitons une excellente ann?e 2015... Le comit? d'organisation, TRNSYS EXPERIENCE Seminar 2015 Logo *Samuel Hennaut*, Chercheur - Doctorant *Universit? de Li?ge* - D?partement des Sciences et Gestion de l?Environnement *Equipe BEMS* - Building Energy Monitoring and Simulation www.bems.ulg.ac.be shennaut at ulg.ac.be 185, Avenue de Longwy B-6700 ARLON +32 63 230 948 Logo -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: image/jpeg Size: 49711 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: imagesignatureemail.gif Type: image/gif Size: 70725 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Computer-icon.png Type: image/png Size: 980 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Email-icon.png Type: image/png Size: 896 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Home-icon.png Type: image/png Size: 1151 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Telephone-icon.png Type: image/png Size: 1056 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: experience.jpg Type: image/jpeg Size: 24604 bytes Desc: not available URL: From igorseso at yahoo.com Tue Mar 24 14:27:42 2015 From: igorseso at yahoo.com (Igor Seso) Date: Tue, 24 Mar 2015 21:27:42 +0000 (UTC) Subject: [TRNSYS-users] Underfloor heating three storey building Message-ID: <838274368.839233.1427232462650.JavaMail.yahoo@mail.yahoo.com> Hi, I'm modelling underfloor heating system. The building has three floors, but it has underfloor heating only on the first two floors and the third is unheated. I made the active layers and in the first zone I have ground floor-boundary(with the active layer), on the second floor I made the ?ground floor(with active layer) adjacent to the first floor zone and on the third floor I made ground floor(without active layer) ? adjacent to the second floor zone , the roof as external surface. (All of the walls are made as external surfaces)First I tried just to get the required heating energy for the zones but I get warnings - when I remove the active layers then is possible to calculate the required heating energy. ?Did I made some mistake with the adjacent zones or could be something else, any idea? Best RegardsIgor? -------------- next part -------------- An HTML attachment was scrubbed... URL: From oshafaamri at yahoo.com Wed Mar 25 01:26:18 2015 From: oshafaamri at yahoo.com (oshafaamri at yahoo.com) Date: Wed, 25 Mar 2015 08:26:18 +0000 (UTC) Subject: [TRNSYS-users] Fogging Device - Type 507 Message-ID: <1259847524.1412869.1427271978284.JavaMail.yahoo@mail.yahoo.com> Hello, I have a small building of 1 zone in which i am using shading toldo for more thermal comfort, i also want to include an evaporative cooler (Fogging device) along with the shading, i've defined all the new inputs in the building for the fogging device (%RH, air flow rate and temperature) and connect it to the building, still i get the same operative temperature as with shading only, any idea ? thanks? -------------- next part -------------- An HTML attachment was scrubbed... URL: From maviqnk at gmail.com Wed Mar 25 02:45:05 2015 From: maviqnk at gmail.com (=?UTF-8?Q?Mavi_Cambronero_V=C3=A1zquez?=) Date: Wed, 25 Mar 2015 10:45:05 +0100 Subject: [TRNSYS-users] 64-bits version type 155 Message-ID: Hi all, I need to use type 155 for connecting Trnsys and Matlab. Reading the documentation it seems that it is only available for 32-bits versions. Is there any update? Is it possible to work with 64-bits? I think 32-bits is rather outdated nowadays and could be interesting to update the type in case of it is not available for 64-bits yet. Thank you Regards, Maria -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Wed Mar 25 11:07:25 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Wed, 25 Mar 2015 13:07:25 -0500 Subject: [TRNSYS-users] Help to Heating District with Trnsys16.1 model In-Reply-To: References: <55107D5D.4010308@tess-inc.com> Message-ID: <5512F95D.50005@tess-inc.com> Laura, Type907 in the TESS CHP library has the features that you are looking for. kind regards, David On 3/23/2015 4:55 PM, Laura Fasciolo wrote: > Thank you so much David for your answer! > > I need a cogenerator, an engine which has a hot water flowrate and a > certain temperature, as outputs. This is the reason why I asked for > help with an ICE component and an heat generator. > Could you help me? Can I find a type for a cogenerator, an engine > which has a hot water flowrate and a certain temperature, as outputs? > I have Trnsys 16.1 with TESS library. > > Thank you again! > > Best Regards, > Lally > > > > 2015-03-23 21:53 GMT+01:00 David BRADLEY >: > > Lally, > There is a diesel engine generator component available in the > standard TRNSYS library (Type120). There is a different model of > an internal combustion engine in the TESS CHP library (which is an > add-on to the standard package). I am not sure what (specifically) > you mean by a heat generator. There are quite a few TRNSYS > components that simulate devices that generate heat. > kind regards, > David > > > On 3/23/2015 9:05 AM, Laura Fasciolo wrote: >> Hi Trnsys people! I'm trying to simulate a model of Heating >> District with Trnsys 16.1 , in my final thesis at the university. >> Does somebody know some Trnsys Types to simulate an ICE component >> and a Heat Generator? >> Thanks to everybody! >> >> >> _______________________________________________ >> TRNSYS-users mailing list >> TRNSYS-users at lists.onebuilding.org >> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org > > -- > *************************** > David BRADLEY > Principal > Thermal Energy Systems Specialists, LLC > 22 North Carroll Street - suite 370 > Madison, WI 53703 USA > > P:+1.608.274.2577 > F:+1.608.278.1475 > d.bradley at tess-inc.com > > http://www.tess-inc.com > http://www.trnsys.com > > -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Wed Mar 25 11:09:47 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Wed, 25 Mar 2015 13:09:47 -0500 Subject: [TRNSYS-users] 64-bits version type 155 In-Reply-To: References: Message-ID: <5512F9EB.6010107@tess-inc.com> Maria, There is not yet a 64-bit version of Type155 (or of TRNSYS). This is something that we are working on for the next version. Kind regards, David On 3/25/2015 4:45 AM, Mavi Cambronero V?zquez wrote: > Hi all, > I need to use type 155 for connecting Trnsys and Matlab. Reading the > documentation it seems that it is only available for 32-bits > versions. Is there any update? Is it possible to work with 64-bits? I > think 32-bits is rather outdated nowadays and could be interesting to > update the type in case of it is not available for 64-bits yet. > Thank you > Regards, > Maria > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Wed Mar 25 11:09:47 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Wed, 25 Mar 2015 13:09:47 -0500 Subject: [TRNSYS-users] 64-bits version type 155 In-Reply-To: References: Message-ID: <5512F9EB.6010107@tess-inc.com> Maria, There is not yet a 64-bit version of Type155 (or of TRNSYS). This is something that we are working on for the next version. Kind regards, David On 3/25/2015 4:45 AM, Mavi Cambronero V?zquez wrote: > Hi all, > I need to use type 155 for connecting Trnsys and Matlab. Reading the > documentation it seems that it is only available for 32-bits > versions. Is there any update? Is it possible to work with 64-bits? I > think 32-bits is rather outdated nowadays and could be