[TRNSYS-users] trnsys3d concave zones

David BRADLEY d.bradley at tess-inc.com
Wed Dec 18 10:13:53 PST 2013

   The requirement that a zone be convex is only important if you are 
going to use the "detailed models" of internal radiation distribution. 
If you plan to use the default radiation distribution (in which 
radiation is either distributed according to surface area or according 
to the values you set using the GEOSURF keyword) then you need not worry 
about the shape of the zone. I would recommend that you only use the 
detailed internal radiation distribution mode for "troublesome" zones 
such as atria and highly glazed zones. In this case those zones should 
be convex.
Kind regards,

On 12/18/2013 09:51, elena.bee at libero.it wrote:
> Hi everyone!
> I'm a beginner in trnsys and i'm trying to make my building model in 
> Sketchup with TRNSYS3d. The TRNSYS3d tutorial say that thermal zones 
> must be convex, not concave. But my building has many concave zones, 
> how can I model them?
> Thank you very much for your help
> Regards,
> Elena
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Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

d.bradley at tess-inc.com


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