How Do Water Chillers Work?
A chiller or chilled water system is a type of refrigeration system that uses water as a secondary refrigerant. They are used in larger and more complex heating, ventilation, air conditioning and refrigeration (HVACR) applications. Typical applications for chillers are listed below. ㆍDistrict cooling ㆍCentral air conditioning ㆍHydroponics ㆍFood and beverage processing ㆍPharmaceutical and medical ㆍCold Storage ㆍThermal Energy Storage (TES) systems ㆍMachining, waterjet cutting, laser cutting, welding, etc. ㆍPlastic processing Water Cooled Screw Chiller As opposed to chillers, direct expansion (DX) refrigeration systems cool air directly from the room or enclosed space without the use of secondary refrigerants. The DX type is more suitable for smaller applications, such as residential space cooling and small freezers and refrigeration units. Principle of operation Chiller systems consist of two main loops or circuits. These are the refrigeration circuit and the chilled water