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

[David BRADLEY <d.bradley@tess-inc.com>]

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@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	T +49 (234) 32 – 26 390
Ruhr-Universitaet Bochum	F +49 (234) 32 – 14 163
Fakultaet Maschinenbau (Fak. MB)	s.schimpf@thermo.rub.de
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