Determine the number of fins that needs to be, Mechanical Engineering

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Determine the number of fins that needs to be

A 15 cm×20 cm hot surface at 85°C is to be cooled by attaching 4 cm long aluminum (k =237 W/m °C) fins of 2 mm×2-mm square cross section. The temperature of surrounding medium is 25°C and the heat transfer coefficient on the surfaces can be taken to be 20 W/m2 °C. If it is desired to triple the rate of heat transfer from the bare hot surface, determine the number of fins that needs to be attached

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Mechanical Engineering: Determine the number of fins that needs to be

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Mechanical Engineering: Determine the number of fins that needs to be

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