[TRNSYS-users] timebase and timestep for thin wall

[Diego A. Arias]

Dear Claude,

I may want to try replacing the definition of the very thin walls from a 
normal wall to a massless wall. By doing this, you will enter the 
corresponding thermal resistance for your wall. Type56's manual 
indicates that a massless layer should be used in very thin layer where 
the thermal mass can be neglected.
Best regards,

Diego


douglas mvuama massamba wrote:
> Hello
>
> In our project we calculate heat demand in hothouse
> for growing bananas.
> We have projected this hothouse in TRNSYS 16 as cuboid
> with plastic walls (thickness 0.001m; qualities
> materials for polythene).
>
> However our program does not work. Error which appears
> is error(639: output conversion error.
>
> In the list, the message is “outside temperature of
> 2(external) walls in zone 1 at time not converged”. 
> The timestep is 0.01 hr (Simulation Studio)
> The timebase is 0.01 hr (Trnbuild)
>  
> Anyone can help me to solve this problem
>
> With regards
>
> Claude Mvuama
>
> Dpto. de Máquinas y Motores Térmicos 
> Escuela Técnica Superior de Ingeniería de Bilbao
> Universidad del País Vasco
> España
>
>
>
>
> 	
>
> 	
> 		
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-- 

Diego A. Arias
TRNSYS Coordinator
Solar Energy Laboratory
University of Wisconsin - Madison
1500 Engineering Drive
Madison, WI 53706