interesting to > update the type in case of it is not available for 64-bits yet. > Thank you > Regards, > Maria > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Wed Mar 25 13:08:13 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Wed, 25 Mar 2015 15:08:13 -0500 Subject: [TRNSYS-users] Fogging Device - Type 507 In-Reply-To: <1259847524.1412869.1427271978284.JavaMail.yahoo@mail.yahoo.com> References: <1259847524.1412869.1427271978284.JavaMail.yahoo@mail.yahoo.com> Message-ID: <551315AD.5030502@tess-inc.com> Without seeing the project, it isn't really possible to know what the cause is. I would recommend verifying your simulation by using some online plotters (Type65) to check the temperature, humidity, and flow rate of air as it flows through the system and into the building. kind regards, David On 3/25/2015 3:26 AM, oshafaamri at yahoo.com wrote: > Hello, > > I have a small building of 1 zone in which i am using shading toldo > for more thermal comfort, i also want to include an evaporative cooler > (Fogging device) along with the shading, i've defined all the new > inputs in the building for the fogging device (%RH, air flow rate and > temperature) and connect it to the building, still i get the same > operative temperature as with shading only, any idea ? > > thanks > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From ahmedalnozahy at yahoo.com Thu Mar 26 02:27:28 2015 From: ahmedalnozahy at yahoo.com (Ahmed Alnozahy) Date: Thu, 26 Mar 2015 09:27:28 +0000 (UTC) Subject: [TRNSYS-users] PV/wind system Message-ID: <1591276758.1998476.1427362048282.JavaMail.yahoo@mail.yahoo.com> Dear Trnsys users,,, I want to know how I can simulate hybrid renewable energy system consists of Photovoltaic (PV) and wind turbine in Trnsys Studio.?The important issue how I can connect the components together (i.e. which output from one component should connect to the input of the other component). Best regards?Ahmed Elnaem Elnozahy PhD StudentEnergy Resources Engineering (ERE) Department Egypt-Japan University of Science and Technology (E-JUST), EgyptMobil: 002-01147160726 E-mail : ahmedalnozahy at yahoo.com? ? ? ? ? ? ? ? ahmed.elnozahy at ejust?.edu.eg -------------- next part -------------- An HTML attachment was scrubbed... URL: From Mattias.Ericsson at varmex.se Thu Mar 26 02:28:43 2015 From: Mattias.Ericsson at varmex.se (Mattias Ericsson) Date: Thu, 26 Mar 2015 09:28:43 +0000 Subject: [TRNSYS-users] TESS Type 927 Load-Source definition Message-ID: <777D646A442160489D76D7417D296031601E7F4F@Varmex2011> Dear TRNSYS users! I am creating my own performance files for the TESS Type 927 Water-Water heat pump. In the sample files "source side" and "load side" is used to define the two sides of the heat pump. In heating mode I assume the source side is the evaporator and the load side is the condenser but is the situation reversed in cooling mode? i.e. the load side is the evaporator and the source side is the condenser? In the sample files this seems to be the situation judging by the temperatures used. However when defining the component one also has to give the model a "rated source flow rate" and "rated load flow rate" as well as fluid properties on source and load side respectively. This is where I got confused since it does not say if it is in cooling or heating mode. Best regards Mattias Ericsson -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Thu Mar 26 06:45:47 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Thu, 26 Mar 2015 08:45:47 -0500 Subject: [TRNSYS-users] TESS Type 927 Load-Source definition In-Reply-To: <777D646A442160489D76D7417D296031601E7F4F@Varmex2011> References: <777D646A442160489D76D7417D296031601E7F4F@Varmex2011> Message-ID: <55140D8B.3030305@tess-inc.com> Mattias, The source and load sides remain the same whether the heat pump is in heating or cooling mode. The load side is defines as the side whose temperature you are trying to control. The source side absorbs energy from its surroundings when the heat pump is in heating mode and rejects energy to its surroundings when the heat pump is in cooling mode. kind regards, David On 3/26/2015 4:28 AM, Mattias Ericsson wrote: > > Dear TRNSYS users! > > I am creating my own performance files for the TESS Type 927 > Water-Water heat pump. > > In the sample files ?source side? and ?load side? is used to define > the two sides of the heat pump. In heating mode I assume the source > side is the evaporator and the load side is the condenser but is the > situation reversed in cooling mode? i.e. the load side is the > evaporator and the source side is the condenser? In the sample files > this seems to be the situation judging by the temperatures used. > > However when defining the component one also has to give the model a > ?rated source flow rate? and ?rated load flow rate? as well as fluid > properties on source and load side respectively. This is where I got > confused since it does not say if it is in cooling or heating mode. > > Best regards > > /Mattias Ericsson/ > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Thu Mar 26 06:54:09 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Thu, 26 Mar 2015 08:54:09 -0500 Subject: [TRNSYS-users] PV/wind system In-Reply-To: <1591276758.1998476.1427362048282.JavaMail.yahoo@mail.yahoo.com> References: <1591276758.1998476.1427362048282.JavaMail.yahoo@mail.yahoo.com> Message-ID: <55140F81.8000502@tess-inc.com> Ahmed, I would recommend you start by working with the Wind-Diesel example (..\Trnsys17\Examples\Wind Diesel\) and the Stand Alone Power System example (..\Trnsys17\Examples\Stand-Alone Power System\). Both combine wind turbines with various backup devices. The same methods can be used to combine wind turbines and PV. regards, David On 3/26/2015 4:27 AM, Ahmed Alnozahy wrote: > Dear Trnsys users,,, > > I want to know how I can simulate hybrid renewable energy system > consists of Photovoltaic (PV) and wind turbine in Trnsys Studio. > The important issue how I can connect the components together (i.e. > which output from one component should connect to the input of the > other component). > > Best regards > *Ahmed Elnaem Elnozahy > * > PhD Student > Energy Resources Engineering (ERE) Department > Egypt-Japan University of Science and Technology (E-JUST), Egypt > *Mobil: 002-01147160726** > E-mail : ahmedalnozahy at yahoo.com* > ahmed.elnozahy at ejust .edu.eg > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Thu Mar 26 10:03:22 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Thu, 26 Mar 2015 12:03:22 -0500 Subject: [TRNSYS-users] Underfloor heating three storey building In-Reply-To: <838274368.839233.1427232462650.JavaMail.yahoo@mail.yahoo.com> References: <838274368.839233.1427232462650.JavaMail.yahoo@mail.yahoo.com> Message-ID: <55143BDA.3080401@tess-inc.com> Igor, without knowing what kind of warnings you are getting it isn't really possible to guess what might be going on. If you are not able to interpret the warnings then I would recommend that you send the project and supporting files on to your distributor for assistance. kind regards, David On 3/24/2015 4:27 PM, Igor Seso wrote: > Hi, > > I'm modelling underfloor heating system. The building has three > floors, but it has underfloor heating only on the first two floors and > the third is unheated. I made the active layers and in the first zone > I have ground floor-boundary(with the active layer), on