[TRNSYS-users] Heat Recovery ventilation system

王洋 wanghongyang1767 at gmail.com
Fri Oct 19 01:54:02 PDT 2012


Dear all,

Could anyone please pass me some relative examples for Heat Recovery
ventilation system using a sensible heat exchanger model and a series of
equations and Type 33 psychrometrics models? Or please tell me where could
I find some relative examples?


Since I can not find any Examples from TRNSYS/Examples file for that. For a
beginner, it is too difficult if no examples.

Many thanks in advance!

Br.
wang

2012/10/15 王洋 <wanghongyang1767 at gmail.com>

>
>
>
>
> 2012/10/15 王洋 <wanghongyang1767 at gmail.com>
>
>> Dear Jeff,
>>
>>
>> Many thanks for your reply!
>>
>> You can use a sensible heat exchanger model and a series of equations and
>> Type 33 psychrometrics models - but this gets pretty tricky - especially
>> if condensation occurs.  Nothing is horribly difficult in modeling these
>> systems but using a model which accounts for all of the possibilities will
>> make it a lot easier.
>>
>> Could you please pass me some relative examples for Heat Recovery
>> ventilation system using a sensible heat exchanger model and a series of
>> equations and Type 33 psychrometrics models? Or please tell me where
>> could I find some relative examples?
>>
>> Since I can not find any Examples from TRNSYS/Examples file for that. For
>> a beginner, it is too difficult if no examples.
>>
>> Many thanks in advance!
>> Br.
>>
>> wang
>>
>>
>>
>> 2012/10/12 <trnsys-users-request at cae.wisc.edu>
>>
>>> Send TRNSYS-users mailing list submissions to
>>>         trnsys-users at 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 at cae.wisc.edu
>>>
>>> You can reach the person managing the list at
>>>         trnsys-users-owner at 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. Re: Heat Recovery ventilation system (Jeff Thornton)
>>>
>>>
>>> ---------- 已转发邮件 ----------
>>> From: Jeff Thornton <thornton at tess-inc.com>
>>> To: <trnsys-users at cae.wisc.edu>
>>> Cc:
>>> Date: Fri, 12 Oct 2012 12:08:55 -0500
>>>
>>> Subject: Re: [TRNSYS-users] Heat Recovery ventilation system
>>> **
>>>
>>> <Do you mean we must buy TESS HVAC Library for TRNSYS?
>>>
>>> Is there no other methods to model exhaust air/fresh
>>> air Heat Recovery Ventilation System in Simulation Studio? E.g. using
>>> Equation or other component/Type in Simulation studio?>
>>>
>>>
>>>
>>> You can use a sensible heat exchanger model and a series of equations
>>> and Type 33 psychrometrics models - but this gets pretty tricky -
>>> especially if condensation occurs.  Nothing is horribly difficult in
>>> modeling these systems but using a model which accounts for all of the
>>> possibilities will make it a lot easier.  Good luck with your study!
>>>
>>>
>>>
>>> Jeff
>>>
>>>
>>>
>>> ---
>>>
>>> Jeff Thornton
>>>
>>> *President - TESS LLC*
>>>
>>> *22 N. Carroll Street, Madison WI USA 53703*
>>>
>>> *Office: (608) 274-2577  Fax: (608) 278-1475*
>>>
>>> *www.tess-inc.com*
>>>
>>> *E-Mail: thornton at tess-inc.com*
>>>
>>>
>>>
>>> On 10/12/2012 4:13 am, 王洋 wrote:
>>>
>>>   Dear Jeff Thornton,
>>>
>>> Many thanks for your reply!
>>>
>>> Do you mean we must buy TESS HVAC Library for TRNSYS?
>>> Is there no other methods to model exhaust air/fresh
>>> air Heat Recovery Ventilation System in Simulation Studio? E.g. using Equation
>>> or other component/Type in Simulation studio?
>>>
>>> Many thanks in advance!
>>> Br.
>>>
>>> wang
>>>
>>>>
>>>> Today's Topics:
>>>>
>>>>    1. Re: Heat Recovery ventilation system (Jeff Thornton)
>>>>
>>>>
>>>> ---------- 已转发邮件 ----------
>>>> From: Jeff Thornton <thornton at tess-inc.com>
>>>> To: <trnsys-users at cae.wisc.edu>
>>>> Cc:
>>>> Date: Thu, 11 Oct 2012 12:09:33 -0500
>>>> Subject: Re: [TRNSYS-users] Heat Recovery ventilation system
>>>>
>>>> There are several heat recovery models in the TESS HVAC Library for
>>>> TRNSYS.  The general descriptions of these models may be downloaded from
>>>> www.TRNSYS.com by following the TESS Libraries link.
>>>>
>>>>
>>>>
>>>> *
>>>> *
>>>> *    1. Modifying connection line properties ? (Santeri Siren)
>>>>    2. Re: Modifying connection line properties ? (Angel Carrera)
>>>>    3. Re: Fwd: Converging error (??)
>>>>
>>>>
