[TRNSYS-users] Absorption chiller

[David BRADLEY]

Hsein,
   This would be a problem in a real system as well, not just in 
simulation. You need to isolate the load flow from the source flow by 
using either a primary/secondary pumping scheme or by putting a buffer 
tank between the load loop and the source loop.
kind regards,
  David


On 02/10/2016 15:38, Hsein Moussawi wrote:
>
> Hi angel,
>
> Yes I know how it works and the negative values mainly appear when the 
> flow rate to the evaporator is low. However in the system I am 
> simulating, I can't control this flow rate, it is imposed by other 
> components (cooling load from building). So do you have other suggestions?
>
> Thanks for the fast reply.
>
> Regards.
>
>
>
> ------------------------------------------------------------------------
> *From:* Angel Carrera <angel.carrera at aiguasol.coop>
> *Sent:* Wednesday, February 10, 2016 9:28 PM
> *To:* TRNSYS users mailing list at OneBuilding. org
> *Subject:* Re: [TRNSYS-users] Absorption chiller
>
>
> Hi,
>
> I giess that the flowrate you are giving as an input is too low 
> related to the power requirement at the evaporator.
> I suggest you to read the descripción of the type to understand how it 
> is working, regards
>
> Angel
>
> El 10/2/2016 20:14, "Hsein Moussawi" <hsein_moussawi at hotmail.com 
> <mailto:hsein_moussawi at hotmail.com>> escribió:
>
>     Hello there,
>
>     I am using an exhaust fired absorption chiller in a certain
>     system. After simulation the temperature of the hot fluid exiting
>     the chiller is observed to be negative in many instances. This is
>     impossible in reality. I am wondering if anyone faced a similar
>     problem!?
>
>     My question is:
>
>     Is there a way by which I can limit the output of a component to
>     a certain point?? (e.g. outlet temperature of chiller to ambient
>     temperature)
>
>     Thanks in advance TRNSYS community,
>
>     Best regards.
>
>
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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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