the second > floor I made the ground floor(with active layer) adjacent to the > first floor zone and on the third floor I made ground floor(without > active layer) adjacent to the second floor zone , the roof as > external surface. (All of the walls are made as external surfaces) > First I tried just to get the required heating energy for the zones > but I get warnings - when I remove the active layers then is possible > to calculate the required heating energy. > > Did I made some mistake with the adjacent zones or could be something > else, any idea? > > Best Regards > Igor > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From martber88 at gmail.com Thu Mar 26 06:54:58 2015 From: martber88 at gmail.com (Martin Berov) Date: Thu, 26 Mar 2015 14:54:58 +0100 Subject: [TRNSYS-users] Real time readings into simulation Message-ID: Dear Trnsys users, Is it possible to implement real time readings as input values into the simulation, for example real time measuring temperature inlet/outlet collector temperatures and according this values to simulate the temperature change in the tank, useful collector energy gain efficiency etc.. If it's possible, in few words hat would be the procedure which Type should be used... Thank you Best regards Martin -------------- next part -------------- An HTML attachment was scrubbed... URL: From thornton at tess-inc.com Thu Mar 26 16:36:33 2015 From: thornton at tess-inc.com (Jeff Thornton) Date: Thu, 26 Mar 2015 18:36:33 -0500 Subject: [TRNSYS-users] Real time readings into simulation In-Reply-To: References: Message-ID: <14B57421-E9EF-456E-B891-303699CEDBFC@tess-inc.com> Type 9 is your best bet. Make sure you provide the data in consistent time steps (no holes in the data, skipped steps etc.). If you have solar radiation data be extremely careful and couple Type 9 with Type 16. Refer to the manual and examples for good tips and tricks. Jeff Jeff Thornton TESS Sent from my iPhone > On Mar 26, 2015, at 8:54 AM, Martin Berov wrote: > > Dear Trnsys users, > > Is it possible to implement real time readings as input values into the simulation, for example real time measuring temperature inlet/outlet collector temperatures and according this values to simulate the temperature change in the tank, useful collector energy gain efficiency etc.. If it's possible, in few words hat would be the procedure which Type should be used... > > Thank you > > Best regards > Martin > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org From thornton at tess-inc.com Thu Mar 26 16:36:33 2015 From: thornton at tess-inc.com (Jeff Thornton) Date: Thu, 26 Mar 2015 18:36:33 -0500 Subject: [TRNSYS-users] Real time readings into simulation In-Reply-To: References: Message-ID: <14B57421-E9EF-456E-B891-303699CEDBFC@tess-inc.com> Type 9 is your best bet. Make sure you provide the data in consistent time steps (no holes in the data, skipped steps etc.). If you have solar radiation data be extremely careful and couple Type 9 with Type 16. Refer to the manual and examples for good tips and tricks. Jeff Jeff Thornton TESS Sent from my iPhone > On Mar 26, 2015, at 8:54 AM, Martin Berov wrote: > > Dear Trnsys users, > > Is it possible to implement real time readings as input values into the simulation, for example real time measuring temperature inlet/outlet collector temperatures and according this values to simulate the temperature change in the tank, useful collector energy gain efficiency etc.. If it's possible, in few words hat would be the procedure which Type should be used... > > Thank you > > Best regards > Martin > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org From donya_sh at msn.com Fri Mar 27 05:38:57 2015 From: donya_sh at msn.com (Donya Sheikh Khan) Date: Fri, 27 Mar 2015 13:38:57 +0100 Subject: [TRNSYS-users] TRNBuild and radiation from the sun Message-ID: Hi, When one generates a 3D model with the TRNSYS wizard, there is no connection made between the amount of radiation from type15 and TRNBuild type56. How does TRNBuild than receive information about the amount of radiation from the sun? The reason for asking is, that I would like to use my own weather data file (so I have to use type99 or similar), but if type56 doesn't need a link between weather file telling it the amount of radiation (from what I see), how can I use my own weather file? -- Regards Donya -------------- next part -------------- An HTML attachment was scrubbed... URL: From martber88 at gmail.com Fri Mar 27 13:11:12 2015 From: martber88 at gmail.com (Martin Berov) Date: Fri, 27 Mar 2015 21:11:12 +0100 Subject: [TRNSYS-users] Heat exchanger UA value Message-ID: Dear TRNSYS users, I'm trying to analyse the influence of the heat exchanger area on the solar fraction and collector efficiency. I'm using storage tank Type 60c with internal HX. Although I change the area and the length(keeping the outside diameter constant) I always get same results for the monthly solar fraction and efficiency - like there is no influence. What could be the reason for this? Best regards Martin -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Fri Mar 27 14:44:13 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Fri, 27 Mar 2015 16:44:13 -0500 Subject: [TRNSYS-users] TRNBuild and radiation from the sun In-Reply-To: References: Message-ID: <5515CF2D.1020607@tess-inc.com> Donya, Because the 3d model contains the geometry information needed to determine the solar radiation falling on each surface, Type56 automatically gets solar radiation from the same data file as is being used to provide the ambient temperature. You should be able to use Type99 directly and Type56 should be able to pick up the radiation itself. If you want to be more transparent about it all (and provide the radiation yourself via individual links to the building model the way we used to do) then you can open the *.b17 in TRNBuild and double click on each of the orientations shown in the project info window. Set any of the orientations you want from "internal calculation" to "external by another component." When you return to the Studio and update the building variable list you will have three new inputs for each orientation in your building description. Kind regards, David On 3/27/2015 7:38 AM, Donya Sheikh Khan wrote: > Hi, > > When one generates a 3D model with the TRNSYS wizard, there is no > connection made between the amount of radiation from type15 and > TRNBuild type56. How does TRNBuild than receive information about the > amount of radiation from the sun? > > The reason for asking is, that I would like to use my own weather data > file (so I have to use type99 or similar), but if type56 doesn't need > a link between weather file telling it the amount of radiation (from > what I see), how can I use my own weather file? > > -- > Regards > Donya > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Fri Mar 27 14:45:37 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Fri, 27 Mar 2015 16:45:37 -0500 Subject: [TRNSYS-users] Heat exchanger UA value In-Reply-To: References: Message-ID: <5515CF81.3040502@tess-inc.com> Martin, I would highly recommend that if at all possible you use Type534 from the TESS Storage Tank library in place of Type60. Type534 has an internal heat exchanger model that is far more robust than the one built in to Type60. Kind regards, David On 3/27/2015 3:11 PM, Martin Berov wrote: > Dear TRNSYS users, > > I'm trying to analyse the influence of the heat exchanger area on the > solar fraction and collector efficiency. > > I'm using storage tank Type 60c with internal HX. Although I change > the area and the length(keeping the outside diameter constant) I > always get same results for the monthly solar fraction and efficiency > - like there is no influence. > > What could be the reason for this? > > Best regards > Martin > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From f.lavoye at surya-consultants.com Sun Mar 29 14:01:46 2015 From: f.lavoye at surya-consultants.com (=?UTF-8?B?ZnLDqWTDqXJ5IGxhdm95ZQ==?