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A circumferential aluminum fin is attached to an electronic resistor having 1/4 inch diameter. The fin...

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Mechanical Engineering

A circumferential aluminum fin is attached to an electronicresistor having 1/4 inch diameter. The fin is 1/8 inch long and.001 inches thick. The convective heat transfer coefficient to thesurrounding media, air at 60oF, is 10 Btu/h ft2oF when the fin is at 120oF. Estimate the finefficiency and the heat transfer from the fin.

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