[TRNSYS-users] cold bridge

[Karol Bandurski]

Dear All,

 

I need a bit more explanation, 

 

What is the idea of cold bridge in TRNBuild?

 

If I choose colgbridge for the wall it is mean that there is (are) cold
bridge(s) in one (few) place in the wall, or that the whole wall is one cold
bridge?

 

Shoulld I draw coldbridge in Google SketchUp or it is possible to add it in
TRNBuild only?

 

Regards,

Karol

------------------------------------------------

Karol Bandurski MSc.

 <http://www.ee.put.poznan.pl/> Institute of Environmental Engineering

Poznan University of Technology

 <http://www.ee.put.poznan.pl/> www.ee.put.poznan.pl

www.put.poznan.pl <http://www.put.poznan.pl/> 

 

 

 

From: ITF - Adrien JEZEQUEL [mailto:a.jezequel at itf.biz] 
Sent: Wednesday, July 04, 2012 2:25 PM
To: trnsys-users at cae.wisc.edu
Subject: Re: [TRNSYS-users] cold bridge

 

Dear Karol,

You can't modify geometry in trnbuild if detailed radiation model are
selected, that's why coldbridges can't be modified.
You can integrate coldbridges in wall u-value definition :

*	Uvalue = (Uwall*Area + Coldbridge_1 x L_1 + Coldbridge_2 x L_2 + ...
+  Coldbridge_i x L_i)/Area 

For windows, you can do the same and include coldbridges in Uw value (modify
c-value)

Best regards

  _____  


 <http://www.itf.biz> www.itf.biz
www.itf.biz

Adrien JEZEQUEL
Simulations Thermiques Dynamiques


ITF

62, Rue du Bolliet
73230 St Alban Leysse
FRANCE


Phone :
Fax :
Mail:

+33(0) 479 750 029
+33(0) 479 852 122
a.jezequel at itf.biz ou aj at itf.biz

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Le 04/07/2012 11:34, Karol Bandurski a écrit :

Dear All,
 
Could somebody explain me how to model cold bridge effect?
 
Building, which I model, have balcony. So, I go to zone which is directly
connect with balcony, highlight  exterior wall where balcony hangs and what
data should I put?
 
There is resistance of connection wall-balcony or whole wall taking into
account this connection?
The same question is to other parameters?
 
After I accept cold bridge windows I cannot set cold bridge dimension
because it is blocked (gray)... Why?
 
Thank in advance for your time!!!
 
Regards,
 
------------------------------------------------
Karol Bandurski MSc.
Institute of Environmental Engineering
Poznan University of Technology
www.ee.put.poznan.pl
www.put.poznan.pl
 
 
 
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TRNSYS-users mailing list
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https://mailman.cae.wisc.edu/listinfo/trnsys-users
 

 

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