=) Date: Sun, 29 Mar 2015 23:01:46 +0200 Subject: [TRNSYS-users] TMY-3 Message-ID: Dear TRnsys users, I would like to know how generate TMY-3 weather file ? I can't manage it with the version of meteonorm I have... I need Global illuminance Output for simulations and I think that only TMY-3 weather file permit it. Thanks in advance for your answer. Regards, Fred. -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Mon Mar 30 08:19:20 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Mon, 30 Mar 2015 10:19:20 -0500 Subject: [TRNSYS-users] TMY-3 In-Reply-To: References: Message-ID: <55196978.10902@tess-inc.com> Fred, There are actually a few issues here. First, both TMY2 and TMY3 are file formats. The files themselves are simply text files and can be opened and edited with notepad, Excel, etc. The definition of the format (what data appears in which column of the data file) is publicly available: for TMY2: http://rredc.nrel.gov/solar/pubs/tmy2/data.html for TMY3: http://www.nrel.gov/docs/fy08osti/43156.pdf Both the TMY2 and TMY3 formats contain fields for global illuminance. Meteonorm is able to save and export weather files in the TMY2 format. However, I do not know if it fills in the global illuminanace fields with data or if it just leaves those fields set with some default code to indicate that no data is available. If either a TMY2 or TMY3 file contains data in the global illuminance fields then TRNSYS Type15 will read and provide that data as output 44 (if you only have one surface on which Type15 is computing solar radiation). Kind regards, David On 3/29/2015 4:01 PM, fr?d?ry lavoye wrote: > Dear TRnsys users, > > I would like to know how generate TMY-3 weather file ? > I can't manage it with the version of meteonorm I have... > I need Global illuminance Output for simulations and I think that only > TMY-3 weather file permit it. > > Thanks in advance for your answer. > > Regards, > Fred. > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From martber88 at gmail.com Fri Mar 27 16:21:14 2015 From: martber88 at gmail.com (Martin Berov) Date: Sat, 28 Mar 2015 00:21:14 +0100 Subject: [TRNSYS-users] Heat exchanger UA value In-Reply-To: <5515CF81.3040502@tess-inc.com> References: <5515CF81.3040502@tess-inc.com> Message-ID: Dear David, Thank you for the suggestion. I'll use Type 534 - coiled, but can you suggest me which are usually used values for the "geometry factor for natural convection" and "geometry exponent for natural convection". Best Regards Martin On Fri, Mar 27, 2015 at 10:45 PM, David BRADLEY wrote: > Martin, > I would highly recommend that if at all possible you use Type534 from > the TESS Storage Tank library in place of Type60. Type534 has an internal > heat exchanger model that is far more robust than the one built in to > Type60. > Kind regards, > David > > > > On 3/27/2015 3:11 PM, Martin Berov wrote: > > Dear TRNSYS users, > > I'm trying to analyse the influence of the heat exchanger area on the > solar fraction and collector efficiency. > > I'm using storage tank Type 60c with internal HX. Although I change the > area and the length(keeping the outside diameter constant) I always get > same results for the monthly solar fraction and efficiency - like there is > no influence. > > What could be the reason for this? > > Best regards > Martin > > > _______________________________________________ > TRNSYS-users mailing listTRNSYS-users at lists.onebuilding.orghttp://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org > > > -- > *************************** > David BRADLEY > Principal > Thermal Energy Systems Specialists, LLC > 22 North Carroll Street - suite 370 > Madison, WI 53703 USA > > P:+1.608.274.2577 > F:+1.608.278.1475d.bradley at tess-inc.com > http://www.tess-inc.comhttp://www.trnsys.com > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From mayankhichar at gmail.com Mon Mar 30 09:16:48 2015 From: mayankhichar at gmail.com (Mayank Khichar) Date: Mon, 30 Mar 2015 21:46:48 +0530 Subject: [TRNSYS-users] Heat exchanger UA value In-Reply-To: References: <5515CF81.3040502@tess-inc.com> Message-ID: How do I unsubscribe from this mailing list?? Please, help. Mayank On Sat, Mar 28, 2015 at 4:51 AM, Martin Berov wrote: > Dear David, > > Thank you for the suggestion. I'll use Type 534 - coiled, but can you > suggest me which are usually used values for the "geometry factor for > natural convection" and "geometry exponent for natural convection". > > Best Regards > Martin > > On Fri, Mar 27, 2015 at 10:45 PM, David BRADLEY > wrote: > >> Martin, >> I would highly recommend that if at all possible you use Type534 from >> the TESS Storage Tank library in place of Type60. Type534 has an internal >> heat exchanger model that is far more robust than the one built in to >> Type60. >> Kind regards, >> David >> >> >> >> On 3/27/2015 3:11 PM, Martin Berov wrote: >> >> Dear TRNSYS users, >> >> I'm trying to analyse the influence of the heat exchanger area on the >> solar fraction and collector efficiency. >> >> I'm using storage tank Type 60c with internal HX. Although I change >> the area and the length(keeping the outside diameter constant) I always get >> same results for the monthly solar fraction and efficiency - like there is >> no influence. >> >> What could be the reason for this? >> >> Best regards >> Martin >> >> >> _______________________________________________ >> TRNSYS-users mailing listTRNSYS-users at lists.onebuilding.orghttp://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org >> >> >> -- >> *************************** >> David BRADLEY >> Principal >> Thermal Energy Systems Specialists, LLC >> 22 North Carroll Street - suite 370 >> Madison, WI 53703 USA >> >> P:+1.608.274.2577 >> F:+1.608.278.1475d.bradley at tess-inc.com >> http://www.tess-inc.comhttp://www.trnsys.com >> >> > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From thornton at tess-inc.com Mon Mar 30 09:38:25 2015 From: thornton at tess-inc.com (Jeff Thornton) Date: Mon, 30 Mar 2015 11:38:25 -0500 Subject: [TRNSYS-users] Heat exchanger UA value In-Reply-To: References: <5515CF81.3040502@tess-inc.com> Message-ID: If you don't have measured data to tune the model against, use a value of 1.0 for both. From years of calibrating the model against real data, I would also suggest a value between 0.4 and 0.6 for the Rayleigh multiplier and a value of 0.25 for the Rayleigh exponent. Jeff Thornton (Author of Type534) Sent from my iPhone > On Mar 27, 2015, at 6:21 PM, Martin Berov wrote: > > Dear David, > > Thank you for the suggestion. I'll use Type 534 - coiled, but can you suggest me which are usually used values for the "geometry factor for natural convection" and "geometry exponent for natural convection". > > Best Regards > Martin > >> On Fri, Mar 27, 2015 at 10:45 PM, David BRADLEY