[TRNSYS-users] Problems with Trnsys3d

[David BRADLEY]

Anne-Kathrin,
   For 1, I would suggest that you ignore the windows in the basement as 
far as Trnsys3D is concerned. My guess is that their impact on the house 
will be more significant as a source of energy conduction and less as a 
solar gain to the basement. Because of that, I would treat them as a 
small (opaque) wall instead of as a window. Once you get to TRNBuild, 
you can associate them with some thermal properties that account for the 
thermal insulation of the glass but doesn't bother with the light 
transmittance.

   For 2, I am not sure there is a specific tool. In TRNBuild, you 
should be able to tell what zone they are part of. I would then hide all 
the other zones in the Trnsys3D project. If the remaining zone isn't too 
complicated, you can always delete it and start over. You might also be 
able to look at the *.idf file itself (which is text) to determine the 
surface name (a bunch of letters and numbers) that have been associated 
with the surface.

Best,
  david


On 7/3/2012 04:20, Anne-Kathrin.Albrecht at ise.fraunhofer.de wrote:
> Hallo everybody,
>
> I have several problems with Trnsys3d:
>
> 1.        I am working on a building that has a cellar with windows. 
> When I convert the idf-file into a TRNBuild-file (b17 idf-file) the 
> cellar walls are shown with a wrong area (takes the net area = gross 
> area minus windows instead of the gross area) and the windows are 
> missing. Is it not possible to include windows in walls that have the 
> ground as a boundary? Of course the house has a light well, but I 
> thought I could solve the problem by just drawing the windows and 
> setting them to a high shading factor.
>
> 2.        Is it possible to list all the drown surfaces in a building? 
> I´ve always used the surface search so far but I have two lines (drown 
> by accident) that are recognized as walls with an area of 0.001 m² and 
> I don´t know where they are, so it´s like searching  for a needle in a 
> haystack...
>
> Best regards,
>
> Anne-Kathrin Albrecht
>
>
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> TRNSYS-users at cae.wisc.edu
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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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