Engine oil is heated by flowing through a circular tubeof
Chapter 8, Problem 8.25(choose chapter or problem)
Engine oil is heated by flowing through a circular tubeof diameter D?50 mm and length L?25 m andwhose surface is maintained at 150C.(a) If the flow rate and inlet temperature of the oil are 0.5 kg/s and 20C, what is the outlet tempera-ture Tm,o? What is the total heat transfer rate qforthe tube?(b) For flow rates in the range 0.5?,compute and plot the variations of Tm,oand qwith. For what flow rate(s) are qand Tm,omaximized?Explain your results
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