[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TRNSYS-users] Shading factors



Manfred,

 I believe that the requirement for convex zones only applies to using the detailed radiation mode to deal with the interior radiation exchange. In other words I think it applies only to the *.vfm file and not to the *.shm file since the *.shm file deals with shading on the outside of the building. Please someone correct me if I am wrong about that.

kind regards,

 David


On 08/11/2021 04:41, Manfred Schindler via TRNSYS-users wrote:

Hello everyone,

 

I use trnsys3D to import to TRNBuild and I have a few shading objects. In the existing model I just used shading factors from PHPP, only differencing between summer and winter. Now I want to have more detailed shading factors and want to use the shading matrix (shm) but as I read in the documentations I need convex zones for it. Or is it working with concave zones, if I just use the detailed radiation model for the beam radiation distribution (and for the diffuse radiation distribution and the longwave radiation exchange within a zone the standard models)? As far as I can see the geometry of a zone is indifferent for the shm-File – isn’t it?

 

If it really does not work like that, my idea was to build up the same 3D-Modell but with only fictitious concave zones, so I could get the shading factors in the shm-file. Is there any type I can use to read the shm-matrix into my simulation with the concave zones?

 

Big thanks in advance!

Best regards,

Manfred Schindler


_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@lists.onebuilding.org
http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
d.bradley@tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com