Re: [TRNSYS-users] TRNBUILD variable Cp?

[David Bradley <bradley@tess-inc.com>]

Dear Franck,
  As far as I know, it is not possible to have temperature dependent 
properties in Type56 wall layers. With the feature that allows you to 
change the window ID number during the course of a simulation, you might be 
able to simulate changes in window properties as a function of time 
however. I believe also that some groups have worked on phase change 
material components of one kind or another (we did some work on 
photovoltaics with phase change materials and I also saw a PCM tank model 
recently). However, none of those models plug in to the building as far as 
I know. The best approach might be to write a variable property wall 
component that connects to a Type56 wall through a boundary temperature 
approach such as is used for modeling slabs on grade.
Kind regards,
 David


At 08:02 1/4/2007, Franck Clottes wrote:
> Dear all,
>
> In TRNBUILD, is that possible to create a layer with variable parametres
> (capacity = f (T°,...) for exemple) ?
>
> Thanks in advance
>
> Franck CLOTTES
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