[TRNSYS-users] building with walls with big thermal mass

[Adrien JEZEQUEL - ITF]

Dear Stefano,

The wall thickness is limited to 1 meter in TRNBUILD.

You say condition does not fulfill the stability criteria, but have you 
try to increase your TIME BASE in TRNBUILD (TRNBUILD - Outputs - TIME BASE)?

I suggest you to increase you time base and check if results are 
physicaly correct. Time base must be a mutliple of your time step.

Best regards
------------------------------------------------------------------------
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www.itf.biz <http://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 21/03/2011 18:15, Avesani Stefano a écrit :
>
> Dear all,
>
> I need to simulate the behavior of a building with big thermal mass 
> (old church, circa 90 cm stone wall).
>
> Unfortunately, this condition does not fulfill the stability criteria.
>
> Which is the best way to simulate this case? Would it make sense to 
> create another adjacent thermal zone with no air mass capacitance and 
> with the external wall as half of the massive original wall?
>
> Thanks for helping and suggestions
>
> Stefano
>
>
> _______________________________________________
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> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
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