[TRNSYS-users] Absorption Chiller/Type56

[Bjoern Nienborg]

Dear Meriem,

Type 107 is a model for the absorption chiller without any equipment 
around it. This means it must be connected to 3 circuits: the 
high-temperature circuit (solar collector), the cooling circuit (cooling 
tower) and the chilled water circuit. To connect it to Type 56 you can 
use Type 32 or 52 (Cooling Coils, for air cooling) or add active 
layers/chilled ceilings to the building walls and use the chilled water 
as input. If you choose the cooling coil version you have to convert the 
air temperature/humidity using Type 33.

Best regards,

Björn




MERIEM SOUSSI schrieb:
>   Dear Trnsys-users,
>    
>   I'm trying to modelize a multizone building cooled by an absorption chiller coupled to a solar collector, I'd like to use the energy rate control mode.
>   So do I have to define a cooling type in the *.Bui file with a fixed power that will be an input to type 56 and an output of the absorption chiller (the chilled water energy)?
>   Then according to the cooling demand (output of type 56) employ an auxiliary heater in order to increase the temperature of the hot water entering the absorption chiller.
>   Or as explained in the documentation: "If the cooling equipment is modeled external to the TYPE 56 component, the cooling type should not be used. Instead, the VENTILATION AIRCHANGE, TEMPERATURE and HUMIDITY should be defined as INPUTS, fed by outputs from the conditioning equipment component(s)"?
>   But the outputs of an absorption chiller just provide chilled water temperature, its energy..etc..
>    
>   Thank you for clarifying my doubts
>   Best regards
>    
>
>  		
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-- 
Björn Nienborg
Thermal Systems and Buildings
Fraunhofer Institut für Solare Energiesysteme ISE
Heidenhofstr. 2, 79110 Freiburg, Germany
Tel.: +49 (0)761 4588-5303 FAX: +49 (0)761 4588-9333
http://www.ise.fraunhofer.de