In: Mechanical Engineering
A circumferential aluminum fin is attached to an electronic resistor having 1/4 inch diameter. The fin is 1/8 inch long and .001 inches thick. The convective heat transfer coefficient to the surrounding media, air at 60oF, is 10 Btu/h ft2 oF when the fin is at 120oF. Estimate the fin efficiency and the heat transfer from the fin.