[TRNSYS-users] problem with iterations??

[Marion Hiller]

Karol,

 

In general the notice has nothing to do with a frozen TRNEXE.exe,

it is just an information.

 

The message indicates that the internal controller for turning on the 

integrated heating/cooling has convergence problems and a deadband is
applied to promote convergence.

This may be the case at the moment of turning ON or OFF something.

After 6 internal iterations a deadband is added to promote convergence.

If the convergence isn’t reached after 12 iterations a warning is
written to the lst/log file.

 

Regards,

 

Marion

 

 

Dipl.-Ing. Marion Hiller 
TRANSSOLAR: KlimaEngineering - Technologien für energieeffizientes Bauen
und Nutzerkomfort in Gebäude 
Munich - New York - Stuttgart + 49.711.67976.0 

Transsolar Energietechnik GmbH, Curiestrasse 2, 70563 Stuttgart 
Amtsgericht Stuttgart - HRB 23347, Steuernummer 99073/00911, USt-IdNr.:
DE152272639

Geschäftsführer: Dipl.Ing. Matthias Schuler, Dipl.Ing. Thomas Auer,
Dipl.Phys. Stefan Holst, Prof. Dipl.-Ing. Bleicher 

 

 

  _____  

Von: Karol Bandurski [mailto:karol.bandurski at put.poznan.pl] 
Gesendet: Donnerstag, 27. September 2012 10:47
An: trnsys-users at cae.wisc.edu
Betreff: [TRNSYS-users] problem with iterations??

 

Dear All,

 

I try to simulate dwelling with natural ventilation. I set some
algorithm for window opening and ideal heating for colder part of year
for each zone with set temperature depending on time of day.

 

When I run my yearly simulation it stop in one moment and TRNEXE is
frozen… There is even no error! Then I can only turn off TRNEXE.

 

Only think what appear (many times) in .lst file is

 

Notice: More than 6 iterations for internal regulation HEATING/COOLING.

 

I will be grateful for any advice!

 

I enclose .lst file.

 

Regards,

 

------------------------------------------------

Karol Bandurski MSc.

Institute of Environmental Engineering

Poznan University of Technology

www.ee.put.poznan.pl

www.put.poznan.pl

 


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