>>>> ---------- 已转发邮件 ----------
>>>> From: Santeri Siren <santeri.siren1 at gmail.com>
>>>> To: "trnsys käyttäjät" <trnsys-users at cae.wisc.edu>
>>>> Cc:
>>>> Date: Wed, 10 Oct 2012 12:46:29 +0300
>>>> Subject: [TRNSYS-users] Modifying connection line properties ?
>>>> Dear users,
>>>>
>>>> is there a way to modify the properties (e.g. change color or weight)
>>>> of multiple connection lines between components at the same time. It takes
>>>> a lot of time to change line properties one at a time.
>>>>
>>>> best regards,
>>>>
>>>> Santeri Siren
>>>>
>>>>
>>>> ---------- 已转发邮件 ----------
>>>> From: Angel Carrera <angel.carrera at aiguasol.coop>
>>>> To: Santeri Siren <santeri.siren1 at gmail.com>
>>>> Cc: "trnsys käyttäjät" <trnsys-users at cae.wisc.edu>
>>>> Date: Wed, 10 Oct 2012 12:08:48 +0200
>>>> Subject: Re: [TRNSYS-users] Modifying connection line properties ?
>>>>
>>>> Dear Santeri,
>>>>
>>>> right-click on a connection with the style you wish to copy and choose
>>>> and choose "copy style". Them, you can copy this to another line just
>>>> right-clicking on it and selecting "apply style"
>>>>
>>>> Angel
>>>>
>>>> *
>>>>
>>>> 2012/10/10 Santeri Siren <santeri.siren1 at gmail.com>
>>>>
>>>>> Dear users,
>>>>>
>>>>> is there a way to modify the properties (e.g. change color or weight)
>>>>> of multiple connection lines between components at the same time. It takes
>>>>> a lot of time to change line properties one at a time.
>>>>>
>>>>> best regards,
>>>>>
>>>>> Santeri Siren
>>>>>
>>>>> _______________________________________________
>>>>> TRNSYS-users mailing list
>>>>> TRNSYS-users at cae.wisc.edu
>>>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>>>
>>>>>  *
>>>>
>>>>
>>>> --
>>>> Àngel Carrera
>>>>
>>>> Consultor Senior
>>>> Àrea tècnica
>>>>
>>>> Sistemes Avançats d'Energia Solar Tèrmica SCCL
>>>> C/ Roger de Llúria, 29 3r 2a 08009 Barcelona
>>>> Mòbil: (+34) 663 27 66 80
>>>> Tel: (+34) 93 342 47 55 Ext:2015
>>>> Fax: (+34) 93 342 47 56
>>>>
>>>> angel.carrera at aiguasol.coop
>>>> http://www.aiguasol.coop
>>>>
>>>>
>>>> ---------- 已转发邮件 ----------
>>>> From: 王洋 <wanghongyang1767 at gmail.com>
>>>> To: hotline <hotline at transsolar.com>
>>>> Cc: trnsys-users <trnsys-users at cae.wisc.edu>
>>>> Date: Wed, 10 Oct 2012 13:37:23 +0200
>>>> Subject: Re: [TRNSYS-users] Fwd: Converging error
>>>> Dear Marion,
>>>>
>>>> Many thanks for your patient reply!
>>>>
>>>> 1) I use TRNSYS 16, there is no TSGRD in TYPE 56.
>>>> 2) The height over sea level of Default is 0 m I used.
>>>> 3) You are right. I tried to use *.tm2 weather data, this Error
>>>> disappeared! But my Userdefined weather data is TRN/TRY weather data.
>>>> Why does it result in aforementioned Errors (Converging error by my past
>>>> emails)?
>>>> If I must use our own TRN/TRY weather data, how to avoid this
>>>> Converging error?
>>>> 4) Yes, The data reader Type 9 is placed after the building now for my
>>>> simulation., Do you mean Type 9 should be placed before the Building
>>>> Type 56? Is Better?
>>>>
>>>> Many thanks in advance!
>>>>
>>>> Br.
>>>>
>>>> wang
>>>>
>>>> *
>>>> 2012/10/10 hotline <hotline at transsolar.com>
>>>>
>>>>>     Dear Wang,
>>>>>
>>>>>
>>>>>
>>>>> there are several issues within your simulation concerning the outside
>>>>> longwave exchange of external surfaces
>>>>>
>>>>>
>>>>>
>>>>> 1.)     You didn’t connect TSGRD such that it is set 0 =>  If you
>>>>> have no information set it Tamb
>>>>>
>>>>> 2.)     For Sky temperature calculation with Type 69, you forgot to
>>>>> enter the height above sea level.
>>>>>
>>>>> 3.)     You read the ambient temperature and the relative air
>>>>> humditiy from a userdefined file by type 9
>>>>> instead of using the data from the weather file.
>>>>> This file wasn’t attached, but it might be an error source especially
>>>>> when interpolating incorrect data.
>>>>> For testing, please use the ambient temperature and rel. humidity from
>>>>> the assigned weather file throughout your simulation.
>>>>> Please check your userdefined data and the outputs of Type 9 WITHOUT
>>>>> connecting them to TYPE 56.
>>>>>
>>>>> 4.)     In addition, please check the component order. The data
>>>>> reader Type 9 is placed after the building.
>>>>>
>>>>>
