[TRNSYS-users] Equation
王洋
wanghongyang1767 at gmail.com
Fri Oct 28 03:55:42 PDT 2011
Hi Mr. Heinze,
Thanks fou your quick reply!
I tried a normal schedule in TRNBuild. But the result is very strange. In
all 20 minutes or 45 minutes for open windows can escape the mass of hot air
unexpectedly less than I use ON/OFF controller which controls OF directly
for 18 mins. For 20 minutes or 45 minutes using schedule in TRNBuild, they
are only 466 kg and 750 kg, however, for 18 mins using ON/OFF control,
it's unexpectedly 1432 kg. You could see 45 mins is twice than 20 mins
using schedule in TRNBuild, the escaping hot air mass is also not twice
relationship!
So I want to design an EQUATION to control the Opening Factor of the window
(Input of TRNFlow) as 1:****
****
every 2 hours (starting at 10 am) the windows are fully opened (OF=1) for 5
minutes.
every 1 hour (starting at 9 am) the windows are fully opened (OF=1) for 5
minutes.****
Then have a look the result.
My simulation time step is 0.01 hour i.e. 3 mins. Whether the strange result
has the relationship with the simulation time step or not? Or Please give me
some advices for the strange result!
Many thanks in advance!
Br.
wang
2011/10/28 Heinze <heinze at ingweber.de>
> Hi Wang, ****
>
> ** **
>
> this should be possible with a normal schedule in TRNBuild. ****
>
> Or you can use the Type 14h to enter the „schedule“ directly in the
> Simulation Studio.****
>
> ** **
>
> best regards****
>
> ** **
>
> Sascha Heinze****
>
> ** **
>
> *Von:* 王洋 [mailto:wanghongyang1767 at gmail.com]
> *Gesendet:* Freitag, 28. Oktober 2011 11:21
> *An:* trnsys-users at cae.wisc.edu
> *Betreff:* [TRNSYS-users] Equation****
>
> ** **
>
> Dear all,****
>
> ****
>
> I want to design an EQUATION to control the Opening Factor of the
> window (Input of TRNFlow) as 1:****
>
> ****
>
> every 2 hours (starting at 10 am) the windows are fully opened (OF=1) for
> 5 minutes.
> every 1 hour (starting at 9 am) the windows are fully opened (OF=1) for 5
> minutes.****
>
> ****
>
> Many thanks in advance!****
>
> ****
>
> Br.****
>
> ****
>
> wang****
>
> 在 2011年10月27日 下午2:59， <trnsys-users-request at cae.wisc.edu>写道：****
>
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> Today's Topics:
>
> 1. Re: TRNFlow Cs of Large Opening , Simulink integrated with
> TRNSYS (??)
> 2. Re: weather files (Timothy McDowell)
> 3. Re: radiator_modelling (Matt Duffy)
> 4. Re: weather files (Matt Duffy)
>
>
> ---------- 已转发邮件 ----------
> From: 王洋 <wanghongyang1767 at gmail.com>
> To: trnsys-users at cae.wisc.edu, hotline at transsolar.com
> Date: Thu, 27 Oct 2011 14:11:24 +0200
> Subject: Re: [TRNSYS-users] TRNFlow Cs of Large Opening , Simulink
> integrated with TRNSYS****
>
> Dear all,****
>
> ****
>
> I have some questions about TRNFlow and Calling Matlab.****
>
> 1) For Closed Opening in TRNFlow: There is a flow coefficient Cs per m
> crack length, the default value is 0.0001 kg/s/m at 1 Pa. Why is it this
> value? How to get or calculate it? Since I don't know how many meters of
> the cracks are in the zone. I seeked from the TRNFlow manual but there is
> nothing about it.****
>
> ** **
>
> when I set Cs as 0 kg/s/m at 1 Pa, BUT I found there is still air flow
> escaping from the zone (there is only one zone in my project). Because I
> observed CO2 concentration is still decreasing all the time after closed all
> the openings. ****
>
> ** **
>
> If I want to simulate the infiltration rate (0.4 1/h) after closing all the
> openings, How could I set this Cs? What equations can I use? Many thanks in
> advance!****
>
> ****
>
> 2) For Calling Simulink: Which experts have some experience for calling
> Simulink? I designed a Controller using Simulink, I need connect the
> controller’s output and input with the TYPE 56’s input and output, and set a
> set-point value using Simulink. Who could tell me some general guides or
> pass me your examples about that. I will appreciate very much for your help!
