[TRNSYS-users] TRNSYS-users Digest, Vol 90, Issue 24

ITF - Adrien JEZEQUEL a.jezequel at itf.biz
Tue Jun 12 09:00:07 PDT 2012


Or sorry, I made a mistake in my previous mail :

  * Tcool = 35 - 9 * Summer (instead of 35*winter  - 9*summer)

Regarding your heating system it may be something like :

  * Theat = 21*Winter

Regarding your attached picture, your heating system seems to work all 
the time.
In summer, either you cool at 21°C, either there is no internal gains 
defined, and you heat at 21°C.
Check your differents inputs.
You can procede step by step (internal gain = 0, ventilation = 0, 
infiltration rate = 0...) to see the influence of each parameters in 
your model to catch your issue.

Best regards
------------------------------------------------------------------------
www.itf.biz <http://www.itf.biz>
www.itf.biz <http://www.itf.biz>

	Adrien JEZEQUEL
Simulations Thermiques Dynamiques
*ITF*
	62, Rue du Bolliet
73230 St Alban Leysse
FRANCE
Phone :
Fax :
Mail:
	+33(0) 479 750 029
+33(0) 479 852 122
a.jezequel at itf.biz ou aj at itf.biz

/Afin de contribuer au respect de l'environnement, merci de n'imprimer 
cet e-mail que si nécessaire
Please, consider our environmental responsability before printing this email
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Le 12/06/2012 17:47, 王洋 a écrit :
> Dear Adrien Jezequel,
>
> Many thanks!
>
> I think you'd better put for cooling temperatures
>
>   * 35°C in winter (no cool) - heating temperature at 21°C
>   * 24°C in summer
>
> which may be translated in an equation tool by something like :
>
>   * summer = GE(TIME,2162)*LT(TIME,6552)
>   * winter = 1 - summer
>   * Tcool = 35*Winter - 9*Summer
>
> For Tcool = 35*Winter - 9*Summer, do you mean if in winter, Tcool = 35 
> °C, so Cooling doesn't work ; if in summer, Tcool = -9°C or 24 °C?
>
> Meanwhile, another weird phenomena appear: After running based on your 
> solution in winter, indoor temperature becomes 35 °C also not 21 °C, 
> although I set heating temperature as 21 °C; in summer, however, 
> indoor temperature becomes 21 °C. Please see the Attached On-Line 
> Plotter image.
> Furthermore, when I create another Tcool equation as 
> 35*winter+24*summer, the result is also like the Attached On-Line 
> Plotter image.
>
> Please give me some solutions or advices!
> I think the point how to set that Cooling doesn't work in winter? The 
> possible reason of that problem is that I also set a Mechanical 
> Ventilation in winter (Tset=19 °C) and summer (Tset=17 °C). I guess 
> Maybe the Mechanical Ventilation will influence on Cooling and heating?
>
> Many thanks in advance!
>
> Br.
>
> wang
>
>
> 2012/6/12 <trnsys-users-request at cae.wisc.edu 
> <mailto:trnsys-users-request at cae.wisc.edu>>
>
>     Send TRNSYS-users mailing list submissions to
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>
>     When replying, please edit your Subject line so it is more specific
>     than "Re: Contents of TRNSYS-users digest..."
>
>     Today's Topics:
>
>       1. Re: TRNSYS-users Digest, Vol 90, Issue 23
>          (jose.gonzalez at imdea.org <mailto:jose.gonzalez at imdea.org>)
>       2. Re: weird Qcool (ITF - Adrien JEZEQUEL)
>       3. Flue gas stack in TRNSYS (Mazen Darwish)
>       4. AutoReply: TRNSYS-users Digest, Vol 90, Issue 23
>          (kelelo1 at kelelo.com <mailto:kelelo1 at kelelo.com>)
>
>
>     ---------- 已转发邮件 ----------
>     From: <jose.gonzalez at imdea.org <mailto:jose.gonzalez at imdea.org>>
>     To: trnsys-users at cae.wisc.edu <mailto:trnsys-users at cae.wisc.edu>
>     Cc:
>     Date: Tue, 12 Jun 2012 14:56:21 +0200 (CEST)
>     Subject: Re: [TRNSYS-users] TRNSYS-users Digest, Vol 90, Issue 23
>     I am out of the office from Monday, June 11 to Friday, June 15 and
>     unable to respond at this time.
>
>     For any urgent matters, please contact Dr. Manuel Romero
>     (manuel.romero_at_imdea.org <http://manuel.romero_at_imdea.org>).
>
>     Thank you for your understanding.
>
>     Best regards,
>
>     José Gonzalez-Aguilar
>
>
>
>     ---------- 已转发邮件 ----------
>     From: ITF - Adrien JEZEQUEL <a.jezequel at itf.biz
>     <mailto:a.jezequel at itf.biz>>
>     To: trnsys-users at cae.wisc.edu <mailto:trnsys-users at cae.wisc.edu>
>     Cc:
>     Date: Tue, 12 Jun 2012 15:26:28 +0200
