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Heat Exchanger/Heat Sink

by zeus2kx
Tags: exchanger or heat, heat, sink
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zeus2kx
#1
Nov27-10, 11:37 AM
P: 3
Hello Guys,

What is the difference between these two, Heat Exchanger and Heat Sink?

Thanks.

Zeus
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russ_watters
#2
Nov27-10, 01:39 PM
Mentor
P: 22,237
Welcome to PF.

A "heat sink" can be a specific object that dissipates heat (a metal block with fins) or can be used as a general term describing anything that absorbs or dissipates heat. Technically, it is supposed to be a heat reservoir. Depending on the context, the colloquial usage may not be technically accurate. A heat exchanger is any device that exchanges heat between two mediums.

For example, in engineering a heat exchanger might be a shell that's filled with water with tubes of another stream of water in it. The water itself (that is receiving the heat) would technically be the heat sink.
zeus2kx
#3
Nov27-10, 05:09 PM
P: 3
Thanks for reply.


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