[TRNSYS-users] error in automatic heat transfer calculation for surface 28 or its adjacent surface

Marion Hiller hiller at transsolar.com
Mon May 7 02:15:58 PDT 2012


Michael,

 

I quickly checked the code. 

Unfortuantely, the error message doesn't show the surface ID, but the
"order" number 

of the surface. 28 means it's the 28th surface in the b17 file. It will
be changed to

the surface ID.

 

However, in your B17 you have a window OBERLICHT defined as followed

 

WINDOW OBERLICHT

 WINID=11004 : HINSIDE=VERTICAL : HOUTSIDE=VERTICAL : 

 

and in the airnode described it has the Category= EXTERNAL

Thus, the BACK surface is NOT a surface of an airnode (it is facing
ambient conditions)

and may cause error.

 

 

Best 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 

 

 

 

 

-----Ursprüngliche Nachricht-----
Von: Michael Döbele [mailto:michael.doebele at hochschule-bc.de] 
Gesendet: Montag, 30. April 2012 20:51
An: trnsys-users at engr.wisc.edu
Betreff: [TRNSYS-users] error in automatic heat transfer calculation for
surface 28 or its adjacent surface

 

Dear TRNSYS users,

 

I am trying to use a built file for a simulation but each time I am 

trying to run the simulation it I get following message:

"Error in automatic heat transfer calculation for surface 28 or its 

adjacent surface! automatic heat transfer calculation is only allowed on


surfaces within a zone. Please check building input file (bui)."

 

..and I checked the building input file but even if I delete surface 28 

I get the same message. I also excluded that the dck file might be 

wrong... My deck file works with other bui files properly..

 

I could really use some good advice here ! :)

-- 

Michael Döbele

michael.doebele at hochschule-bc.de

 


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