heat exchanger

noun
a device for transferring the heat of one substance to another, as from the exhaust gases to the incoming air in a regenerative furnace.

Origin:
1900–05

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
heat exchanger
 
n
a device for transferring heat from one fluid to another without allowing them to mix

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Heat exchanger is always a great word to know.
So is gobo. Does it mean:
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
American Heritage
Science Dictionary
heat exchanger  


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A device used to transfer heat from one fluid to another without direct contact of the fluids. Heat exchangers usually maximize the transfer of heat by maximizing the contact surface area between fluids, as when the warmer fluid is passed through a series of coils or thin plates. A car radiator is a heat exchanger, transferring the heat in a liquid that has circulated through the engine to the air.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
All systems evaluated in this report employ a plate heat exchanger to isolate
  the heat pump from the groundwater.
Simply use the sunlight to heat up the salts and put those molten salts in
  proximity to water via a heat exchanger.
Since water is the choice for running turbines and sodium reacts violently with
  water, a heat exchanger leak seems catastrophic.
Simply use the sunlight to heat up the salts and put those molten salts in
  proximity to water via a heat exchanger.
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