[TRNSYS-users] Converging error

[hotline]

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 at gmail.com] 
Gesendet: Donnerstag, 27. September 2012 11:49
An: trnsys-users at 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 at cae.wisc.edu>

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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 at gmail.com>
To: TRNSYS-users at cae.wisc.edu
Cc: 
Date: Thu, 27 Sep 2012 10:04:34 +0530
Subject: [TRNSYS-users] Doctoral Fellowships at TERI University, India

TERI 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.

http://teriuniversity.ac.in/index.php?option=com_content&view=article&id
=54

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 at 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 at put.poznan.pl>
To: <trnsys-users at 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

www.ee.put.poznan.pl

www.put.poznan.pl

 


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