heat exchanger


heat exchanger

noun

Definition of HEAT EXCHANGER

:  a device (as an automobile radiator) for transferring heat from one fluid to another without allowing them to mix

First Known Use of HEAT EXCHANGER

1902

heat ex·chang·er

noun \-iks-ˌchānj-ər\   (Medical Dictionary)

Medical Definition of HEAT EXCHANGER

: a device (as in an apparatus for extracorporeal blood circulation) for transferring heat from one fluid to another without allowing them to mix

heat exchanger

noun    (Concise Encyclopedia)

Any of several devices that transfer heat from a hot to a cold fluid. In many engineering applications, one fluid needs to be heated and another cooled, a requirement economically accomplished by a heat exchanger. In double-pipe exchangers, one fluid flows inside the inner pipe, and the other in the annular space between the two pipes. In shell-and-tube exchangers, many tubes are mounted inside a shell; one fluid flows in the tubes and the other flows in the shell, outside the tubes. Special-purpose devices such as boilers, evaporators, superheaters, condensers, and coolers are all heat exchangers. Heat exchangers are used extensively in fossil-fuel and nuclear power plants, gas turbines, heating and air conditioning, refrigeration, and the chemical industry. See also cooling system.

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