Question: A circumferential fin of rectangular profile is constructed of duralumin and surrounds a 3-cm-diameter tube. The fin is 3 cm long and 1mmthick. The tube

A circumferential fin of rectangular profile is constructed of duralumin and surrounds a 3-cm-diameter tube. The fin is 3 cm long and 1mmthick. The tube wall temperature is 200ºC, and the fin is exposed to a fluid at 20ºC with a convection heat-transfer coefficient of 80 W/m2 ∙ ºC. Calculate the heat loss from the fin.

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