Question: mainly help on part b, please do show all work. thank you so much Problem 1 (15 points): Hot water is used to heat air

mainly help on part b, please do show all work. thank

mainly help on part b, please do show all work. thank you so much

Problem 1 (15 points): Hot water is used to heat air in a double-pipe heat exchanger. The heat transfer coefficients on the water side and on the air side are 100 Btu/hr.ft2.F and 10 Btu/hr.ft2.F respectively. The heat exchanger pipe is 2-inch, schedule 40 steel (k= 54 W/m K) with water inside. a)) Calculate the overall heat transfer coefficient based on the outer diameter. Express you answer in Btu/hr.ft2.F and W/m2.. Show work. b)) Assume that a fouling factor of 1,000 Btu/hr.ft2.F based on the tube outside diameter has developed over time, calculate the overall heat transfer coefficient based on the outer diameter. Express you answer in Btu/hr.ft2.F and W/m2. C

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