wrote: >> Martin, >> I would highly recommend that if at all possible you use Type534 from the TESS Storage Tank library in place of Type60. Type534 has an internal heat exchanger model that is far more robust than the one built in to Type60. >> Kind regards, >> David >> >> >> >>> On 3/27/2015 3:11 PM, Martin Berov wrote: >>> Dear TRNSYS users, >>> >>> I'm trying to analyse the influence of the heat exchanger area on the solar fraction and collector efficiency. >>> >>> I'm using storage tank Type 60c with internal HX. Although I change the area and the length(keeping the outside diameter constant) I always get same results for the monthly solar fraction and efficiency - like there is no influence. >>> >>> What could be the reason for this? >>> >>> Best regards >>> Martin >>> >>> >>> _______________________________________________ >>> TRNSYS-users mailing list >>> TRNSYS-users at lists.onebuilding.org >>> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org >> >> -- >> *************************** >> David BRADLEY >> Principal >> Thermal Energy Systems Specialists, LLC >> 22 North Carroll Street - suite 370 >> Madison, WI 53703 USA >> >> P:+1.608.274.2577 >> F:+1.608.278.1475 >> d.bradley at tess-inc.com >> >> http://www.tess-inc.com >> http://www.trnsys.com > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From mali at masdar.ac.ae Mon Mar 30 10:12:03 2015 From: mali at masdar.ac.ae (Muhammad Tauha Ali) Date: Mon, 30 Mar 2015 17:12:03 +0000 Subject: [TRNSYS-users] TMY-3 In-Reply-To: <55196978.10902@tess-inc.com> References: <55196978.10902@tess-inc.com> Message-ID: <5a8e4d6a241247ca880ce997e0cf9c57@MI-MBX-PROD1.minet.ae> Dear fred, You can refer to tmy file generator matlab code on file exchange that has the illuminance model coded in if radiation data is available. The details of the model and source material can be found on the file exchange page. The code can be modified to read 8760 records from one excel sheet. http://www.mathworks.com/matlabcentral/fileexchange/35168-weather-xls-to-tmy2 usually published tmy files contain the illuminance data. Thanks, Tauha From: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] On Behalf Of David BRADLEY Sent: Monday, March 30, 2015 7:19 PM To: TRNSYS users mailing list at OneBuilding.org; f.lavoye at surya-consultants.com Subject: Re: [TRNSYS-users] TMY-3 Fred, There are actually a few issues here. First, both TMY2 and TMY3 are file formats. The files themselves are simply text files and can be opened and edited with notepad, Excel, etc. The definition of the format (what data appears in which column of the data file) is publicly available: for TMY2: http://rredc.nrel.gov/solar/pubs/tmy2/data.html for TMY3: http://www.nrel.gov/docs/fy08osti/43156.pdf Both the TMY2 and TMY3 formats contain fields for global illuminance. Meteonorm is able to save and export weather files in the TMY2 format. However, I do not know if it fills in the global illuminanace fields with data or if it just leaves those fields set with some default code to indicate that no data is available. If either a TMY2 or TMY3 file contains data in the global illuminance fields then TRNSYS Type15 will read and provide that data as output 44 (if you only have one surface on which Type15 is computing solar radiation). Kind regards, David On 3/29/2015 4:01 PM, fr?d?ry lavoye wrote: Dear TRnsys users, I would like to know how generate TMY-3 weather file ? I can't manage it with the version of meteonorm I have... I need Global illuminance Output for simulations and I think that only TMY-3 weather file permit it. Thanks in advance for your answer. Regards, Fred. _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From mcdowell at tess-inc.com Mon Mar 30 10:50:50 2015 From: mcdowell at tess-inc.com (mcdowell at tess-inc.com) Date: Mon, 30 Mar 2015 12:50:50 -0500 Subject: [TRNSYS-users] Heat exchanger UA value In-Reply-To: References: <5515CF81.3040502@tess-inc.com> Message-ID: <602b5a501fdf5bb3d2c977a16025a893@tess-inc.com> Mayank - Use the links at the bottom of the message. Regards, Tim --- Timothy P. McDowell Executive Vice President Thermal Energy System Specialists, LLC 22 N Carroll St, Suite 370 Madison, WI 53703 608-274-2577 On 2015-03-30 11:16, Mayank Khichar wrote: > How do I unsubscribe from this mailing list?? > > Please, help. > > Mayank > > On Sat, Mar 28, 2015 at 4:51 AM, Martin Berov wrote: > > Dear David, > > Thank you for the suggestion. I'll use Type 534 - coiled, but can you suggest me which are usually used values for the "geometry factor for natural convection" and "geometry exponent for natural convection". > > Best Regards > Martin > > On Fri, Mar 27, 2015 at 10:45 PM, David BRADLEY wrote: > > Martin, > I would highly recommend that if at all possible you use Type534 from the TESS Storage Tank library in place of Type60. Type534 has an internal heat exchanger model that is far more robust than the one built in to Type60. > Kind regards, > David > > On 3/27/2015 3:11 PM, Martin Berov wrote: > > Dear TRNSYS users, > > I'm trying to analyse the influence of the heat exchanger area on the solar fraction and collector efficiency. > > I'm using storage tank Type 60c with internal HX. Although I change the area and the length(keeping the outside diameter constant) I always get same results for the monthly solar fraction and efficiency - like there is no influence. > > What could be the reason for this? > > Best regards > Martin > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org [1] > > -- > *************************** > David BRADLEY > Principal > Thermal Energy Systems Specialists, LLC > 22 North Carroll Street - suite 370 > Madison, WI 53703 USA > > P:+1.608.274.2577 [2] > F:+1.608.278.1475 [3] > d.bradley at tess-inc.com > > http://www.tess-inc.com [4] > http://www.trnsys.com [5] _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org [1] _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org [1] Links: ------ [1] http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org [2] tel:%2B1.608.274.2577 [3] tel:%2B1.608.278.1475 [4] http://www.tess-inc.com [5] http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From Rasmus.Luthander at angstrom.uu.se Tue Mar 31 07:09:56 2015 From: Rasmus.Luthander at angstrom.uu.se (Rasmus Luthander) Date: Tue, 31 Mar 2015 14:09:56 +0000 Subject: [TRNSYS-users] Problem with Type 194 Message-ID: <361C04E77913DB4982A2B6DFAB1CE8F6B37265@COLUMBA03.user.uu.se> Hi all, I'm new to TRNSYS and want to model a system containing PV panels of Type 194. However, in EES only pre-filled values are shown, which can't be changed, when I try to add my own parameters. Existing modules in the list don't seem to have any parameters, only "???". I got an introduction to the program from an more experienced user who previously has had the same problem. A file named "dforrt.dll" had to be copied to the plugin folder for Type 194. However, the parameters still can't be change and the example modules don't have any values. I'm using Windows 8.1 whereas he has a Windows 7 computer. Does that matter, or do anyone know how to solve the problem? Thanks in advance! Best regards, Rasmus Luthander -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Tue Mar 31 07:21:50 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Tue, 31 Mar 2015 09:21:50 -0500 Subject: [TRNSYS-users] Problem with Type 194 In-Reply-To: <361C04E77913DB4982A2B6DFAB1CE8F6B37265@COLUMBA03.user.uu.se> References: <361C04E77913DB4982A2B6DFAB1CE8F6B37265@COLUMBA03.user.uu.se> Message-ID: <551AAD7E.2070904@tess-inc.com> Rasmus, Could you please send me the PV parameters that you are trying to enter in to the plugin? We are testing a new version of the plugin and I like to try your values. Kind regards, David On 3/31/2015 9:09 AM, Rasmus Luthander wrote: > > Hi all, > > I?m new to TRNSYS and want to model a system containing PV panels of > Type 194. However, in EES only pre-filled values are shown, which > can?t be changed, when I try to add my own parameters. Existing > modules in the list don?t seem to have any parameters, only ?????. > > I got an introduction to the program from an more experienced user who > previously has had the same problem. A file named ?dforrt.dll? had to > be copied to the plugin folder for Type 194. However, the parameters > still can?t be change and the example modules don?t have any values. > I?m using Windows 8.1 whereas he has a Windows 7 computer. Does that > matter, or do anyone know how to solve the problem? > > Thanks in advance! > > Best regards, > > Rasmus Luthander > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From s_wanone at yahoo.com Tue Mar 31 09:38:31 2015 From: s_wanone at yahoo.com (safone samsuddin) Date: Tue, 31 Mar 2015 16:38:31 +0000 (UTC) Subject: [TRNSYS-users] MATLAB R2013 Message-ID: <1952721169.1380338.1427819911700.JavaMail.yahoo@mail.yahoo.com> Dear All, Does anyone here ever experience connecting ?MATLAB R2013 ?with TRNSYS 17 via Type 155?? Thanks Safwan -------------- next part -------------- An HTML attachment was scrubbed... URL: From 21mome1bke at hft-stuttgart.de Tue Mar 31 06:38:58 2015 From: 21mome1bke at hft-stuttgart.de (Melanie Monecke) Date: Tue, 31 Mar 2015 15:38:58 +0200 (CEST) Subject: [TRNSYS-users] Information Type 941 Message-ID: Dear Sirs, Could you please send me a documentation with informations about Type 941. Thank you very much! Yours sincerely, Melanie Monecke KlimaEngineering Hochschule f?r Technik Schellingstra?e 24 70174 Stuttgart From martber88 at gmail.com Tue Mar 31 16:15:35 2015 From: martber88 at gmail.com (Martin Berov) Date: Wed, 1 Apr 2015 01:15:35 +0200 Subject: [TRNSYS-users] Problem position HX in Type 534 Message-ID: Dear TRNSYS users, I need clarification regarding Type 534 -coiled (storage tank): I modeled storage tank 1m3 with height of 2m divided in 5 nodes. It has one immersed coiled HX with tube diameter do/di = 0.0424/0.0372m and total tube length 32m i.e heat transfer area of 4,3 m2. HX crosssectional area 0,53 m2 and coil diameter 0,75 i.e. the HX height is 0.706 m. I had problems defining the position of the HX so at the end I defined two nodes where I put 3 for HX node 1 and again 3 for HX node 2 with fraction of HX lenght 0.5 for both nodes. So it's confusing me that the height of the HX is 0.706m and one node height is 0.4m so is this correct or am I doing some mistake? I noticed that if I change the value for the HX wall thermal conductivity for example from 42 W/mK to 420 W/mK I get only 1% difference in solar fraction...-is it possible? Thank you Kind regards Martin -------------- next part -------------- An HTML attachment was scrubbed... URL: From aalqubaisi at pi.ac.ae Sun Mar 1 02:09:37 2015 From: aalqubaisi at pi.ac.ae (Ayesha Mohammed Al Qubaisi) Date: Sun, 1 Mar 2015 10:09:37 +0000 Subject: [TRNSYS-users] Type 651 Message-ID: <2A54F18524F711459AEE678374BED4D10AB62672@SRV03003.PI.AC.AE> Dear TRNSYS user, I'm using type 651 AC connected to type 56 building. 1) I would like to control the temperature of the zone using type 108 between 24~19 C, but it doesnt work, any idea ? 2) Also, should i add another component as fan type 112 connected to them? Type 651 AC has a blower so why do i need to add an external blower to the system ? Thanks in advance, Aisha -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Mon Mar 2 08:17:07 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Mon, 02 Mar 2015 10:17:07 -0600 Subject: [TRNSYS-users] Capacitance in TRNBuild In-Reply-To: <54F07F58.9070502@web.de> References: <54E9C512.1090308@web.de> <54ECAC13.1070602@tess-inc.com> <54F07F58.9070502@web.de> Message-ID: <54F48D03.8030908@tess-inc.com> Ole, The conduction transfer function method (which takes into account the capacitance of the walls) is used for walls, ceilings, roofs, floors, etc. It is not used for the windows nor their frames. I don't think that the Type56 window model attributes any thermal capacitance to the windows or window frames. best, David On 2/27/2015 08:29, Ole Nienaber wrote: > David, > thanks for the advice. But can I take e.g. windows into account with > these models? Now I model my whole geometric zone with Google SketchUp > using the Trnsys3d plug-in. > Greets, > Ole > > Am 24.02.2015 um 17:51 schrieb David BRADLEY: >> Ole, >> To add to what Jean Marais said, by including the wall capacitance >> in the zone and making only resistive walls you are turning Type56 >> into something resembling a lumped capacitance model and are no >> longer taking advantage of there being any difference between the air >> temperature and the surface temperatures. If that is the kind of >> model that you want to use then there are some actual lumped >> capacitance building models either as a single zone model the >> standard library (Type88) or as a multizone model in the TESS Loads >> and Structures library (Types 759 and 660) >> best, >> David >> >> >> >> On 2/22/2015 06:01, Ole Nienaber wrote: >>> Dear all, >>> >>> I'm trying to model a building zone in TRNBuild. The store capacity >>> is specified by 90 Wh/(m?*K). Unfortunately there is no information >>> about the single store capacities (e.g. walls, furniture,...). Now >>> my idea was to just model the zone with massless walls and to add >>> the whole store capacity to the capacity in TRNBuild (normally the >>> wall capacity is not valued in this parameter). Normally I don't see >>> any problems regarding to this way of calculation, becauce I only >>> use the absolute value of the capacity. Do you see any problems in >>> doing this? >>> >>> Thanks and greets, >>> Ole >>> _______________________________________________ >>> TRNSYS-users mailing list >>> TRNSYS-users at lists.onebuilding.org >>> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org >> > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com From d.bradley at tess-inc.com Mon Mar 2 13:25:18 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Mon, 02 Mar 2015 15:25:18 -0600 Subject: [TRNSYS-users] Type 651 In-Reply-To: <2A54F18524F711459AEE678374BED4D10AB62672@SRV03003.PI.AC.AE> References: <2A54F18524F711459AEE678374BED4D10AB62672@SRV03003.PI.AC.AE> Message-ID: <54F4D53E.3090703@tess-inc.com> Aisha, without seeing your project, there isn't really any way of telling why the controls aren't working. You should send your project (*.tpf), the buiding file (*.b17) and any other files needed in order to run the project to your distributor for assistance. If you only have to cool your building then you can use the blower that is part of Type651 as the system fan. If you have a need to provide heating using a furnace or an electric coil then I would recommend that you set the Type651 fan power to zero and use a Type112 as the system fan. The system fan will run whenever there is a call for either heating or cooling. kind