What is Absorption Chiller in HVAC system
Absorption chiller occupies vital position in an HVAC system.Absorption chiller is an equipment which uses a heat source, a refrigerant and an absorbent for producing chilled or hot water. In the types of chillers,along with vapor compression water chiller or electric chiller ,absorption cooling system is also used in many applications.Absorption chillers produce chilled water under vacuum conditions for the purpose of air-conditioning and technology process.
Basic components of Vapor absorption chillers
Absorption chillers in its simplest form (single stage) consist of following main parts:
- Heat exchanger
- Refrigerant Pump
- Solution pump
3. Function of Evaporator in absorption chiller
Refrigerant from condenser flows to evaporator .In this compartment of absorption chiller,refrigerant gets vaporized by taking heat from chilled water.Refrigerant from evaporator refrigerant pan is pumped over the evaporator tubes with the help of refrigerant pump.Flow of refrigerant over evaporator tubes evaporates the refrigerant thus producing refrigeration effect, and evaporates to form vapor by absorbing heat of chilled water flowing through tubes.In this way,evaporation takes place at constant pressure process where refrigerant gets latent heat from chiller water.Chiller absorption takes place here in absorber. Chilled water is cooled and return to the system of customer.
4. Function of Absorber in absorption chiller
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