[TRNSYS-users] questions about shading matrix file

[Marion Hiller]

Dear Pauline, 

 

In Trnsys3D you can define shader surfaces and heat transfer surfaces
like walls windows etc.

After finishing the drawing there are two ways to continue:

 

-          Import the IDf file directly into Studio by the 3D building
wizard.
This creates you a B17 file as well as studio project. A shading matix
can be created by TRNbuild only.
There you have make a right mouse click on Type 56 -> edit building.

-          You start TRNbuild and use the Import function. This creates
you a B17 file only

 

Shading matrices are created by TRNbuild only. For creating a shading
matrix you may check documentation

05-MultizoneBuilding.pdf section 5.2.7, 5.2.7.2 and 5.5.1

The matrix files don’t exist in the studio. They are assumed to be in
the same directory as B17 file and have a fixed name.

Type 56 uses the shading matrix automatically when it is there. Check
for a notice in the list file.

 

 

Concerning the capacity, do you use the latest TRNSYS 17.00.0019? This
should work fine.

 

V1….Vx means 1st, 2nd, ….Vertex ID

 

Regards,

 

Marion

 

Dipl.-Ing. Marion Hiller 
TRANSSOLAR: KlimaEngineering - Technologien für energieeffizientes Bauen
und Nutzerkomfort in Gebäude 
Munich - New York - Stuttgart + 49.711.67976.0 

Transsolar Energietechnik GmbH, Curiestrasse 2, 70563 Stuttgart 
Amtsgericht Stuttgart - HRB 23347, Steuernummer 99073/00911, USt-IdNr.:
DE152272639

Geschäftsführer: Dipl.Ing. Matthias Schuler, Dipl.Ing. Thomas Auer,
Dipl.Phys. Stefan Holst, Prof. Dipl.-Ing. Bleicher 

 

 

  _____  

Von: Pauline GELIN [mailto:p.gelin at katene.fr] 
Gesendet: Donnerstag, 7. April 2011 09:22
An: trnsys-users at cae.wisc.edu
Betreff: [TRNSYS-users] questions about shading matrix file

 

Dear all, 

 

I would like to know when and where the new shading matrix file is used
in TRNSYS simulation studio. 

I drew a building with a shading object thanks to the Sketchup plugin
TRnSYS3D. I imported it in TRNBuild and I could read information about
this shading object in the window “Geo-Info”.

But I don’t know what these parameters (from V1 to V4)mean and above all
where they are use. 

I read on the MultizoneBuilding manual that a .shm file was also
created. So I thought it was like a .dat file and should be linked in
the simulation studio but I didn’t find where. 

Is there anyone who knows when and where the shading datas are used
during the simulation?

 

I have also another little question, always about the IDF file import in
TRNBuild: volumes of zones are well imported but the linked capacitance
calculations are not done. Is there a problem from my file or is it
always like this? Do I have to multiply by 1.2 myself manually?

 

Thanks a lot in advance. 

 

Pauline Gelin

Katene Engineer, fluid design office. 

 

 

 


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