Engine oil flows through a 25-mm-diameter tube at a rate of 0.5 kg/so The oil enters the
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Engine oil flows through a 25-mm-diameter tube at a rate of 0.5 kg/so The oil enters the tube at a temperature of 25°C, while the tube surface temperature is maintained at 100°C.
(a) Determine the oil outlet temperature for a 5-m and for a 100-m long tube. For each case, compare log mean temperature difference to the arithmetic mean temperature difference.
(b) For 5 < L < 100 m, compute and plot the average Nusselt number NU D and the oil outlet temperature as a function of L.
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Related Book For
Fundamentals of Heat and Mass Transfer
ISBN: 978-0471457282
6th Edition
Authors: Incropera, Dewitt, Bergman, Lavine
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