Monday, July 23, 2012

heat exchanger

A heat exchanger is a device built for efficient heat transfer from one medium to another, whether the media are separated by a solid wall so that they never mix, or the media are in direct contact. [1] They are widely used in space heating , refrigeration , air conditioning , power plants , chemical plants , petrochemical plants , petroleum refineries , and natural gas processing . One common example of a heat exchanger is the radiator in a car, in which a hot engine-cooling fluid, like antifreeze , transfers heat to air flowing through the radiator.

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