Related Resources: calculators

Heat Sink Convection with Fins Calculator

Heat Transfer Design and Engineering

Heat Transfer by Convection of a Heat Sink with Fins Calculator and Equations

Fins are used to increase heat transfer area and provide a cooling effect.

However, if h*A / P*k is greater than 1.00 the fins will insulate and prevent heat flow.

h = air film convective coefficient
A = exposed surface area of the fins.
P = perimeter of the fins.
k = fin material conductivity coefficient.

References:

• Heat Transfer, A Practical approach 2nd Edition, Yunus A. Cengal
• Introduction to Engineering Heat Transfer, R. Kutty