[TRNSYS-users] QHEAT & TYPE 46
Mariëlle Nuchelmans
M.Nuchelmans at chri.nl
Wed Dec 22 07:33:03 PST 2010
Dear Wang,
Heating Power is maximum heating power (kJ/h)
Qheat is heating energy needed.
So if the result is 12707 kJ it means it doesn’t use its maximum heating power (at least not all the time, if it would you would get as a result 96691.2 kJ) You can control this by eg setting the Tset to 50 degrees. Then you should get the maximum (if you got any losses)
Mariëlle
Van: 王洋 [mailto:wanghongyang1767 at gmail.com]
Verzonden: woensdag 22 december 2010 16:22
Aan: trnsys-users at cae.wisc.edu
Onderwerp: [TRNSYS-users] QHEAT & TYPE 46
Dear all.
I have some questions about QHEAT and TYPE 46 as follows:
To QHEAT: I set the indoor temperature as 20°C in heating type, the Heating Power limited is 4024.8 kJ/hr (1.118 kW), the initial indoor temperature is 20°C. I used the Integrator Type 46 to get the sum QHEAT of 24 hours: 12707.7 kJ. I.E. The working power is only 147 W. Please tell me what's meaning of limited Heating Power? Is it the MAX. Power or not? How does the QHEAT work and get the result of Heating Demand?
But I calculated by hand, the result is 96595.2 kJ. Why the difference is so great! How does the Integrator get the result? Or how to calculate the sum of QHEAT in 24 hours by hand? whether my result is wrong?
To TYPE 46: How to set the Parameter of it: Printing & integrating interval? I want to get the sum of One Hour and 24 Hours etc.
Many thanks!
BR.
wang
2010/12/22 王洋 <wanghongyang1767 at gmail.com<mailto:wanghongyang1767 at gmail.com>>
Dear all.
I have some questions about QHEAT and TYPE 46 as follows:
To QHEAT: I set the indoor temperature as 20°C in heating type, the Heating Power limited is 4024.8 kJ/hr (1.118 kW), the initial indoor temperature is 20°C. I used the Integrator Type 46 to get the sum QHEAT of 24 hours: 12707.7 kJ. I.E. The working power is only 147 W. Please tell me what's meaning of limited Heating Power? Is it the MAX. Power or not? How does the QHEAT work and get the result of Heating Demand?
But I calculated by hand, the result is 96595.2 kJ. Why the difference is so great! How does the Integrator get the result? Or how to calculate the sum of QHEAT in 24 hours by hand? whether my result is wrong?
To TYPE 46: How to set the Parameter of it: Printing & integrating interval? I want to get the sum of One Hour and 24 Hours etc.
Many thanks!
BR.
wang
2010/12/21 王洋 <wanghongyang1767 at gmail.com<mailto:wanghongyang1767 at gmail.com>>
Dear all,
I have some questions about QHEAT and TYPE 46 as follows:
To QHEAT: I set the indoor temperature as 20°C in heating type, the Heating Power limited is 4024.8 kJ/hr (1.118 kW), the initial indoor temperature is 20°C. I used the Integrator Type 46 to get the sum QHEAT of 24 hours: 1270.77 kJ. But I calculated by hand, the result is 96595.2 kJ. Why the difference is so great! How does the Integrator get the result? Or how to calculate the sum of QHEAT in 24 hours by hand? whether my result is wrong?
To TYPE 46: How to set the Parameter of it: Printing & integrating interval? I want to get the sum of One Hour and 24 Hours etc.
Many thanks!
Br.
wang
在 2010年12月20日 下午4:54， <trnsys-users-request at cae.wisc.edu<mailto:trnsys-users-request at cae.wisc.edu>>写道：
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Today's Topics:
1. Re: error when opening sketchup (hotline)
2. Type 40 Micro-Processor (Felix Martin Beutefuehr, BLV-TGE)
3. Re: Strange error when using the equation proforma
(a8304506 at graduate.hku.hk<mailto:a8304506 at graduate.hku.hk>)
4. Re: Type 40 Micro-Processor (Arno Dentel)
---------- 已转发邮件 ----------
From: "hotline" <hotline at transsolar.com<mailto:hotline at transsolar.com>>
To: "A.Marston" <A.Marston at eb-engineers.com<mailto:A.Marston at eb-engineers.com>>, trnsys-users <trnsys-users at cae.wisc.edu<mailto:trnsys-users at cae.wisc.edu>>
Date: Mon, 20 Dec 2010 12:00:28 +0100
Subject: Re: [TRNSYS-users] error when opening sketchup
Hi,
that's a known problem in the RESTORE_STATE function that won't affect the functions of Trnsys3d so just ignore this message.
In the next version this function that causes the message will be turned off.