> Since I also didn't find anything in Manual or others.****
>
> ****
>
> Or must I translate Simulink into M-file, then connect with TYPE 56?****
>
> ****
>
> ** **
>
> ****
>
> Many thanks in advance!****
>
> ****
>
> Br****
>
> ****
>
> ** **
>
> 2011/10/25 王洋 <wanghongyang1767 at gmail.com>****
>
> ** **
>
> wang****
>
>
>
>
> ---------- 已转发邮件 ----------
> From: "Timothy McDowell" <mcdowell at tess-inc.com>
> To: trnsys-users at cae.wisc.edu
> Date: Thu, 27 Oct 2011 07:52:12 -0500 (CDT)
> Subject: Re: [TRNSYS-users] weather files
> You can use the Type9 data reader to read-in your data and the Type16
> radiation processor to determine the radiation on different surfaces.
>
> Regards,
>
> Tim
>
>
>
>
> ----------------------------------
> Timothy McDowell
> Executive Vice President
> Thermal Energy System Specialists, LLC
> 22 N. Carroll St, Suite 370
> Madison, WI 53703
> Phone: 608-274-2577
> Fax: 608-278-1475
>
>
> ****
>
> *----- Original Message -----*
> *From:* "Richard Hall" <r.hall at steel-sci.com>
> *Sent:* Thu, October 27, 2011 6:56
> *Subject:* Re: [TRNSYS-users] weather files****
>
> There are a few ways to do it, I just use the Type 9 data reader and just
> copy the data from Excel into a text file. But this requires that you do the
> solar radiation conversion from horizontal to your surface outside TRNSYS (I
> have a custom Excel FORTRAN function and the advantage I find is that it
> make the simulation time independent).****
>
> ****
>
> Or you can use the Type 99 and there are examples of how to do that in:***
> *
>
> ****
>
> \Trnsys17\Examples\Weather Data****
>
> ****
>
> Rich****
>
> ****
>
> ****
>
> ****
> ------------------------------
>
> *From:* trnsys-users-bounces at cae.wisc.edu [trnsys-users-bo!
> unces at cae.wisc.edu] On Behalf Of Rana Mohsen [r.mohsen at live.com]
> *Sent:* 27 October 2011 12:22
> *To:* trnsys-users at cae.wisc.edu
> *Subject:* [TRNSYS-users] weather files****
>
> ****
>
> Dear All, i am a new user in Trnsys 17. i must do a simulation, and
> validate some data for buildings. and i need to create a weather file. so
> how can i do it. i have my own Data, radiation, ambient temperature, and
> relative humidity. do i must have a "meteonorm" program to create a weather
> data or there is any other solution. ****
>
> *B**est Regards*,****
>
> * **A**rchitect*| *R*ana Hanafy****
>
> ** **
>
> Tübingerstraße 93,****
>
> 70178 Stuttgart, ****
>
> Germany****
>
> 0049-176-59730029****
>
> ** **
>
> ** **
> ------------------------------
>
> This transmission is confidential and must not be used or disclosed by
> anyone other than the intended recipient. The Steel Construction Institute
> cannot accept any responsibility for any use or misuse of the transmission
> by anyone.
>
> The Steel Construction Institute is a company limited by guarantee
> registered in England and Wales under! registered number 1916698 and whose
> registered office is at Silwood P ark, Ascot, Berks, SL5 7QN, England. If
> you have received this message in error, you should not disclose its
> contents to anyone; please delete it and notify the sender immediately.***
> *
> ------------------------------
>
> _______________________________________________****
>
> TRNSYS-users mailing list****
>
> TRNSYS-users at cae.wisc.edu****
>
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>
>
> ---------- 已转发邮件 ----------
> From: "Matt Duffy" <duffy at tess-inc.com>
> To: "NOM KARAS" <nomkaras at gmail.com>, trnsys-users at cae.wisc.edu
> Date: Thu, 27 Oct 2011 07:58:12 -0500 (CDT)
> Subject: Re: [TRNSYS-users] radiator_modelling
> Dear Nomikos,
>
> First of all, if you have an older version of the TESS Libraries, it is not
> very expensive to upgrade. I would recommend doing that and obtaining the
> Type1231 radiator. If I did not have that option, I do not think I would
> pursue active layers. Rather, I would probably just using a pipe and specify
> the the loss coefficient, then couple that with Type56 via a GAIN input. The
> validity is questionable, but it might get you close.
