[TRNSYS-users] Strange errors from Type56

[David Bradley]

Chun Kwong,
 I think you might want to look back at your window data - as you can 
see from the warnings leading up to the one that you highlighted, Type56 
is not able to converge on a window pane temperature (it has calculated 
the pane temperature as "non a number" (NaN).) One thing you might try 
to do is to turn off any automatic heat transfer coefficient 
calculations on your windows. Usually, it is not a problem but for 
certain windows that have window pane temperatures that are sensitive, 
that heat transfer coefficient can change dramatically from one 
iteration to the next and cause problems converging on a pane temperature.
Kind regards,
 david


a8304506 at graduate.hku.hk wrote:
> Hello, Trnsys users.
>
> I got some strange errors from Type56 while performing a simulation (see
> attached picture).  Does anyone know how to fix them?  Your reply is
> appreciated.
>
> Best Regards
> LEE, Chun Kwong
> Research assistant
> Division of Building Science and Technology
> City University of Hong Kong
>
>
>
>   
>
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