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Today's Topics:
1. Re: question about a recurring error during simulation
(Matt Duffy)
2. Re: How to get kWh/m ?a (Matt Duffy)
3. Re: shading with tracking modes (Matt Duffy)
4. Re: How to get kWh/m?a (David BRADLEY)
5. Re: TRNSYS models for longwave radiation exchange withina
zone (simge andolsun)
6. Re: TRNSYS models for longwave radiation exchange withina
zone (Marion Hiller)
---------- Message transféré ----------
From: "Matt Duffy" <duffy@tess-inc.com>
To: trnsys-users@cae.wisc.edu, p.gelin@katene.fr
Date: Mon, 11 Apr 2011 15:38:15 -0500 (CDT)
Subject: Re: [TRNSYS-users] question about a recurring error during simulation
Hello Pauline,
Please check the convective heat transfer coefficient on the inside or outside of that window in the 'Window Typemanager'. I would recommend an internal calculation for the inside surface.
Best regards,
Matt Duffy----- Original Message -----
From: "Pauline GELIN" <p.gelin@katene.fr>
Sent: Fri, April 8, 2011 7:06
Subject: [TRNSYS-users] question about a recurring error during simulation
Dear all,
One of my simulations is interrupted due to this error :
“
Message: zone X surface Y pane temperature calculation is diverging at time 0.25000TDIF Nan
ITPANE:31 ITCALC:51
“
(this error is repeated for lot of my building zones created in the plugin TRNSYS3D and completed in TRNBuild)
In fact, during this simulation I just want to check the consistency of dif ferent times come into play in my real simulation (schedules in TRNBuild file, time of simulation by type 21, weather time for types 15-6 and 89e and finally planning imported in type 9).
Do you know what this error means and how can I fix it ?
Thanks a lot in advance.
Pauline Gelin,
Katene engineer, fluid design office.
_______________________________________________ TRNSYS-users mailing list TRNSYS-users@cae.wisc.edu https://mailman.cae.wisc.edu/listinfo/trnsys-users
---------- Message transféré ----------
From: "Matt Duffy" <duffy@tess-inc.com>
To: leohaeberlein@googlemail.com, trnsys-users@cae.wisc.edu
Date: Mon, 11 Apr 2011 15:40:18 -0500 (CDT)
Subject: Re: [TRNSYS-users] How to get kWh/m ²a
Hello Leo,
Yes, you may simply "print" your output with a Type25 printer component. It will print any output that you specify to a simply tab-delimited text file that you can open in Excel. Please view some of the examples for reference.
Best regards,
Matt Duffy----- Original Message -----
From: "Leo Häberlein" <leohaeberlein@googlemail.com>
Sent: Fri, April 8, 2011 7:45
Subject: [TRNSYS-users] How to get kWh/m²a
I know it might be an easy question, but i am pretty much a "rookie" when it comes to t! rnsys.
I just wanted to ask, if and how i can get the kWh/m²a output for my building in an excel sheet or editor file??
Thanks
Leo_______________________________________________ TRNSYS-users mailing list TRNSYS-users@cae.wisc.edu https://mailman.cae.wisc.edu/listinfo/trnsys-users
---------- Message transféré ----------
From: "Matt Duffy" <duffy@tess-inc.com>
To: "BRENT CHESTER RUMINSKI" <bcr5083@psu.edu>, trnsys-users@cae.wisc.edu
Date: Mon, 11 Apr 2011 16:00:37 -0500 (CDT)
Subject: Re: [TRNSYS-users] shading with tracking modes
Dear Brent,
Thank you for your emails to TESS and the TRNSYS-Users mailing list. First of all, if you're simulating PV, we're going to recommend that you use the Type551 shading device in the TESS Electrical (formerly Green Building) Library from the TESS Libraries 17.01. The existing Type551 could be modified to do a single axis (east-west axis) tracking without a whole lot of work; however, doing a 2-axis tracking would indeed be a lot of work. Since you are a TESS TRNSYS customer, you may email TESS Technical Support (techsupport@tess-inc.com) if you need a software update.
Best regards,
Matt Duffy----- Original Message -----
From: "BRENT CHESTER RUMINSKI" <bcr5083@psu.e! du>
Sent: Fri, April 8, 2011 10:04
Subject: [TRNSYS-users] shading with tracking modes
---------- Message transféré ----------
From: David BRADLEY <d.bradley@tess-inc.com>
To: "Leo Häberlein" <leohaeberlein@googlemail.com>
Date: Mon, 11 Apr 2011 16:16:13 -0500
Subject: Re: [TRNSYS-users] How to get kWh/m²a
Leo,
there is no direct output for energy density. I would recommend integrating the building energy use during your simulation then multiplying it by the building area afterwards in your Excel sheet.
Best,
David
On 4/8/2011 07:45, Leo Häberlein wrote:Hi Trnsys-Users,
I know it might be an easy question, but i am pretty much a "rookie" when it comes to trnsys.
I just wanted to ask, if and how i can get the kWh/m²a output for my building in an excel sheet or editor file??
