[TRNSYS-users] Shading groups

[David BRADLEY]

Mattia,
   I think you will have to be a little creative here. Shading devices 
in Trnsys3D are assumed to be opaque as you know so I don't think you 
can define the shading surface in there. You could use Type34, which 
models simple overhangs and/or wingwalls. That model also assumes an 
opaque shader but it gives outputs for various shading fractions and 
view factors. You may be able to use those and the unshaded radiation 
from your weather component to get an estimate of the radiation that 
comes through your not-quite-opaque device. Lastly, Type56 allows you to 
enter a shading factor for any given window. You may be able to treat 
your shaders in that manner.

   Unfortunately, there is not a direct way to treat semitransparent 
shaders unless you would care to modify Type34.
Kind regards,
  David


On 6/6/2012 10:11, MATTIA ANDREA RIO wrote:
> Hi!!! i have a little problem with my imported 3d model from trnsys 3d 
> plug-in for sketchup.
>
> I have posted a picture that show my 3d model in sketchup; so, as you 
> can see, all of the triangular surfaces (into red circle), are made in 
> perforated corten steel, and i need to give a shading coefficient to 
> their, otherwise the  program will do the simulations considering the 
> shading surfaces opaque; but actually they are not matt.
>
> if someone have any ideas about how I can do.....
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

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

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