Chillers contain water, which is cooled, and is then distributed over longer distances, for example to cool whole buildings (air-conditioning chillers) or industrial processes such as plastics and rubber manufacturing and food processing (process chillers).
The cooling capacity in chillers ranges from as little as 1.75 kW for air cooled chillers up to several MW for water cooled chillers. Different capacity chillers are equipped with different compressors. Typically, process chillers have a lower COP because these chillers need to generate lower temperatures.
|Typical application||AC chillers to cool whole buildings, process chillers for industrial processes (the information on this page focuses on AC chillers)|
|Typical end-users||Mainly office buildings, retail sector, but also the health sector (e.g. hospitals), leisure and hotel sector|
|Main refrigerants used||HFC-134a, HFC-410a, HFC-407c, HCFC-22|
|Natural refrigerant alternative||HC-290 (propane), HC-1270 (propene), R-717 (ammonia), R-744 (CO2)|
|Growth rate / future demand||Continuously growing market, especially in emerging economies such as China and India|