>     Subject: Re: [TRNSYS-users] weird Qcool
>     Dear Wang,
>
>     As far as I understand, the cooling set temperature you define in
>     your model is :
>
>       * 24°C in summer, which seems to be correct
>       * and 0°C in winter... which seems to be wrong, since you don't
>         refresh your thermal zone at 0°C in winter!
>
>     That's why you obtain huge cooling loads.
>     BAL_ENERGY is not 0 because you heat and cool in the same time in
>     winter.
>
>     I think you'd better put for cooling temperatures
>
>       * 35°C in winter (no cool) - heating temperature at 21°C
>       * 24°C in summer
>
>     which may be translated in an equation tool by something like :
>
>       * summer = GE(TIME,2162)*LT(TIME,6552)
>       * winter = 1 - summer
>       * Tcool = 35*Winter - 9*Summer
>
>     Best regards
>
>     ------------------------------------------------------------------------
>     www.itf.biz <http://www.itf.biz>
>     www.itf.biz <http://www.itf.biz>
>
>     	Adrien JEZEQUEL
>     Simulations Thermiques Dynamiques
>     *ITF*
>     	62, Rue du Bolliet
>     73230 St Alban Leysse
>     FRANCE
>     Phone :
>     Fax :
>     Mail:
>     	+33(0) 479 750 029
>     +33(0) 479 852 122 <tel:%2B33%280%29%20479%20852%20122>
>     a.jezequel at itf.biz <mailto:a.jezequel at itf.biz> ou aj at itf.biz
>     <mailto:aj at itf.biz>
>
>     /Afin de contribuer au respect de l'environnement, merci de
>     n'imprimer cet e-mail que si nécessaire
>     Please, consider our environmental responsability before printing
>     this email
>     /
>
>     Le 12/06/2012 14:55, 王洋 a écrit :
>>     Dear all,
>>
>>     I make a simulation. The cooling set temperature is 24*Summer
>>     schedule (2162 h to 6552 h), The heating set temperature is
>>     21*Winter schedule (the rest hours). After running, however, it
>>     appears WEIRD phenomenon. Please see the ATTACHED Energy_zone.BAL
>>     file. During the winter period, there are Qcools and Qcool is
>>     very large up to 47000 kJ. And then it results in wrong
>>     BAL_ENERG, it is not 0.
>>
>>     Please give me some advices and solutions to that!
>>
>>     Many thanks in advance!
>>
>>     Br.
>>
>>     wang
>>
>>     2012/6/11 <trnsys-users-request at cae.wisc.edu
>>     <mailto:trnsys-users-request at cae.wisc.edu>>
>>
>>         Send TRNSYS-users mailing list submissions to
>>         trnsys-users at cae.wisc.edu <mailto: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
>>         <mailto:trnsys-users-request at cae.wisc.edu>
>>
>>         You can reach the person managing the list at
>>         trnsys-users-owner at cae.wisc.edu
>>         <mailto: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: TRNSYS-users Digest, Vol 90, Issue 21
>>              (jose.gonzalez at imdea.org <mailto:jose.gonzalez at imdea.org>)
>>           2. AutoReply: TRNSYS-users Digest, Vol 90, Issue 21
>>              (kelelo1 at kelelo.com <mailto:kelelo1 at kelelo.com>)
>>           3. type666 (Andr?s Montero)
>>           4. Type 673 heating problem (Santeri Siren)
>>
>>
>>         ---------- 已转发邮件 ----------
>>         From: <jose.gonzalez at imdea.org <mailto:jose.gonzalez at imdea.org>>
>>         To: trnsys-users at cae.wisc.edu <mailto:trnsys-users at cae.wisc.edu>
>>         Cc:
>>         Date: Mon, 11 Jun 2012 16:07:28 +0200 (CEST)
>>         Subject: Re: [TRNSYS-users] TRNSYS-users Digest, Vol 90, Issue 21
>>         I am out of the office from Monday, June 11 to Friday, June
>>         15 and unable to respond at this time.
>>
>>         For any urgent matters, please contact Dr. Manuel Romero
>>         (manuel.romero_at_imdea.org <http://manuel.romero_at_imdea.org>).
>>
>>         Thank you for your understanding.
>>
>>         Best regards,
>>
>>         José Gonzalez-Aguilar
>>
>>
>>
>>         ---------- 已转发邮件 ----------
>>         From: kelelo1 at kelelo.com <mailto:kelelo1 at kelelo.com>
>>         To: trnsys-users at cae.wisc.edu <mailto:trnsys-users at cae.wisc.edu>
>>         Cc:
>>         Date: Mon, 11 Jun 2012 14:10:47 GMT
>>         Subject: [TRNSYS-users] AutoReply: TRNSYS-users Digest, Vol
>>         90, Issue 21
>>
>>         I will be out of the office from June 8 - 23 on a backpacking
