[TRNSYS-users] 96360 hours problem ?

David Bradley bradley at tess-inc.com
Mon Aug 3 15:27:13 PDT 2009


Clement,
 Can you send the text of the error message that is being written to the 
*.log or *.lst file?
Kind regards,
 David


REBILLARD, Clement (Stagiaire CRPE) wrote:
>
> Dear users,
>
>  
>
> I am successfully running simulations (CSHPSS simulations) on TRNSys 
> but recently i tried to incrase the simulation time to more than 10 
> years (87600 hours). At 96360 hours, a parameter stops to get its 
> value and my simulation is false after that time.
>
>  
>
> I isolated the problem and it comes from the modelisation of the 
> demand : I am using « equations » to model the demand and the flow 
> rate of the demand (on the outside of the heat exchanger) is 
> calculated thanks to the Power and Temperature difference : Flow = 
> Power / Cp / Delta(T)
>
>  
>
> Moreover, if stating START=96000 and STOP=1752000, the same problem 
> occurs at 96360 hours.
>
>  
>
> Has anyone had the same problem and does anyone know how to solve it ?
>
> Many thanks,
>
>  
>
> Clement Rebillard
>
> Veolia Environment
>
>  
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