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Re: [TRNSYS-users] TRNBUILD variable Cp?
Franck,
Markus Koschenz and Beat Lehmann wrote a TRNSYS TYPE for Phase Change Materials that are embedded in the building construction. See:
http://dx.doi.org/10.1016/j.enbuild.2004.01.029
Best regards,
Michael
-----Original Message-----
From: trnsys-users-bounces@engr.wisc.edu [mailto:trnsys-users-bounces@engr.wisc.edu] On Behalf Of David Bradley
Sent: Thursday, January 04, 2007 2:50 PM
To: Franck Clottes; trnsys-users@engr.wisc.edu
Subject: Re: [TRNSYS-users] TRNBUILD variable Cp?
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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