[TRNSYS-users] Simulation Error

[hotline]

Dear Omar,

the automatic calculation of the convective heat transfer coefficient is only valid and it only works for the inner surface of a wall. This error message means that you've activated the automatic calculation on the outer surface, by setting the option "internal calculation" on the heat transfer coefficient "back" in the wall type manager, this is only allowed for surfaces adjacent to two thermal zones. Just switch it to user-defined and choose
a standard value e.g. 64 kJ/(hm²K) for external walls or 11 kJ/(hm²K) for internal walls.

Best

__________________________________________________________________________________________________

Jochen Lam
TRNSYS Software Team

Transsolar Energietechnik GmbH
Curiestraße 2
70563 Stuttgart
Fax:        +49 711 67976-11
Email:    jlam at transsolar.com<mailto:jlam at transsolar.com>
Web:      www.trnsys.de<http://www.trnsys.de/>

Von: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Im Auftrag von Omar Abu-Hamdeh
Gesendet: Montag, 4. August 2014 21:13
An: trnsys-users at cae.wisc.edu
Betreff: [TRNSYS-users] Simulation Error


Dear All,



When attempting to run my simulation, an error window appears and says that there are 2 errors in the deck file. Here are the errors:




*** Fatal Error at time   :         0.000000
    Generated by Unit     :    56
    Generated by Type     :    56
    Message               : Error in automatic heat transfer calculation for surface   2 or its adjacent surface!: Automatic heat transfer calculation is only allowed on surfaces within a zone. Please check building input file (.bui)!

*** Fatal Error at time   :         0.000000
    Generated by Unit     :    56
    Generated by Type     :    56
    Message               : Error in automatic heat transfer calculation for surface   2 or its adjacent surface!: Automatic heat transfer calculation is only allowed on surfaces within a zone. Please check building input file (.bui)!

*** Simulation stopped with errors
    Total Notices         :        17
    Total Warnings        :         0
    Total Fatal Errors    :         2



Any help would be appreciated.



Omar
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