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



Dear Adrien Jezequel,

Many thanks!

I think you'd better put for cooling temperatures

which may be translated in an equation tool by something like :
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@cae.wisc.edu>
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Today's Topics:

  1. Re: TRNSYS-users Digest, Vol 90, Issue 23
     (jose.gonzalez@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@kelelo.com)


---------- 已转发邮件 ----------
From: <jose.gonzalez@imdea.org>
To: trnsys-users@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).

Thank you for your understanding.

Best regards,

José Gonzalez-Aguilar



---------- 已转发邮件 ----------
From: ITF - Adrien JEZEQUEL <a.jezequel@itf.biz>
To: trnsys-users@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
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@itf.biz ou aj@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@cae.wisc.edu>
Send TRNSYS-users mailing list submissions to
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or, via email, send a message with subject or body 'help' 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 21
     (jose.gonzalez@imdea.org)
  2. AutoReply: TRNSYS-users Digest, Vol 90, Issue 21
     (kelelo1@kelelo.com)
  3. type666 (Andr?s Montero)
  4. Type 673 heating problem (Santeri Siren)


---------- 已转发邮件 ----------
From: <jose.gonzalez@imdea.org>
To: trnsys-users@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).

Thank you for your understanding.

Best regards,

José Gonzalez-Aguilar



---------- 已转发邮件 ----------
From: kelelo1@kelelo.com
To: trnsys-users@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@gmail.com>
To: trnsys-users@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@gmail.com>
To: "trnsys käyttäjät" <trnsys-users@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

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_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@cae.wisc.edu
https://mailman.cae.wisc.edu/listinfo/trnsys-users


---------- 已转发邮件 ----------
From: Mazen Darwish <mazentd@gmail.com>
To: trnsys-users@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 


---------- 已转发邮件 ----------
From: kelelo1@kelelo.com
To: trnsys-users@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



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Attachment: weird Tcool.jpg
Description: JPEG image