[TRNSYS-users] TRNSYS-users Digest, Vol 76, Issue 39

[WALID KADRI]

Thank you very much.

2011/4/12 <trnsys-users-request at cae.wisc.edu>

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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 at tess-inc.com>
> To: trnsys-users at cae.wisc.edu, p.gelin at 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 at 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 listTRNSYS-users at cae.wisc.eduhttps://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>
>
> ---------- Message transféré ----------
> From: "Matt Duffy" <duffy at tess-inc.com>
> To: leohaeberlein at googlemail.com, trnsys-users at 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 at googlemail.com>
> *Sent:* Fri, April 8, 2011 7:45
> *Subject:* [TRNSYS-users] How to get kWh/m²a
>
> Hi Trnsys-Users,
>
> 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 listTRNSYS-users at cae.wisc.eduhttps://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>
>
> ---------- Message transféré ----------
> From: "Matt Duffy" <duffy at tess-inc.com>
> To: "BRENT CHESTER RUMINSKI" <bcr5083 at psu.edu>, trnsys-users at 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 at tess-inc.com) if you need a software update.
>
> Best regards,
>
> Matt Duffy
>
>
> *----- Original Message -----*
> *From:* "BRENT CHESTER RUMINSKI" <bcr5083 at psu.e! du>
> *Sent:* Fri, April 8, 2011 10:04
> *Subject:* [TRNSYS-users] shading with tracking modes
>
> I need to set up a model to predict shading effects on a fixed tilt, the
> two single axis, and 2 axis tracking modes for a PV array.  I have the type
> 30a component set up for the fixed tilt.  However, there are no components
> for the other three tracking modes.  Is there a way to adjust type 30a? Or
> does anyone know of a new component that can predict shading on a PV array
> with the other three tracking modes?
> ------------------------------
>
> _______________________________________________
> TRNSYS-users mailing listTRNSYS-users at cae.wisc.eduhttps://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>
>
> ---------- Message transféré ----------
> From: David BRADLEY <d.bradley at tess-inc.com>
> To: "Leo Häberlein" <leohaeberlein at 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 listTRNSYS-users at cae.wisc.eduhttps://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:+1.608.278.1475d.bradley at tess-inc.com
> http://www.tess-inc.comhttp://www.trnsys.com
>
>
>
> ---------- Message transféré ----------
> From: simge andolsun <simgeandolsun at gmail.com>
> To: duffy at 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 at 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 at 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 at cae.wisc.edu
> > https://mailman.cae.wisc.edu/listinfo/trnsys-users
> >
> >
> >
> >
> > ----- End of original message -----
> >
> >
>
>
>
> ---------- Message transféré ----------
> From: "Marion Hiller" <hiller at transsolar.com>
> To: simgeandolsun <simgeandolsun at 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 at gmail.com]
> Gesendet: Dienstag, 12. April 2011 00:54
> An: duffy at tess-inc.com
> Cc: trnsys-users at 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 at 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 at 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 at cae.wisc.edu
> > https://mailman.cae.wisc.edu/listinfo/trnsys-users
> >
> >
> >
> >
> > ----- End of original message -----
> >
> >
> _______________________________________________
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> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>
>
>
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>
>
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