(Solution Download) A very long copper rod [k =372 W/m· ?C] 2.5 cm in diameter has one end maintained at 90?C. The rod..


A very long copper rod [k =372 W/m· ?C] 2.5 cm in diameter has one end maintained at 90?C. The rod is exposed to a fluid whose temperature is 40?C. The heattransfer coefficient is 3.5 W/m2 · ?C. How much heat is lost by the rod? 2-73 An aluminum fin 1.5 mm thick is placed on a circular tube with 2.7-cm OD. The fin is 6 mm long. The tube wall is maintained at 150?C, the environment temperature is 15?C, and the convection heat-transfer coefficient is 20W/m2 · ?C. Calculate the heat lost by the fin.

 







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