Re: [TRNSYS-users] Errors of temperature divergence and convergence

Pauline,

this doesn’t look like a problem with a window. It’s rather an iteration problem were a unit gets input “bad” value

such that the simulation doesn’t converge.

Since Type 56 is involved I would start replacing one user input of Type 56 after the other by a constant value

and check if the simulation runs.

For setting an input value to a constant value simply disconnect your the inputs and define a “good” value as initial value.

Good luck,

Marion

Dipl.-Ing. Marion Hiller

Transsolar Energietechnik GmbH

Curiestraße 2

70563 Stuttgart
Telefon: +49 711 67976-0
http://www.trnsys.de

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Von: trnsys-users-bounces@cae.wisc.edu [mailto:trnsys-users-bounces@cae.wisc.edu] Im Auftrag von Pauline GELIN
Gesendet: Donnerstag, 17. April 2014 11:32
An: trnsys-users
Cc: Amélie MARILLER
Betreff: [TRNSYS-users] Errors of temperature divergence and convergence

Hi,

Following my mistakes difference of temperature (see previous mail, and although trying to change the type of glazing, values of convection, frame percentage...), I wanted to test the simulation without window: new errors were occurred, and the calculation appeared infinitely long (only 20 hours simulated on 8760 during 4 mins), with the following statement. These units correspond to the type 87 (unit 23 = TRNBUILD) and 93 (31/32/33 = Input value recall) as used in previous projects without any problem. I have absolutely no idea of solution to resolve these errors. Do you have any clues for me?

Cordialement,

Pauline GELIN

Ingénieur Conception environnementale

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De : Pauline GELIN
Envoyé : jeudi 17 avril 2014 10:06
À : 'trnsys-users'
Cc : Amélie MARILLER
Objet : Error of temperature divergence

Hi,

on my current project, I have a blocking problem that seems to come from windows (please find below the problem statement). But the windows used are identical to those I use on other projects without ever having this error.. Do you know where it can come from?

Thanks a lot for your help.

Best regards.

Pauline