>
> Regards,
>
> Matt Duffy
>
> ****
>
> *----- Original Message -----*
> *From:* "NOM KARAS" <nomkaras at gmail.com>
> *Sent:* Thu, October 27, 2011 5:47
> *Subject:* [TRNSYS-users] radiator_modelling****
>
> Dear Trnsys users,
>
> I want to modell a classic heating system with radiators (that use hot
> water, heated from a central boiler). I have read previous threads that talk
> about a component of transsolar (type 362 ) that simulates such a radiator
> and found that TESS has a similar component type-1231. Unfortunately I
> don't have these components (I have an older version of TESS library) and I
> wondered if i could simulate somehow the radiator with type-56 (trnbuild) by
> using an active layer. I know that active layers are traditionally used for
> internal floor heating, but I made this consideration :
>
> To add to my heating zone an external wall *with active layer* and *adiabatic
> conditions* on the surface looking to the enviroment ( active layers cant
> unfortunately be used in internal walls) that has wall area equal to the
> desired radiator (and by equal i mean the total ! surface of the radiator
> that takes part in the radiation-convection&nb sp; heat exchange).
>
> I would appreciate your opinion on this,
>
> with regards Nomikos.****
> ------------------------------
>
> _______________________________________________****
>
> TRNSYS-users mailing list****
>
> TRNSYS-users at cae.wisc.edu****
>
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>
>
> ---------- 已转发邮件 ----------
> From: "Matt Duffy" <duffy at tess-inc.com>
> To: trnsys-users at cae.wisc.edu
> Date: Thu, 27 Oct 2011 07:59:24 -0500 (CDT)
> Subject: Re: [TRNSYS-users] weather files
> There is also an example of Type9 with Type16 in that same directory
> ".\Examples\Weather Data"
>
> Regards,
>
> Matt
>
> ****
>
> *----- Original Message -----*
> *From:* "Timothy McDowell" <mcdowell at tess-inc.com>
> *Sent:* Thu, October 27, 2011 7:52
> *Subject:* Re: [TRNSYS-users] weather files****
>
> You can use the Type9 data reader to read-in your data and the Type16
> radiation processor to determine the radiation on different surfaces.
>
> Regards,
>
> Tim
>
>
>
>
> ----------------------------------
> Timothy McDowell
> Executive ! Vice President
> Thermal Energy System Specialists, LLC
> 22 N. Carroll St, Suite 370
> Madison, WI 53703
> Phone: 608-274-2577
> Fax: 608-278-1475
>
>
> ****
>
> *----- Original Message -----*
> *From:* "Richard Hall" <r.hall at steel-sci.com>
> *Sent:* Thu, October 27, 2011 6:56
> *Subject:* Re: [TRNSYS-users] weather files****
>
> There are a few ways to do it, I just use the Type 9 data reader and just
> copy the data from Excel into a text file. But this requires that you do the
> solar radiation conversion from horizontal to your surface outside TRNSYS (I
> have a custom Excel FORTRAN function and the advantage I find is that it
> make the simulation time independent).****
>
> ****
>
> Or you can use the Type 99 and there are examples of how to do that in:***
> *
>
> ****
>
> \Trnsys17\Examples\Weather Data****
>
> ****
>
> Rich****
>
> ****
>
> ****
>
> ****
> ------------------------------
>
> *From:* trnsys-users-bounces at cae.wisc.edu [trnsys-u! sers-bo!
> unces at cae.wisc.edu] On Behalf Of Rana Mohsen [r.mohsen at live.com]
> *Sent:* 27 October 2011 12:22
> *To:* trnsys-users at cae.wisc.edu
> *Subject:* [TRNSYS-users] weather files****
>
> ****
>
> Dear All, i am a new user in Trnsys 17. i must do a simulation, and
> validate some data for buildings. and i need to create a weather file. so
> how can i do it. i have my own Data, radiation, ambient temperature, and
> relative humidity. do i must have a "meteonorm" program to create a weather
> data or there is any other solution. ****
>
> *Best Regards*,****
>
> * **A**rchitect*| ! *R*ana Hanafy****
>
> ** **
>
> Tübingerstraße 93, ****
>
> 70178 Stuttgart, ****
>
> Germany****
>
> 0049-176-59730029****
>
> ** **
>
> ** **
> ------------------------------
>
> This transmission is confidential and must not be used or disclosed by
> anyone other than the intended recipient. The Steel Construction Institute
> cannot accept any responsibility for any use or misuse of the transmission
> by anyone.
>
> The Steel Construction Institute is a company limited by guarantee
> registered in England and Wales under! registered number 1916698 and whose
> registered office is at Silwood P ark, Ascot, Berks, SL5 7QN, England. If
> you have received this message in error, you should not disclose its conten!
> ts to anyone; please delete it and notify the sender immediately.****
> ------------------------------
>
> _______________________________________________
> TRNSYS-users mailing list
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>
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>
> ------------------------------
>
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