[TRNSYS-users] TRNSYS crashes with no error message, but a lot of warnings refering to the PSYCHROMETRICS routine

[Knut Erik Enerstvedt]

 David and C K Le,

Thanks for your advice regarding my problem. I have now managed to trace
the error to a specific component or group of components, and the
simulation runs without crashing when I turn them off. I still have to find
what is wrong with those components, but it's easier when you know where to
look.

Best regards
Knut Erik Enerstvedt
Gether AS

fre. 3. mai 2019 kl. 02:27 skrev C K Lee <a8304506 at graduate.hku.hk>:

> Dear Knut.
>
> My experience is that the most possible causes of so many warnings are
> due to inappropriate fluid mass flowrates and/or insufficient thermal
> capacitances in the fluid streams.  You may trace the problems in these
> directions.
>
> Best Regards
> C K Lee
> Research Fellow
> City University of Hong Kong
>
>
> On 2019-05-02 21:59, David BRADLEY via TRNSYS-users wrote:
> > Knut,
> >
> >   In migrating to 64-bit architecture we have run into some situations
> > where the 32-bit version managed to get through an iteration while the
> > 64-bit version doesn't. Can you please send me the project and all the
> > files needed in order to run it so that I can have a look where it is
> > getting hung up?
> >
> > thank you,
> >
> >  David
> >
> > On 05/02/2019 04:38, Knut Erik Enerstvedt via TRNSYS-users wrote:
> >
> >> Hello,
> >>
> >> When running a simulation, TRNEXE crashes after a while without
> >> displaying any error message. Usually it pops up a box saying there
> >> is an error, but now it just freezes with a "Program not responding"
> >> message in the top of the window. When I close the program, the log
> >> file window appears. It shows no errors, but a lot of warnings
> >> saying that "The referenced UNIT has called the PSYCHROMETRICS
> >> routine with conditions outside the intended range of the dew point
> >> temperature correlation. The correlation from the 1981 ASHRAE
> >> fundamentals handbook is for the temperature range of -60 C to 70
> >> C." These warnings refer to units of Type 670 and 995 (TESS heating
> >> and cooling coil). I have tried to increase the setting "number of
> >> warnings before error" as a work around, since I can't understand
> >> why these warnings appear. I also do not know if these warnings are
> >> the reason why TRNEXE crashes, since there is no error message
> >> saying that they are, but I have no other clues.
> >>
> >> I would appreciate if anyone has an idea why this happens. My TRNSYS
> >> version is 18.01.0000.
> >>
> >> Best regards
> >>
> >> Knut Erik Enerstvedt
> >>
> >> Gether AS
> >>
> >> _______________________________________________
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> >>
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> >> [1]
> >
> > --
> > ***************************
> > David BRADLEY
> > Principal
> > Thermal Energy Systems Specialists, LLC
> > 3 North Pinckney Street - suite 202
> > 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 [2]
> > http://www.trnsys.com [3]
> >
> >
> > Links:
> > ------
> > [1]
> > http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
> > [2] http://www.tess-inc.com
> > [3] http://www.trnsys.com
> >
> > _______________________________________________
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>
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