Oil is cooled by water in a counter-current heat exchanger. If the flow rate of the oilis 1.5 kg s-1 and that of the water is 1.0 kg s-1, estimate the temperature to whichthe oil is cooled if the water enters at - 10-C and leaves at 5-C. The oil enters theheat exchanger at 25 C. If the heat transfer surface area of the exchanger is 5 m?,determine the outlet temperature of the oil (•C) and the overall heat transfercoefficient (W m-2 K-1). Take the mean heat capacity of oil and water to be 2.09 kJkg-1 K-1 and 4.18 kJ kg-1 K-1, respectively.Select one:O A. AToil-out =5•C, U = 721.51 W/(m2 K')O B. AToil-out =5•C, U = 360.74 W/(m2 K')O C. AT oll-out =10•C, U = 721.51 W/(m2 K')O D. AToil-out =10-C, U = 360.74 W/(m2 K')

Given, m˙o = 1.5 kg/sm˙w = 1 kg/sTw-in = -10 °CTw-out = 5 °CTo-in = 25 °CA = 5 m2Co = 2.09…

Oil is cooled by water in a counter-current heat exchanger. If the flow rate of the oil is 1.5 kg s-1 and that of the water is 1.0 kg s-1, estimate the temperature to which the oil is cooled if the water enters at -10•C and leaves at 5•C. The oil enters the heat exchanger at 25-C. If the heat transfer surface area of the exchanger is 5 m2, determine the outlet temperature of the oil (•C) and the overall heat transfer coefficient (W m-2 K-). Take the mean heat capacity of oil and water to be 2.09 kJ kg** K-l and 4.18 kJ kg1 K', respectively. Select one: O A. AToll-out =5•C, U = 721.51 W/(m2 K') O B. ATO--out =5•C, U = 360.74 W/(m2 K') O C. AToll-out =10 C, U = 721.51 W/(m2 K') %3D O D. AToll-out = 10 C, U = 360.74 W/(m2 K')

Oil is cooled by water in a counter-current heat exchanger. If the flow rate of the oil is 1.5 kg s-1 and that of the water is 1.0 kg s-1, estimate the temperature to which the oil is cooled if the water enters at -10•C and leaves at 5•C. The oil enters the heat exchanger at 25-C. If the heat transfer surface area of the exchanger is 5 m2, determine the outlet temperature of the oil (•C) and the overall heat transfer coefficient (W m-2 K-). Take the mean heat capacity of oil and water to be 2.09 kJ kg** K-l and 4.18 kJ kg1 K', respectively. Select one: O A. AToll-out =5•C, U = 721.51 W/(m2 K') O B. ATO--out =5•C, U = 360.74 W/(m2 K') O C. AToll-out =10 C, U = 721.51 W/(m2 K') %3D O D. AToll-out = 10 C, U = 360.74 W/(m2 K')

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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