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

王洋 wanghongyang1767 at gmail.com
Tue Jun 12 08:47:25 PDT 2012 

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>

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> Today's Topics:
>
>   1. Re: TRNSYS-users Digest, Vol 90, Issue 23
>      (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)
>
>
> ---------- 已转发邮件 ----------
> From: <jose.gonzalez at imdea.org>
> To: 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).
>
> Thank you for your understanding.
>
> Best regards,
>
> José Gonzalez-Aguilar
>
>
>
> ---------- 已转发邮件 ----------
> From: ITF - Adrien JEZEQUEL <a.jezequel at itf.biz>
> To: 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
>  ------------------------------
>   [image: www.itf.biz] <http://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 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
> *
>
> 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>
>
>> Send TRNSYS-users mailing list submissions to
>>        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
>>
>> 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: TRNSYS-users Digest, Vol 90, Issue 21
>>      (jose.gonzalez at imdea.org)
>>   2. AutoReply: TRNSYS-users Digest, Vol 90, Issue 21
>>      (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>
>> To: 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).
>>
>> Thank you for your understanding.
>>
>> Best regards,
>>
>> José Gonzalez-Aguilar
>>
>>
>>
>> ---------- 已转发邮件 ----------
>> From: kelelo1 at kelelo.com
>> To: 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>
>> To: 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>
>> To: "trnsys käyttäjät" <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
>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>
>>
>
>
> _______________________________________________
> TRNSYS-users mailing listTRNSYS-users at cae.wisc.eduhttps://mailman.cae.wisc.edu/listinfo/trnsys-users
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>
>
> ---------- 已转发邮件 ----------
> From: Mazen Darwish <mazentd at gmail.com>
> To: 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
>
>
> ---------- 已转发邮件 ----------
> From: kelelo1 at kelelo.com
> To: 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
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>
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