>>         trip with my son and his Venture Crew at Philmont Scout Ranch
>>         in New Mexico. I will not have access to email or phone
>>         service while I am gone, but I will reply to your message as
>>         soon as possible after I return to the office on Monday, June
>>         25th.
>>
>>         Thank you for your patience,
>>         Mark Thornbloom
>>
>>
>>
>>
>>         ---------- 已转发邮件 ----------
>>         From: "Andrés Montero" <andresmonteroi at gmail.com
>>         <mailto:andresmonteroi at gmail.com>>
>>         To: trnsys-users at cae.wisc.edu <mailto:trnsys-users at cae.wisc.edu>
>>         Cc:
>>         Date: Mon, 11 Jun 2012 16:57:30 +0200
>>         Subject: [TRNSYS-users] type666
>>         Dear Trnsys users,
>>
>>         In order to simulate a water-cooled chiller, first I need to
>>         create the 2 external files for this component.
>>         I'm trying to find some catalogues with information of a 40
>>         to 45 kW water-cooled chiller but the web pages I run into
>>         it, ask me to register, but I'm still waiting the username
>>         and pasword. Does anyone has a catalgoue with this type of
>>         info regarding this cooling capacity machine?
>>
>>         Best regards,
>>
>>         Andrés
>>
>>         -- 
>>         Andrés Montero I.
>>
>>
>>
>>         ---------- 已转发邮件 ----------
>>         From: Santeri Siren <santeri.siren1 at gmail.com
>>         <mailto:santeri.siren1 at gmail.com>>
>>         To: "trnsys käyttäjät" <trnsys-users at cae.wisc.edu
>>         <mailto:trnsys-users at cae.wisc.edu>>
>>         Cc:
>>         Date: Mon, 11 Jun 2012 19:56:40 +0300
>>         Subject: [TRNSYS-users] Type 673 heating problem
>>         Dear all,
>>
>>         I cant make type673 heating mode to work. Cooling mode works
>>         just fine but when I change the cooling control signal to 0
>>         and heating control signal to 1 it doesnt work anymore. When
>>         the heating mode is used nothing happens. Does anyone know why?
>>
>>         Best regards,
>>         Santeri Siren
>>
>>         _______________________________________________
>>         TRNSYS-users mailing list
>>         TRNSYS-users at cae.wisc.edu <mailto:TRNSYS-users at cae.wisc.edu>
>>         https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>
>>
>>
>>
>>     _______________________________________________
>>     TRNSYS-users mailing list
>>     TRNSYS-users at cae.wisc.edu  <mailto:TRNSYS-users at cae.wisc.edu>
>>     https://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>
>     ---------- 已转发邮件 ----------
>     From: Mazen Darwish <mazentd at gmail.com <mailto:mazentd at gmail.com>>
>     To: trnsys-users at cae.wisc.edu <mailto:trnsys-users at cae.wisc.edu>
>     Cc:
>     Date: Tue, 12 Jun 2012 16:05:51 +0200
>     Subject: [TRNSYS-users] Flue gas stack in TRNSYS
>     Hello everyone ,
>     Is there a way to model a flue gas stack in TRNSYS , i need to
>     recirculate hot air and flue gases from the economizer in an HRSG
>     back to a solar tower .
>     i appreciate your ideas.
>     Mazen Darwish
>     KTH Royal Institute of Technology
>     Department of Energy Technology
>     Brinellvägen 68, SE-100 44 Stockholm, Sweden
>     Mobile: +46-(0)-723 08 18 93 <tel:%2B46-%280%29-723%2008%2018%2093>
>
>
>     ---------- 已转发邮件 ----------
>     From: kelelo1 at kelelo.com <mailto:kelelo1 at kelelo.com>
>     To: trnsys-users at cae.wisc.edu <mailto:trnsys-users at cae.wisc.edu>
>     Cc:
>     Date: Tue, 12 Jun 2012 14:23:03 GMT
>     Subject: [TRNSYS-users] AutoReply: TRNSYS-users Digest, Vol 90,
>     Issue 23
>
>     I will be out of the office from June 8 - 23 on a backpacking trip
>     with my son and his Venture Crew at Philmont Scout Ranch in New
>     Mexico. I will not have access to email or phone service while I
>     am gone, but I will reply to your message as soon as possible
>     after I return to the office on Monday, June 25th.
>
>     Thank you for your patience,
>     Mark Thornbloom
>
>
>
>     _______________________________________________
>     TRNSYS-users mailing list
>     TRNSYS-users at cae.wisc.edu <mailto:TRNSYS-users at cae.wisc.edu>
>     https://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>
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