[TRNSYS-users] Active Layer

Adrien JEZEQUEL - ITF a.jezequel at itf.biz
Thu Jul 23 05:45:37 PDT 2009


Dear Arnaud,

if you use EXTERNAL category, ambient temperature will be considered on 
outside wall surface. /(You can also use BOUNDARY category with external 
temperature as input, but wall orientation won't be considered/).

If you want to put ground temperature as external wall temperature,  you 
may choose "BOUNDARY" in category wall, and define a ground temperature 
input (which is defined in Studio)

For information, Type 501 from TESS Library give a Soil Temperature Profile.

Best regards
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	Adrien JEZEQUEL
Simulations Thermiques Dynamiques
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A.Thome-08 at student.lboro.ac.uk a écrit :
> Good afternoon everyone,
>
> Within type 56, I have created an active layer which is the ground floor of
> the building I am modelling.
>
> When I define this active layer, in "category", I put "EXTERNAL". Is that
> mean that the software considere that the temperature on the outside
> surface of the layer is the outside ambiante temperature? In this case
> obviously it won't be right because it is not the outside ambiante
> temperature but the ground tempereature which should be defined.
>
> How should I do to model it right? Should I use the category "BOUNDARY"
> instead of "EXTERNAL"? In which case is it clever to use the BOUNDARY
> category?
>
>
> Thank you very much.
>
> Arnaud
>
>
>
>
>
> Arnaud.
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>   
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