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Hot engine oil enters a 1-in schedule 40 steel pipe at 80c

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Reference no: EM13344602

Hot engine oil enters a 1-in schedule 40 steel pipe at 80?C with a velocity of 5 m/s. The pipe is submerged horizontally in water at 20?C so that it loses heat by free convection. Calculate the length of pipe necessary to lower the oil temperature to  60?C. 

Reference no: EM13344602

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