[TRNSYS-users] Simulation step
王洋
wanghongyang1767 at gmail.com
Fri Oct 28 05:32:51 PDT 2011
Dear all,
For my last question, indeed the time step is a biggest question!
When I define the the Type 14h to enter the „schedule“ directly in the
Simulation Studio which is the same condition : every 2 hours (starting at
10 am) the windows are fully opened (OF=1) for 5 minutes.
The weirdest thing appears: the escaping hot air is unexpectedly 1348 kg!
It's much more than 466 kg I define a normal schedule in TRNBuild with the
same condition: every 2 hours (starting at 10 am) the windows are fully
opened (OF=1) for 5 minutes.
Which experts could explain that? Which result I should believe? Or are both
of them not correct?
Or how can I deal with it?
Many thanks in advance!
br
wang
** **
2011/10/28 <trnsys-users-request at cae.wisc.edu>
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>
> ---------- 已转发邮件 ----------
> From: 王洋 <wanghongyang1767 at gmail.com>
> To: Heinze <heinze at ingweber.de>, trnsys-users at cae.wisc.edu,
> hotline at transsolar.com
> Date: Fri, 28 Oct 2011 12:55:42 +0200
> Subject: Re: [TRNSYS-users] Equation
> 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：****
>>
>> Send TRNSYS-users mailing list submissions to
>> trnsys-users at cae.wisc.edu
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>> or, via email, send a message with subject or body 'help' to
>> trnsys-users-request at cae.wisc.edu
>>
>> You can reach the person managing the list at
>> trnsys-users-owner at cae.wisc.edu
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of TRNSYS-users digest..."
>>
>> 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****
>>
>> https://mailman.cae.wisc.edu/listinfo/trnsys-users****
>>
>>
>>
>> ---------- 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****
>>
>> https://mailman.cae.wisc.edu/listinfo/trnsys-users****
>>
>>
>>
>> ---------- 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
>> TRNSYS-users at cae.wisc.edu <https://mail.google.com/mail/?ui=2&view=js&name=main,tlist&ver=xoKGCa3S9Zo.zh_CN.&am=!tYHN8IrIlcE5hv0AQXCVwp6Uq2w5x9ZNEm3U96qcEuobDfBgIY3hxc9sFnoF5LSLvg#1334577e357d9ac1_>
>>
>> ****
>>
>> https://mailman.cae.wisc.edu/listinfo/trnsys-users****
>>
>> ------------------------------
>>
>> _______________________________________________****
>>
>> TRNSYS-users mailing list****
>>
>> TRNSYS-users at cae.wisc.edu****
>>
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>>
>>
>> _______________________________________________
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>> TRNSYS-users at cae.wisc.edu
>> https://mailman.cae.wisc.edu/listinfo/trnsys-users****
>>
>> ** **
>>
>
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