>>>>>
>>>>> Marion
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------
>>>>>
>>>>>
>>>>> *Von:* 王洋 [mailto:wanghongyang1767 at gmail.com]
>>>>> *Gesendet:* Montag, 8. Oktober 2012 15:31
>>>>> *An:* trnsys-users at cae.wisc.edu; hotline
>>>>> *Betreff:* Fwd: Converging error
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Dear Marion and TRNSYS Users,
>>>>>
>>>>> Thanks for your reply!
>>>>>
>>>>> I checked all you mentioned, I can't find any special/abnormal
>>>>> settings. Furthermore, it runs well when the time step is 1 hour. For other
>>>>> steps e.g. 0.1 h, 0.2 h or 0.5 h, it appears that ERROR.
>>>>>
>>>>> Please help me have a look at the attached project if you are free.
>>>>>
>>>>> Many thanks in advance!
>>>>>
>>>>> br.
>>>>>
>>>>> wang
>>>>>
>>>>> ---------- Forwarded message ----------
>>>>> From: *王洋* <wanghongyang1767 at gmail.com>
>>>>> Date: 2012/9/28
>>>>> Subject: Converging error
>>>>> To: trnsys-users at cae.wisc.edu, hotline at transsolar.com
>>>>>
>>>>>
>>>>>
>>>>> ---------- 已转发邮件 ----------
>>>>> From: "hotline" <hotline at transsolar.com>
>>>>> To: trnsys-users <trnsys-users at 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
>>>>>
>>>>> 2012/9/28 <trnsys-users-request at cae.wisc.edu>
>>>>>
>>>>> Send TRNSYS-users mailing list submissions to
>>>>>         trnsys-users at 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 at cae.wisc.edu
>>>>>
>>>>> You can reach the person managing the list at
>>>>>         trnsys-users-owner at 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. 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 at tess-inc.com>
>>>>> To: <trnsys-users at 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 at tess-inc.com.
>>>>>
>>>>>
>>>>>
>>>>> Best regards,
>>>>>
>>>>>
>>>>> Matt Duffy
>>>>>
>>>>>
>>>>>
>>>>> TRNSYS on Facebook <http://www.facebook.com/TRNSYS>
>>>>>
>>>>> 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 <http://www.ee.put.poznan.pl/>
>>>>>
>>>>> Poznan University of Technology
>>>>>
>>>>> www.ee.put.poznan.pl
>>>>>
>>>>> www.put.poznan.pl
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ---------- 已转发邮件 ----------
>>>>> From: "Marion Hiller" <hiller at transsolar.com>
>>>>> To: "karol.bandurski" <karol.bandurski at put.poznan.pl>
>>>>> Cc: trnsys-users <trnsys-users at 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.: 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 <http://www.ee.put.poznan.pl/>
>>>>>
>>>>> Poznan University of Technology
>>>>>
>>>>> www.ee.put.poznan.pl
>>>>>
>>>>> www.put.poznan.pl
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ---------- 已转发邮件 ----------
>>>>> From: "hotline" <hotline at transsolar.com>
>>>>> To: trnsys-users <trnsys-users at 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 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>
>>>>>
>>>>> Send TRNSYS-users mailing list submissions to
>>>>>         trnsys-users at 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 at cae.wisc.edu
>>>>>
>>>>> You can reach the person managing the list at
>>>>>         trnsys-users-owner at 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 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 <http://www.ee.put.poznan.pl/>
>>>>>
>>>>> Poznan University of Technology
>>>>>
>>>>> www.ee.put.poznan.pl
>>>>>
>>>>> www.put.poznan.pl
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> TRNSYS-users mailing list
>>>>> TRNSYS-users at cae.wisc.edu
>>>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> TRNSYS-users mailing list
>>>>> TRNSYS-users at cae.wisc.edu
>>>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>  *
>>>>
>>>> _______________________________________________
>>>> TRNSYS-users mailing list
>>>> TRNSYS-users at cae.wisc.edu
>>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>>
>>>> *
>>>>
>>>
>>> _______________________________________________
>>> TRNSYS-users mailing list
>>> TRNSYS-users at cae.wisc.edu
>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>
>>>
>>>
>>> _______________________________________________
>>> TRNSYS-users mailing list
>>> TRNSYS-users at cae.wisc.edu
>>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>>
>>>
>>
>
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