Thanks
Leo
_______________________________________________ TRNSYS-users mailing list TRNSYS-users@cae.wisc.edu https://mailman.cae.wisc.edu/listinfo/trnsys-users
-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com
---------- Message transféré ----------
From: simge andolsun <simgeandolsun@gmail.com>
To: duffy@tess-inc.com
Date: Mon, 11 Apr 2011 17:53:50 -0500
Subject: Re: [TRNSYS-users] TRNSYS models for longwave radiation exchange withina zone
Dear Matt Duffy,
Thanks for recommending these resources. I have read them, but I am
still not clear what is the difference between the standard (starnet)
model and the simple (combined) method. In the TRNSYS 17 manual
section Section 5.4.1.6, there is no explanation for the simple
(combined) method (pg. 5-153). Could you please explain what is meant
by simple (combined) method? What is its difference from the standard
(starnet) model?
Thanks in advance,
Best Regards,
Simge Andolsun
On Wed, Apr 6, 2011 at 3:10 PM, Matt Duffy <duffy@tess-inc.com> wrote:
>
> Dear Simge,
>
> Section 5.4.1.6. of the documentation goes into detail about the long wave
> radiation exchange. There was also a paper at BS2009.
> http://www.ibpsa.org/proceedings/BS2009/BS09_1983_1988.pdf
>
>
> Best regards,
>
> Matt Duffy
>
> ----- Original Message -----
> From: "simge andolsun" <simgeandolsun@gmail.com>
> Sent: Mon, April 4, 2011 21:23
> Subject:[TRNSYS-users] TRNSYS models for longwave radiation exchange
> withina zone
>
>
> Dear TRNSYS users,
>
> I am trying to understand the differences between the three radiation
> models listed under "Longwave radiation exchange within a zone" in
> "Radiation Modes of Thermal Zone" feature of TRNBuild. These models
> are:
>
> 1) Standard model (starnet model)
> 2) Simple model (one node model with combined heat transfer coeff.)
> 3) Detailed model (based on view factors)
>
> The manuals do not refer to these radiation models using the exact
> names listed in TRNBuild; therefore I am feeling difficulty
> understanding which of the three models is actually being discussed.
> Could you please briefly explain the primary differences between the
> calculations of these radiation models? I would also appreciate it
> very much if you could direct me to the specific sections of the
> manual (or to the related papers/thesis) that I should read to learn
> more about each model.
>
> Thanks in advance,
> Best,
> Simge Andolsun
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users@cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>
>
>
> ----- End of original message -----
>
>
---------- Message transféré ----------
From: "Marion Hiller" <hiller@transsolar.com>
To: simgeandolsun <simgeandolsun@gmail.com>
Date: Tue, 12 Apr 2011 08:24:37 +0200
Subject: Re: [TRNSYS-users] TRNSYS models for longwave radiation exchange withina zone
Dear Simge,
perhaps the attached pdf helps understanding the difference.
Best 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
-----Ursprüngliche Nachricht-----
Von: simge andolsun [mailto:simgeandolsun@gmail.com]
Gesendet: Dienstag, 12. April 2011 00:54
An: duffy@tess-inc.com
Cc: trnsys-users@cae.wisc.edu
Betreff: Re: [TRNSYS-users] TRNSYS models for longwave radiation
exchange withina zone
Dear Matt Duffy,
Thanks for recommending these resources. I have read them, but I am
still not clear what is the difference between the standard (starnet)
model and the simple (combined) method. In the TRNSYS 17 manual
section Section 5.4.1.6, there is no explanation for the simple
(combined) method (pg. 5-153). Could you please explain what is meant
by simple (combined) method? What is its difference from the standard
(starnet) model?
Thanks in advance,
Best Regards,
Simge Andolsun
On Wed, Apr 6, 2011 at 3:10 PM, Matt Duffy <duffy@tess-inc.com> wrote:
>
> Dear Simge,
>
> Section 5.4.1.6. of the documentation goes into detail about the long
wave
> radiation exchange. There was also a paper at BS2009.
> http://www.ibpsa.org/proceedings/BS2009/BS09_1983_1988.pdf
>
>
> Best regards,
>
> Matt Duffy
>
> ----- Original Message -----
> From: "simge andolsun" <simgeandolsun@gmail.com>
> Sent: Mon, April 4, 2011 21:23
> Subject:[TRNSYS-users] TRNSYS models for longwave radiation exchange
> withina zone
>
>
> Dear TRNSYS users,
>
> I am trying to understand the differences between the three radiation
> models listed under "Longwave radiation exchange within a zone" in
> "Radiation Modes of Thermal Zone" feature of TRNBuild. These models
> are:
>
> 1) Standard model (starnet model)
> 2) Simple model (one node model with combined heat transfer coeff.)
> 3) Detailed model (based on view factors)
>
> The manuals do not refer to these radiation models using the exact
> names listed in TRNBuild; therefore I am feeling difficulty
> understanding which of the three models is actually being discussed.
> Could you please briefly explain the primary differences between the
> calculations of these radiation models? I would also appreciate it
> very much if you could direct me to the specific sections of the
> manual (or to the related papers/thesis) that I should read to learn
> more about each model.
>
> Thanks in advance,
> Best,
> Simge Andolsun
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users@cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>
>
>
> ----- End of original message -----
>
>
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