[TRNSYS-users] Absorption chiller as heat pump

[David BRADLEY]

Muhammad,

   Are you looking for an absorption heat pump model? My understanding 
of absorption chillers and heat pumps (separately) is that they use 
fundamentally different processes for providing cooling. Heat pumps rely 
on fairly standard vapor compression cycle that (normally) use 
electricity to run the compressor. In an absorption chiller you have two 
coolants, one of which provides evaporative cooling and in so doing is 
absorbed into the second. A heat input is then needed to reseparate the 
coolants.

   There are such things as absorption heat pumps and if you are looking 
for one of those then I am not aware of a TRNSYS model. Based on what 
little I have read, I do not think that Type677 (or any of the other 
TRNSYS absorption chiller models) could be used to provide both heating 
and cooling. If you are aware of a specific device for which 
manufacturer's performance data is available then it would not be hard 
to create a TRNSYS Type that reads the data. In fact that is the 
approach that Type677 takes.

kind regards,

David


On 04/09/2020 05:58, Muhammad Zeeshan wrote:
> Hello everyone,
>                           I am working on a double effect absorption 
> chiller(Type 677) in TRNSYS. Is is possible to use the same chiller as 
> heat pump in TRNSYS during heating season. Or any other component in 
> TRNSYS which can model absorption chiller as heat pump?
>
> Your help in this regard is highly appreciated.
>
>
> Warm regards,
> Muhammad Zeeshan

-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
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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