[TRNSYS-users] How to connect absorption chiller to building cooling load

[David BRADLEY]

Sinchote,

   There isn't really a way to answer your question. There could be any 
number of reasons for a lower than expected cooling load. I would 
recommend that you go back through your model and make sure that you 
have set up the building correctly. Is there infiltration? Are there 
realistic energy gains from occupants and equipment? One common problem 
is that the value of TGROUND (the boundary temperature for the ground 
floor) gets set to an input whose default value is zero. In the model 
this means that the temperature of soil underneath the ground floor is 
0C. Setting that temperature to a constant value of the annual average 
air temperature is a better (if not ideal) assumption.

kind regards,

  David



On 07/23/2018 23:02, Sinchote Keeratianant via TRNSYS-users wrote:
>
> Dear Mario and Trnsys users,
>
>
> Thank you for your comment.
>
>
> However, I have a question about cooling load in TRNBuild.  In 
> TRNBuild, i set the schedule time of the building during 
> daily(8.00-17.00 hour). When i simulated the cooling load, sometimes i 
> found that the cooling load on that time was zero. I think that it 
> should be have.
>
> How can i resolve it?
>
>
> Could you help me please?
>
>
>
> Thanks.
>
> Sinchote Keeratianant
>
>
>
>
>
> ------------------------------------------------------------------------
> *From:* Tabet Ismail <tabet21 at yahoo.fr>
> *Sent:* 21 July 2018 4:55 AM
> *To:* Mario Humberto González via TRNSYS-users
> *Subject:* Re: [TRNSYS-users] How to connect absorption chiller to 
> building cooling load
> hello
> i'm ismail tabet
> I'm student beginig in transys
> i want to use transys for hybrid photovoltaic thermal collector
> can you help m
> best regards
>
> /Tabet Ismail
> /
> /Département de physique, faculté des Sciences,/
> /Université 20 Août 1955 skikda , Algérie
> /
> /i.tabet at univ-skikda.dz/
> /tabet21 at yahoo.fr/
>
>
> Le vendredi 20 juillet 2018 à 23:32:49 UTC+2, Mario Humberto González 
> via TRNSYS-users <trnsys-users at lists.onebuilding.org> a écrit :
>
>
> Dear Sinchote Keeratianant,
>
> In TRNBuild you can define a new ventilation type, with temperature, 
> flow rate, and humidity as inputs. Then activate the ventilation on 
> your thermal zone.
>
> This way you will be able to connect type 107 to type 56 in Simulation 
> Studio.
>
> Best,
> Mario
>
>
>     From: Sinchote Keeratianant <cole_sin at hotmail.com
>     <mailto:cole_sin at hotmail.com>>
>     To: "trnsys-users at lists.onebuilding.org
>     <mailto:trnsys-users at lists.onebuilding.org>"
>     <trnsys-users at lists.onebuilding.org
>     <mailto:trnsys-users at lists.onebuilding.org>>
>     Cc:
>     Bcc:
>     Date: Fri, 20 Jul 2018 04:22:21 +0000
>     Subject: [TRNSYS-users] How to connect absorption chiller to
>     building cooling load
>     Dear TRNSYS users,
>
>     I'm a beginner in TRNSYS and using TRNSYS 18.
>
>     I have a performance data of absorption chiller and i would like
>     to validate the cooling capacity of absorption chiller has enough
>     size with building cooling load or not.
>
>     Then, How can i connect the absorption chiller model type 107 to
>     building cooling load model type 56?
>
>     Could you help me please?
>
>
>     Thank you.
>
>
>     Sinchote Keeratianant
>
>
>
>
>
> -- 
> *Mario González*
> Estudiante de Maestría en Ciencia y Tecnología Ambiental
> Centro de Investigación en Materiales Avanzados, S.C.
>
> Calle CIMAV 110
> Ejido Arroyo Seco
> 34147 Durango Dgo
> googlemaps: 23.991642, -104.726418 
> <https://www.google.com.mx/maps/place/CIMAV+Unidad+Durango/@23.9832284,-104.7235413,15z/data=%214m5%213m4%211s0x869bc621a15c53fb:0x807a36fc6594487d%218m2%213d23.9913253%214d-104.7261762>
> www.cimav.edu.mx <http://www.cimav.edu.mx/>
>
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-- 
***************************
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

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