[TRNSYS-users] Equation

在 2011年10月27日下午2:59， <trnsys-users-request@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@gmail.com>
To: trnsys-users@cae.wisc.edu, hotline@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@gmail.com>

wang

---------- 已转发邮件 ----------
From: "Timothy McDowell" <mcdowell@tess-inc.com>
To: trnsys-users@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@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@cae.wisc.edu [trnsys-users-bo! unces@cae.wisc.edu] On Behalf Of Rana Mohsen [r.mohsen@live.com]
Sent: 27 October 2011 12:22
To: trnsys-users@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,

Architect| Rana 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.
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---------- 已转发邮件 ----------
From: "Matt Duffy" <duffy@tess-inc.com>
To: "NOM KARAS" <nomkaras@gmail.com>, trnsys-users@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@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.
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---------- 已转发邮件 ----------
From: "Matt Duffy" <duffy@tess-inc.com>
To: trnsys-users@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@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@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@cae.wisc.edu [trnsys-u! sers-bo! unces@cae.wisc.edu] On Behalf Of Rana Mohsen [r.mohsen@live.com]
Sent: 27 October 2011 12:22
To: trnsys-users@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,

Architect| ! Rana 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@cae.wisc.edu

https://mailman.cae.wisc.edu/listinfo/trnsys-users
_______________________________________________
TRNSYS-users mailing list
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_______________________________________________
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