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Physics, 03.07.2019 04:10 PencilLover101
Hot exhaust gases leaving a stationary diesel engine at 450°c enter a 15-cm-diameter pipe at an average velocity of 3.6 m/s. the surface temperature of the pipe is 180°c. determine the pipe length if the exhaust gases are to leave the pipe at 250°c after transferring heat to water in a heat recovery unit. use properties of air for exhaust gases.
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