Re: [TRNSYS-users] GenOpt variations on Type56

["Jeff Thornton" <thornton@tess-inc.com>]

A few things come to mind:

1) Turn on the Overwrite Check and NAN Check commands using the appropriate control cards; they may catch a serious error that is causing the simulation to hang.

2) Make sure that all of your assign statements are fully described (full path names) as GenOpt will often write the input file into it's own directory structure and locally defined path names will fail (.\Data.dat for example).  As an alternative, move all external data files into the directory where Genopt is creating the input and BUI files.

Let us know if any of these options help.

Jeff

Jeff Thornton 
President - TESS, LLC 

2916 Marketplace Drive - Suite 104 
Madison WI 53719 USA 

Phone: 608-274-2577 
Fax: 608-278-1475 
E-mail: thornton@tess-inc.com 
Web: www.tess-inc.com

----- Original Message -----
From: "" <william.logie@solarenergy.ch>
Sent: Thu, November 13, 2008 3:44
Subject: [TRNSYS-users] GenOpt variations on Type56

Dear Trnsys Users,

 

I am introducing myself to the features of TRNSYS gradually, the most recent project with which requires some optimisation of parameters in a Type56 multi-zone building. I am using GenOpt to call a *.bui template (the *.dck remains the same and as such is not altered by GenOpt) to alter the parameters of an active slab heating layer; in particular, variations over the pipe spacing and thickness of the slab.

 

I have tried the example from Michaël Kummert (Using GenOpt with TRNSYS16 and Type56 - 2007-02-15) which works perfectly. However when I apply the method to my project, GenOpt parses the GenOptRun.dck to TRNExe.exe (in which my *.bui file is defined) but the simulation hangs in the first time step indefinitely. The last lines printed to the GenOptRun.lst file are following:

 

*** The TRNSYS components will be called in the following order:
      Unit #  109   Type #  109
      Unit #   69   Type #   69
      Unit #  331   Type #   33
      Unit #  200   Type #    2
      Unit #   15   Type #  201
      Unit #   56   Type #   56
      Unit #   28   Type #    2
      Unit #   27   Type #    2
      Unit #   23   Type #    3
      Unit #   21&nbs! p;  Type #   11
      Unit #   26   Type #  869
      Unit #   24   Type #    3
      Unit #   20   Type #    5
      Unit #   22   Type #   11
      Unit #   35   Type #   65
      Unit #   36   Type #   65
      Unit #   34   Type #   65
      Unit #   31   Type #   28
      Unit #   33   Type #   65 

 

Interestingly enough when I call the same GenOptRun.dck that GenOpt tries to parse to TRNExe from a command line directly (e.g. 'C:\Trnsys16_1\Exe\TRNExe.exe "C:\Trnsys16_1\MyProjects\project1\GenOptRun.dck" /n') the simulation runs without hanging.

 

Any ideas?

 

Thanks in advance,

---

William Logie
Forschung / Research
Institut für Solartechnik SPF: Adresse / Website
Hochschule für Technik Rapperswil HSR
Tel. +41 55 222 48 34
Fax +41 55 222 48 44

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