regards, David On 3/1/2015 04:09, Ayesha Mohammed Al Qubaisi wrote: > > Dear TRNSYS user, > > I?m using type 651 AC connected to type 56 building. > > 1) I would like to control the temperature of the zone using type 108 > between 24~19 C, but it doesnt work, any idea ? > > 2) Also, should i add another component as fan type 112 connected to > them? > > Type 651 AC has a blower so why do i need to add an external blower to > the system ? > > Thanks in advance, > > Aisha > > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From Hiller at Transsolar.com Mon Mar 2 23:29:40 2015 From: Hiller at Transsolar.com (Marion Hiller) Date: Tue, 3 Mar 2015 07:29:40 +0000 Subject: [TRNSYS-users] Capacitance in TRNBuild In-Reply-To: <54F48D03.8030908@tess-inc.com> References: <54E9C512.1090308@web.de> <54ECAC13.1070602@tess-inc.com> <54F07F58.9070502@web.de> <54F48D03.8030908@tess-inc.com> Message-ID: Ole, As david mentioned the Type 56 window doesn't account of any thermal capacity of glazing and frame. Marion -----Urspr?ngliche Nachricht----- Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von David BRADLEY Gesendet: Montag, 2. M?rz 2015 17:17 An: TRNSYS users mailing list at OneBuilding.org Betreff: Re: [TRNSYS-users] Capacitance in TRNBuild Ole, The conduction transfer function method (which takes into account the capacitance of the walls) is used for walls, ceilings, roofs, floors, etc. It is not used for the windows nor their frames. I don't think that the Type56 window model attributes any thermal capacitance to the windows or window frames. best, David On 2/27/2015 08:29, Ole Nienaber wrote: > David, > thanks for the advice. But can I take e.g. windows into account with > these models? Now I model my whole geometric zone with Google SketchUp > using the Trnsys3d plug-in. > Greets, > Ole > > Am 24.02.2015 um 17:51 schrieb David BRADLEY: >> Ole, >> To add to what Jean Marais said, by including the wall capacitance >> in the zone and making only resistive walls you are turning Type56 >> into something resembling a lumped capacitance model and are no >> longer taking advantage of there being any difference between the air >> temperature and the surface temperatures. If that is the kind of >> model that you want to use then there are some actual lumped >> capacitance building models either as a single zone model the >> standard library (Type88) or as a multizone model in the TESS Loads >> and Structures library (Types 759 and 660) best, David >> >> >> >> On 2/22/2015 06:01, Ole Nienaber wrote: >>> Dear all, >>> >>> I'm trying to model a building zone in TRNBuild. The store capacity >>> is specified by 90 Wh/(m?*K). Unfortunately there is no information >>> about the single store capacities (e.g. walls, furniture,...). Now >>> my idea was to just model the zone with massless walls and to add >>> the whole store capacity to the capacity in TRNBuild (normally the >>> wall capacity is not valued in this parameter). Normally I don't see >>> any problems regarding to this way of calculation, becauce I only >>> use the absolute value of the capacity. Do you see any problems in >>> doing this? >>> >>> Thanks and greets, >>> Ole >>> _______________________________________________ >>> TRNSYS-users mailing list >>> TRNSYS-users at lists.onebuilding.org >>> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.o >>> rg >> > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com _______________________________________________ TRNSYS-users mailing list TRNSYS-users at lists.onebuilding.org http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org From mastourihicham at gmail.com Tue Mar 3 04:19:55 2015 From: mastourihicham at gmail.com (Hicham MASTOURI) Date: Tue, 3 Mar 2015 12:19:55 +0000 Subject: [TRNSYS-users] Windows shading schedule Message-ID: Hi , Am trying to find a typical type for employing shading schedules (For winter and summer) for 1 year simulation, but the schedule cannot be set according to many configurations of opening/shading, it allows only for one configuration for the whole year round, is there any hint regarding this issue. For instance i want this schedule : from 8 a.m to 5 p.m shadings to be opened ( months : december to february) to be closed for the rest of the simulation. Thank you, Kindest Regards *Cadi Ayyad University of Marrakech - ????? ?????? ???? ?????* *Hicham MastouriDoctorant Sciences Physique et Ing?nierie - FSSM MoroccoIng?nieur d'?tat en ?lectronique - AUST United Arab Emirates+ 212 6 62 76 74 49* *???? ??????????? ?????? ?????????????? 40001 ??????Physics DepartmentFaculty of Sciences SemlaliaPO Box: 2390 Marrakech 40 001Morocco* -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.bradley at tess-inc.com Tue Mar 3 08:35:56 2015 From: d.bradley at tess-inc.com (David BRADLEY) Date: Tue, 03 Mar 2015 10:35:56 -0600 Subject: [TRNSYS-users] Windows shading schedule In-Reply-To: References: Message-ID: <54F5E2EC.2000803@tess-inc.com> Hicham, For more complex schedules, you need to define the value as an INPUT in TRNBuild (instead of as a SCHEDULE). You can then use any of the TRNSYS Types such as Type14 or the Types in the TESS Applications library in order to set the scheduled value. regards, David On 3/3/2015 06:19, Hicham MASTOURI wrote: > Hi , > Am trying to find a typical type for employing shading schedules (For > winter and summer) for 1 year simulation, but the schedule cannot be > set according to many configurations of opening/shading, it allows > only for one configuration for the whole year round, is there any hint > regarding this issue. > For instance i want this schedule : from 8 a.m to 5 p.m shadings to > be opened ( months : december to february) to be closed for the rest > of the simulation. > > Thank you, > Kindest Regards > > *Cadi Ayyad University of Marrakech - ????? ?????? ???? ?????* > > *Hicham Mastouri > Doctorant Sciences Physique et Ing?nierie - FSSM Morocco > Ing?nieur d'?tat en ?lectronique - AUST United Arab Emirates > + 212 6 62 76 74 49*** > > *???? ??????? > ???? ?????? ????????? > ????? 40001 ?????? > Physics Department > Faculty of Sciences Semlalia > PO Box: 2390 Marrakech 40 001 > Morocco* > > > _______________________________________________ > TRNSYS-users mailing list > TRNSYS-users at lists.onebuilding.org > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley at tess-inc.com http://www.tess-inc.com http://www.trnsys.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From s_wanone at yahoo.com Tue Mar 3 10:24:49 2015 From: s_wanone at yahoo.com (safone samsuddin) Date: Tue, 3 Mar 2015 18:24:49 +0000 (UTC) Subject: [TRNSYS-users] Type 917 Message-ID: <236621402.1470254.1425407089179.JavaMail.yahoo@mail.yahoo.com> Dear TRNSYS User I have tried to simulate the type TYPE 917 and 941 AWHP, but couldn't manage to heat up a Type 56 building as I connected to the outlet air temperature from the Heat Pump to TGround in Type 56.? However, It wouldn't heat up the Air temperature zone of the building. Does anyone here know how to control the exiting fluid temperature of the AWHP Type 917 or 941.? Thanks Saf -------------- next part -------------- An HTML attachment was scrubbed... URL: From Renee.Cools at b2ai.com Wed Mar 4 02:06:28 2015 From: Renee.Cools at b2ai.com (=?iso-8859-1?Q?Ren=E9e_Cools?