how do cooling fins work?

I need to know how these work in relation to thermal transfers and the kinetic theory?

Answers
Cooling fins rely on conduction to diffuse the heat away from what is being cooled. The fins are designed to increase the surface area with another liquid (air for example). Here the heat is transfered using convection, cooling the fins and warming the liquid.
theo.cushion
22 March 2011
thanks!
jags
22 March 2011
Cooling fins speed up the heat transfer as they create a much larger surface area with the liquid than would otherwise be available.
theo.cushion
22 March 2011
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