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heat exchanger
(redirected from Heat-exchanger)

   Also found in: Wikipedia 0.04 sec.

heat exchanger

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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? Mentioned in ? References in periodicals archive
 
For 80 years, cooling towers have been the workhorses of plastics and other industries despite the ongoing expense of water treatment, regular heat-exchanger cleaning, difficult cold-weather operation, and large consumption of water.
As with the original Hot Dawg heater, the new HDS is certified for residential and commercial use and features Modine's field-proven tubular heat-exchanger design.
The systems are said to be easy to hook up and maintain, with cleanable, replaceable heat-exchanger tube bundles.
 
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