[TRNSYS-users] Editing Surface Values in .b17 Building File

David BRADLEY d.bradley at tess-inc.com
Thu Aug 9 09:57:28 PDT 2018


Daniel,

  You are brave! I edit lots of things by hand in the *.b17 (and *.b18) 
file but I have never tried to touch the geometry! I think you'll be 
okay provided that you are not trying to generate a shading mask and 
providing that none of your zones use the detailed radiation models.

kind regards,

  David



On 08/08/2018 18:56, Weber Daniel via TRNSYS-users wrote:
> Dear TRNSYS users,
>
> I am modelling a multizone 3D building with Type 56 and tried my luck 
> with directly editing the .b17 building file. I have adjusted surface 
> areas of walls, windows and roofs as well as changed wall types from 
> external to adjacent with their corresponding surfaces.
>
> It works fine as the simulation runs smoothly, but I am wondering 
> about the last part of the building file where it says 
> "_EXTENSION_BuildingGeometry_START_". It seems that all vertex points 
> of each wall, window and roof are stored here. As I edited surface 
> areas of walls but not their vertex points in that file, the vertex 
> points resulting area isn't the same as the changed area of the walls.
>
> Is that somehow going to affect my simulation in any way? For what 
> part of the simulation are the vertex points necessary? Is it not 
> advised to edit the .b17 at all manually?
>
> All input is greatly appreciated.
>
> Best regards,
>
> Daniel Weber
>
>
> PS: Any input to my question about the topic "Surface Gain Inside - 
> Pane Temp Error" in the archive would be welcomed too, where I'm 
> struggling to implement a heat gain input to an inside surface.
>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at 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
F:+1.608.278.1475
d.bradley at tess-inc.com

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

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