Christian
TRANSSOLAR Software Team
hotline at transsolar.com<mailto:hotline at transsolar.com>
www.trnsys.de<http://www.trnsys.de/>
Transsolar KlimaEngineering - Technologien für energieeffizientes Bauen und Nutzerkomfort in Gebäuden
Transsolar Energietechnik GmbH, Curiestrasse 2, 70563 Stuttgart / Amtsgericht Stuttgart - HRB 23347 / UsSt.-Id: DE152272639
Geschäftsführer: Dipl.Ing. Matthias Schuler, Dipl.Ing. Thomas Auer, Dipl.Phys. Stefan Holst, Prof. Volkmar Bleicher
________________________________
Von: Annie Marston [mailto:A.Marston at eb-engineers.com<mailto:A.Marston at eb-engineers.com>]
Gesendet: Donnerstag, 16. Dezember 2010 15:31
An: trnsys-users at cae.wisc.edu<mailto:trnsys-users at cae.wisc.edu>
Betreff: [TRNSYS-users] error when opening sketchup
Hi,
I am using the TRNSYS 3d plugin for SketchUp V7. I have v8 but the plugin doesn’t seem to attach to v8 (is this correct? Is there a plugin for v8). Whenever I open sketch up I get the following error:
Sorry... the plugin has encountered an error. This error may cause unpredictable behavior in the plugin continue this session with caution! It would probably be a good idea to exit SketchUp and start again. (unfortunately this happens everytime I open sketchup)
For help please contact...
Error:
NameError
Wrong constant name jectinfoInterface
Backtrace:
C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Trnsys3d/lib/DialogManager.rb:31:in `const_get'
C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Trnsys3d/lib/DialogManager.rb:31:in `restore_state'
C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Trnsys3d/lib/DialogManager.rb:31:in `initialize'
C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Trnsys3d/lib/AsynchProc.rb:13:in `call'
My version of the plugin is 1.0.5.362
Can you help
Thanks
Annie
Dr. A. Marston, Ph.D. LEED® AP
Building Performance Analyst
Ebert & Baumann Consulting Engineers, Inc.
An Enterprise of the Ebert-Consulting Group
734 15th Street, NW
Suite 1000
Washington, D.C. 20005, USA
Tel +1.202.608.1334
Fax +1.202.544.1434
a.marston at eb-engineers.com<mailto:a.marston at eb-engineers.com>
---------- 已转发邮件 ----------
From: "Felix Martin Beutefuehr, BLV-TGE" <beutefuf at fh-trier.de<mailto:beutefuf at fh-trier.de>>
To: trnsys-users at engr.wisc.edu<mailto:trnsys-users at engr.wisc.edu>
Date: Mon, 20 Dec 2010 11:47:19 +0100
Subject: [TRNSYS-users] Type 40 Micro-Processor
Hello everybody,
I am trying to set up a solar system including a heatpump. For controlling
reasons I am planning to implement Type 40 Microprocessor.
Unfortunately I am not familiar with this type and I do not really have a clue
how to work with this component. Does anyone have a good discription of that
type beside the "Mathematical Reference" where I can find further information?
I am very thankful for any kind of help concerning Type 40 that gives me a
chance to understand how to work with this Microprocessor.
Yours sincerely,
Felix
--
http://webmail.fh-trier.de<http://webmail.fh-trier.de/>
---------- 已转发邮件 ----------
From: a8304506 at graduate.hku.hk<mailto:a8304506 at graduate.hku.hk>
To: David BRADLEY <d.bradley at tess-inc.com<mailto:d.bradley at tess-inc.com>>
Date: Mon, 20 Dec 2010 22:12:26 +0800
Subject: Re: [TRNSYS-users] Strange error when using the equation proforma
Hello, David.
Thank you for your reply, but do you mean that the simulation does not start at
the first component as indicated in the input file? Moreover, does the error
only occur for the wrong equations within the same equation proforma?
Best Regards
LEE, Chun Kwong
City University of Hong Kong
Quoting David BRADLEY <d.bradley at tess-inc.com<mailto:d.bradley at tess-inc.com>>:
> Chun Kwong,
> You are correct in your understanding of how TRNSYS iterates to solve.
> However, it has to have somewhere to start so TRNSYS performs a check on
> all the equations before starting the simulation to make sure that it
> can solve them. If you wrote a set of equations that said:
>
> EQUATIONS 2
> A = B
> B = A
>
> there would be no way that TRNSYS could ever solve because it would have
> nowhere to begin the iteration. My guess is that your T_CHWS and T_CHWR
> equations are too interdependent and therefore can't be resolved.
> Best,
> david
>
>
> On 12/13/2010 20:38, a8304506 at graduate.hku.hk<mailto:a8304506 at graduate.hku.hk> wrote:
> > Hello, everyone.
