Chiller

A chiller is a machine that removes heat from a liquid through an vapor compression, adsorption refrigeration, or absorption refrigeration cycles. This liquid can then be moved through a heat exchanger to cool equipment. Refrigeration makes waste heat as a byproduct that must be removed from it or for greater efficiency it can be recovered for heating purposes.^[1] Vapor compression chillers may use any of a number of different types of compressors.The most used today are the hermetic scroll, semi-hermetic screw, or centrifugal compressors. The condensing side of the chiller can be either air or water-cooled. The chiller is often cooled by an induced or forced draft cooling tower. Absorption and adsorption chillers need a heat source to work.^[2][3]

Chilled water is used to cool and dehumidify air. This is used in large commercial, industrial, and institutional buildings. For example, schools, hospitals, and factories. Water-cooled chillers can be liquid-cooled (through cooling towers), air-cooled, or evaporatively cooled. Water or liquid-cooled systems can be more efficient and have environmental impact advantages over air-cooled systems.^[4]

1. ↑ "Academia.edu - Share research". Academia.edu. Retrieved 24 January 2022.
2. ↑ "Types of Chillers - A Thomas Buying Guide". Thomasnet.com. Archived from the original on 2023-05-28. Retrieved 2023-05-28.
3. ↑ Evans, Paul (September 26, 2017). "Absorption Chiller, How it works". Thengineeringmindset.com.
4. ↑ III, Herbert W. Stanford (2016-04-19). HVAC Water Chillers and Cooling Towers: Fundamentals, Application, and Operation, Second Edition. CRC Press. p. xvii. ISBN 9781439862117.