[TRNSYS-users] QHEAT & TYPE 46

王洋 wanghongyang1767 at gmail.com
Wed Dec 22 07:21:42 PST 2010 

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>

>  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>
>
> 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>写道：
>>
>>> Send TRNSYS-users mailing list submissions to
>>>        trnsys-users at cae.wisc.edu
>>>
>>> To subscribe or unsubscribe via the World Wide Web, visit
>>>        https://www-old.cae.wisc.edu/mailman/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: 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)
>>>   4. Re: Type 40 Micro-Processor (Arno Dentel)
>>>
>>>
>>> ---------- 已转发邮件 ----------
>>> From: "hotline" <hotline at transsolar.com>
>>> To: "A.Marston" <A.Marston at eb-engineers.com>, trnsys-users <
>>> 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
>>>
>>>
>>>
>>> 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]
>>> *Gesendet:* Donnerstag, 16. Dezember 2010 15:31
>>> *An:* 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*
>>>
>>>
>>>
>>>
>>>
>>> ---------- 已转发邮件 ----------
>>> From: "Felix Martin Beutefuehr, BLV-TGE" <beutefuf at fh-trier.de>
>>> To: 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
>>>
>>>
>>>
>>>
>>> ---------- 已转发邮件 ----------
>>> From: a8304506 at graduate.hku.hk
>>> To: David BRADLEY <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>:
>>>
>>> > 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 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
>>> > > 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
>>> >
>>> > http://www.tess-inc.com
>>> > http://www.trnsys.com
>>> >
>>> >
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> ---------- 已转发邮件 ----------
>>> From: "Arno Dentel" <Arno.Dentel at ohm-hochschule.de>
>>> To: "'Felix Martin Beutefuehr, BLV-TGE'" <beutefuf at fh-trier.de>, <
>>> 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
>>> Web:    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] Im Auftrag von Felix Martin
>>> Beutefuehr, BLV-TGE
>>> Gesendet: Montag, 20. Dezember 2010 11:47
>>> An: 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
>>>
>>> _______________________________________________
>>> TRNSYS-users mailing list
>>> TRNSYS-users at cae.wisc.edu
>>> https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
>>>
>>> _______________________________________________
>>> TRNSYS-users mailing list
>>> TRNSYS-users at cae.wisc.edu
>>> https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
>>>
>>>
>>
>
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