Wang,
This problem may occur from incorrect ambient condition settings:
Please check the following inputs of Type 56
1- TAMB
2- RELHUMAMB
3- TSKY
4- TSGRD
In addition make sure that in the BUI file the surface
- outside emissitive is ≤ 1
- outside convective heat transfer coefficient ist set to reasonable value
If the error presits, we need the complete project to give further advice.
Marion
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Today's Topics:
1. Re: problem with iterations?? (Matt Duffy)
2. Re: problem with iterations?? (Marion Hiller)
3. Re: Converging error (hotline)
---------- 已转发邮件 ----------
From: Matt Duffy <duffy@tess-inc.com>
To: <trnsys-users@cae.wisc.edu>
Cc:
Date: Thu, 27 Sep 2012 12:04:24 -0500
Subject: Re: [TRNSYS-users] problem with iterations??
Karol,
I noticed from your listing (*.lst) file that your working directory is located on your computer's desktop directory. This is not recommended due to the potential issues with the Windows OS system and write privleges. I would first try changing your working directory to the ".\MyProjects" directory or in a folder right on the "C:" drive. I am not certain that this is the issue with the TRNEXE, but if the problem persists, please contact your distributor, techsupport@tess-inc.com.
Best regards,
Matt Duffy
On 2012-09-27 03:46, Karol Bandurski wrote:
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
---------- 已转发邮件 ----------
From: "Marion Hiller" <hiller@transsolar.com>
To: "karol.bandurski" <karol.bandurski@put.poznan.pl>
Cc: trnsys-users <trnsys-users@cae.wisc.edu>
Date: Fri, 28 Sep 2012 08:53:53 +0200
Subject: Re: [TRNSYS-users] problem with iterations??
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.: DE152272639Geschäftsführer: Dipl.Ing. Matthias Schuler, Dipl.Ing. Thomas Auer, Dipl.Phys. Stefan Holst, Prof. Dipl.-Ing. Bleicher
Von: Karol Bandurski [mailto:karol.bandurski@put.poznan.pl]
Gesendet: Donnerstag, 27. September 2012 10:47
An: trnsys-users@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
---------- 已转发邮件 ----------
From: "hotline" <hotline@transsolar.com>
To: trnsys-users <trnsys-users@cae.wisc.edu>
Cc:
Date: Fri, 28 Sep 2012 12:02:00 +0200
Subject: Re: [TRNSYS-users] Converging error
Wang,
This problem may occur from incorrect ambient condition settings:
Please check the following inputs of Type 56
1- TAMB
2- RELHUMAMB
3- TSKY
4- TSGRD
In addition make sure that in the BUI file the surface
- outside emissitive is ≤ 1
- outside convective heat transfer coefficient ist set to reasonable value
If the error presits, we need the complete project to give further advice.
Marion
Von: 王洋 [mailto:wanghongyang1767@gmail.com]
Gesendet: Donnerstag, 27. September 2012 11:49
An: trnsys-users@cae.wisc.edu
Betreff: [TRNSYS-users] Converging error
Dear all,
I met a converging error when I changed simulation time step 1 hour into 0.1 hour or 0.2 hour or 0.01 hour as follows:
*** Fatal Error at time : 3972.000000
Generated by Unit : 56
Generated by Type : 56
Message : outside temperature of 2(external) wall in zone 1at time 3972.00 not converged!
Please tell me some possible solutions for that if you know. The attached is its Listing File.
Many thanks in advance!
Br.
wang
2012/9/27 <trnsys-users-request@cae.wisc.edu>
Send TRNSYS-users mailing list submissions to
trnsys-users@cae.wisc.edu
To subscribe or unsubscribe via the World Wide Web, visit
https://mailman.cae.wisc.edu/listinfo/trnsys-users
or, via email, send a message with subject or body 'help' to
trnsys-users-request@cae.wisc.edu
You can reach the person managing the list at
trnsys-users-owner@cae.wisc.edu
When replying, please edit your Subject line so it is more specific
than "Re: Contents of TRNSYS-users digest..."
Today's Topics:
1. Doctoral Fellowships at TERI University, India (R.K. Singh)
2. problem with iterations?? (Karol Bandurski)
---------- 已转发邮件 ----------
From: "R.K. Singh" <singh.ramkishore@gmail.com>
To: TRNSYS-users@cae.wisc.edu
Cc:
Date: Thu, 27 Sep 2012 10:04:34 +0530
Subject: [TRNSYS-users] Doctoral Fellowships at TERI University, IndiaTERI University is currently inviting applications for Doctoral programmes in Bioresources/Biotechnology;Natural Resource Management, Energy and Environment and Regulatory and Policy studies for semester starting january 2013. A range of scholarship opportunities are also available for the students in specific areas, the details of which can be accessed through the following link.
The last date for application is October 31st, 2012. The details regarding fee, eligibility and other requirements can be accessed through http://teriuniversity.ac.in/index.php?option=com_program
For any further details please get in touch with Dr. Sapna A Narula, Associate Professor sapna.narula@teriuniversity.ac.in.
***********************************************
Dr. Ramkishore Singh
Department of Energy & Environment
TERI University
Tel: 91-11-26122222, Ext. 1302
Fax: 91-11-26122874
Web: www.teriuniversity.ac.in
***********************************************
---------- 已转发邮件 ----------
From: "Karol Bandurski" <karol.bandurski@put.poznan.pl>
To: <trnsys-users@cae.wisc.edu>
Cc:
Date: Thu, 27 Sep 2012 10:46:49 +0200
Subject: [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
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Attachment:
BuildingProject12.bui
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BuildingProject12.tpf
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