> >
> > I am trying to simulate a chiller plant with primary and secondary chilled
> water
> > pump systems. I use to equation proforma to calculate the chilled water
> flow
> > and temperature at the supply and return header. However, I get the
> following
> > error messages:
> >
> > *** Fatal Error at time : 0.000000
> > Generated by Unit : Not applicable or not available
> > Generated by Type : Not applicable or not available
> > TRNSYS Message 420 : The following variable defined in an EQUATIONs
> or
> > CONSTANTs card could not be solved as this variable depends on either an
> > undefined EQUATION or CONSTANT name or depends on another EQUATION or
> CONSTANT
> > that cannot be solved. For example A=B and B=A would trigger this error
> > Reported information : T_CHWS
> >
> >
> > *** Fatal Error at time : 0.000000
> > Generated by Unit : Not applicable or not available
> > Generated by Type : Not applicable or not available
> > TRNSYS Message 420 : The following variable defined in an EQUATIONs
> or
> > CONSTANTs card could not be solved as this variable depends on either an
> > undefined EQUATION or CONSTANT name or depends on another EQUATION or
> CONSTANT
> > that cannot be solved. For example A=B and B=A would trigger this error
> > Reported information : T_CHWR
> >
> > I am a little bit confused. My understanding is that Trnsys performs the
> > calculation in the equation proforma based on the input and the sequence of
> the
> >
> > equations as typed in the proforma, and the system performance at each time
> step
> > is determined component by component which follow the order as indicated in
> the
> > input file. Hence, should there be any improper formulation, the
> consequence
> > should generally be non-convergence. Is my interpretation wrong, and how
> can I
> > solve the problem? Please advise. Thank you!
> >
> > Best Regards
> > LEE, Chun Kwong
> > City University of Hong Knog
> >
> >
> >
> >
> > _______________________________________________
> > TRNSYS-users mailing list
> > TRNSYS-users at cae.wisc.edu<mailto:TRNSYS-users at cae.wisc.edu>
> > https://www-old.cae.wisc.edu/mailman/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 at tess-inc.com<mailto:d.bradley at tess-inc.com>
>
> http://www.tess-inc.com<http://www.tess-inc.com/>
> http://www.trnsys.com<http://www.trnsys.com/>
>
>
---------- 已转发邮件 ----------
From: "Arno Dentel" <Arno.Dentel at ohm-hochschule.de<mailto:Arno.Dentel at ohm-hochschule.de>>
To: "'Felix Martin Beutefuehr, BLV-TGE'" <beutefuf at fh-trier.de<mailto:beutefuf at fh-trier.de>>, <trnsys-users at engr.wisc.edu<mailto:trnsys-users at engr.wisc.edu>>
Date: Mon, 20 Dec 2010 13:55:01 +0100
Subject: Re: [TRNSYS-users] Type 40 Micro-Processor
Dear Felix,
I have used Type 40 to control a simple heatpumping application.
Have a look in table 1 of my documentation, perhaps it helps to understand
the parameterization
of Type 40. In the studio file (version 16) you can see Type 40 as heatpump
controller.
Best regards,
Arno
-------------------------------------
Arno Dentel - MEng, Dipl.-Ing.(FH)
Forschungsgebiet Gebäudesysteme
ieg - Institut für Energie und Gebäude
Georg-Simon-Ohm-Hochschule
für angewandte Wissenschaften -
Fachhochschule Nürnberg
Keßlerplatz 12
90489 Nürnberg
Fon: +49 – 911 – 5880 1846
Fax: +49 – 911 – 5880 5846
E-Mail: arno.dentel at ohm-hochschule.de<mailto:arno.dentel at ohm-hochschule.de>
Web: www.ieg.ohm-hochschule.de<http://www.ieg.ohm-hochschule.de/>
P Be green - please print only when necessary.
-----Ursprüngliche Nachricht-----
Von: trnsys-users-bounces at cae.wisc.edu<mailto:trnsys-users-bounces at cae.wisc.edu>
[mailto:trnsys-users-bounces at cae.wisc.edu<mailto:trnsys-users-bounces at cae.wisc.edu>] Im Auftrag von Felix Martin
Beutefuehr, BLV-TGE
Gesendet: Montag, 20. Dezember 2010 11:47
An: trnsys-users at engr.wisc.edu<mailto:trnsys-users at engr.wisc.edu>
Betreff: [TRNSYS-users] Type 40 Micro-Processor
Hello everybody,
I am trying to set up a solar system including a heatpump. For controlling
reasons I am planning to implement Type 40 Microprocessor.
Unfortunately I am not familiar with this type and I do not really have a
clue
how to work with this component. Does anyone have a good discription of that
type beside the "Mathematical Reference" where I can find further
information?
I am very thankful for any kind of help concerning Type 40 that gives me a
chance to understand how to work with this Microprocessor.
Yours sincerely,
Felix
--
http://webmail.fh-trier.de<http://webmail.fh-trier.de/>
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