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Convection Cooling

Convection is probably the form of heat transfer that we are most familiar with. We heat our houses with convection (using 'radiators'), we heat our food in convecting saucepans and fan ovens and we lose most of our excess body heat through convection. Convection may be familiar, unfortunately it is also fiendishly complicated!

What is Convection?

"Convection is the transfer of heat energy by the movement of matter." There are a few points in that short statement that aren't quite right but it is adequate for most situations. For thermal convection to occur we have to have the following:

If all the conditions are met then the warm fluid will expand and rise carrying the heat energy with it.

Convection in a Liquid

Convection in a Liquid

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