[TRNSYS-users] Type 604 - end of time step

[David BRADLEY]

Stefan,
   I think there may be a mismatch between your version of the TRNSYS 
kernel and your version of the TESS Libraries. In an earlier version of 
the kernel, there was an access function called 
getIsConvergenceReached(). However, this access function was set to 
.true. at the end of a time step whether or not convergence had been 
reached at that time step. So as to avoid confusion, we made a new 
access function called getIsEndOfTimeStep() that has exactly the same 
behavior but a (hopefully) more accurate and sensible name. If you are 
using a recent Type604 that calls getIsEndOfTimeStep() but an older 
kernel (in which that access function is not defined) then I can see why 
you are seeing this problem. I would recommend that you update to the 
17.01.0028 version of the kernel.
Kind regards,
  David


On 2/26/2014 13:15, S.Schimpf at thermo.ruhr-uni-bochum.de wrote:
> Dear TRNSYS users,
> I encountered a problem when using type 604 of the TESS 
> libraries. Debugging showed that for me the code section in line 62 
> which stores the final temperatures in the static array is never 
> reached as getIsEndOfTimeStep is always false. As a consequence the 
> pipes received the initial temperature of 20°C for every time step. 
> Instead of getIsEndOTimeStep I used getIsConvergenceReached. Is this 
> correct (the results seem to indicate this) or does another solution 
> exist? Has anybody else encountered the same problem in the past?
> Thank you in advance, regards
> Stefan
>
> *Dipl.-Ing. Stefan Schimpf*
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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
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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