=) Date: Wed, 4 Mar 2015 10:06:28 +0000 Subject: [TRNSYS-users] Windows shading - total radiation on a window Message-ID: Hi, I asked this question before, but no solution yet. Is there an output from Trnbuild for the real radiation on a window. So with the influence of building overhang but without the influence of a mobile solarscreen? I have building with a very large trapezium shaped overhang and below 6 windows. During the day, the shading is different on each window. Additionally there are mobile solar screens on each window. They should close if there is more than 150W/m? on the window. If you use the "automatic control" according to window type. There is no "correction" for the large overhang, or nearby buildings. If you use output 103 en 104 the shading of the mobile solar screen is added each time the screen is down, so they go up on the first timestep, down on the next, and then up again.. Output 931 gives you the same as "automatic control" How to control each mobile solar screen ? taking into account the large overhang? Met vriendelijke groeten | Cordialement | Kind regards Ren?e Cools Technical engineering - Industrial Environmental Engineer Industrial Environmental Engineer BURO II & ARCHI+I -------------- next part -------------- An HTML attachment was scrubbed... URL: From l.f.r.peeters at gmail.com Wed Mar 4 02:24:15 2015 From: l.f.r.peeters at gmail.com (leen peeters) Date: Wed, 4 Mar 2015 11:24:15 +0100 Subject: [TRNSYS-users] active layer Message-ID: Dear all, we are using the active layer model of EMPA, built in in type 56, to simulate a solar boiler of the type equal to floor heating. In our case we used the auto segmentation leading to 3 different segments of the active layer. With 66 kg/h at 1,055 specific weight, inlet temperatures below 25 DC gave a fluent simulation at 15 minutes timestep. However, once simulating with higher inlet temperatures warmer climatic zones (e.g. Casablanca) fail at around 3400 hours in the simulation. In this case, we get a specific message that the inlet mass flow rate for the third part of the segmented roof requires a minimum mass flow rate that is higher than the input one. Opening the TRNBUILD file, the minimum is around 12 kg/h. The message in the list file mentions a minimum of over 30. A smaller timestep did not change the error. Are we too close to the safety limits built in the EMPA model, or is there another thing we forgot to take into account? Thanks already! Leen -------------- next part -------------- An HTML attachment was scrubbed... URL: From Hiller at Transsolar.com Thu Mar 5 04:59:19 2015 From: Hiller at Transsolar.com (Marion Hiller) Date: Thu, 5 Mar 2015 12:59:19 +0000 Subject: [TRNSYS-users] active layer In-Reply-To: References: Message-ID: Dear Leen, The minimum mass flow rate is checked in order to assure the validity of the linear approximation of the e-function between inlet and outlet temperature. In the attached figure you see that the deviation between linear approach and the e-function is to large (Read line). If you split the tab into two segments in series the linear approach is used for each segment and it matches well the e-funtion (see the two green lines). A smaller time step doesn?t help for this problem, that?s correct. In general, the min. mass flow rate is checked in TRNbuild prior the simulation. The calculated min. mass flow rate during the simulation might differ from the one in TRNbuild, because Type56 differentiates between a laminar and turbulent flow, respectively. (TRNBuild doesn?t.) Without knowing the simulation files it is hard to tell what might go wrong with your simulation. It sounds strange to me that the last segment is causing the error as well as the large difference between 12 kg/h m? and 30 kg/h m?. If you can?t find anything, we may have a quick look at the inputs file.(Hotline at transsolar.com) Best, Marion Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von leen peeters Gesendet: Mittwoch, 4. M?rz 2015 11:24 An: trnsys-users at cae.wisc.edu Betreff: [TRNSYS-users] active layer Dear all, we are using the active layer model of EMPA, built in in type 56, to simulate a solar boiler of the type equal to floor heating. In our case we used the auto segmentation leading to 3 different segments of the active layer. With 66 kg/h at 1,055 specific weight, inlet temperatures below 25 DC gave a fluent simulation at 15 minutes timestep. However, once simulating with higher inlet temperatures warmer climatic zones (e.g. Casablanca) fail at around 3400 hours in the simulation. In this case, we get a specific message that the inlet mass flow rate for the third part of the segmented roof requires a minimum mass flow rate that is higher than the input one. Opening the TRNBUILD file, the minimum is around 12 kg/h. The message in the list file mentions a minimum of over 30. A smaller timestep did not change the error. Are we too close to the safety limits built in the EMPA model, or is there another thing we forgot to take into account? Thanks already! Leen -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: TAB_min_massflow.png Type: image/png Size: 11539 bytes Desc: TAB_min_massflow.png URL: From Hiller at Transsolar.com Thu Mar 5 05:12:18 2015 From: Hiller at Transsolar.com (Marion Hiller) Date: Thu, 5 Mar 2015 13:12:18 +0000 Subject: [TRNSYS-users] Windows shading - total radiation on a window In-Reply-To: References: Message-ID: Hi Renee, currently, there is no other solution than running the simulation twice: a) One time only the geometric shading b) One time the geometric shading and the movable shading. For the control movable shading the radiation on the windows of a) is used. You are not the only one requesting this way of control. My college had the same problem. Therefore, the next update will include another output including geometric external shading effects only. Marion Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von Ren?e Cools Gesendet: Mittwoch, 4. M?rz 2015 11:06 An: trnsys-users at lists.onebuilding.org Betreff: [TRNSYS-users] Windows shading - total radiation on a window Hi, I asked this question before, but no solution yet. Is there an output from Trnbuild for the real radiation on a window. So with the influence of building overhang but without the influence of a mobile solarscreen? I have building with a very large trapezium shaped overhang and below 6 windows. During the day, the shading is different on each window. Additionally there are mobile solar screens on each window. They should close if there is more than 150W/m? on the window. If you use the "automatic control" according to window type. There is no "correction" for the large overhang, or nearby buildings. If you use output 103 en 104 the shading of the mobile solar screen is added each time the screen is down, so they go up on the first timestep, down on the next, and then up again.. Output 931 gives you the same as "automatic control" How to control each mobile solar screen ? taking into account the large overhang? Met vriendelijke groeten | Cordialement | Kind regards Ren?e Cools Technical engineering - Industrial Environmental Engineer Industrial Environmental Engineer BURO II & ARCHI+I -------------- next part -------------- An HTML attachment was scrubbed... URL: From Renee.Cools at b2ai.com Thu Mar 5 23:33:51 2015 From: Renee.Cools at b2ai.com (=?iso-8859-1?Q?Ren=E9e_Cools?=) Date: Fri, 6 Mar 2015 07:33:51 +0000 Subject: [TRNSYS-users] Windows shading - total radiation on a window In-Reply-To: References: