[TRNSYS-users] Active Layer - Problem

[David BRADLEY]

Florian,
  I have seen that behavior as well; what it comes down to is the time 
base that you have selected in TRNBuild. If the wall transfer function 
coefficients are computed based on 1-hour intervals then you are going 
to see some discrete behavior if your timestep gets too far away from 
your time base. It is best to have your time step and your time base 
match but that isn't practical. Try generating the wall coefficients 
with a 0.25 hour time base and see if that helps.
Best,
  David


On 5/4/2011 02:36, Stift Florian wrote:
>
> Dear TRNSYS-users,
>
> I am simulating a room with an active layer in the separating wall.
>
> I tried to change the simulation timestep to 1 min. to get more exact 
> results.
>
> What I realized is, that the output started to show discrete results 
> in an hour interval.
>
> My Question: Could it be that TRNSYS has a limitation in the active 
> layer system, to solve it in one hour timesteps only?
>
> Can I change this somehow?
>
> Thanks for your help,
>
> Florian
>
> *FLORIAN STIFT, DI(FH)*
>
> Energy Department
>
> Sustainable Building Technologies
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
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d.bradley at tess-inc.com

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