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A shell-and-tube heat exchanger (HX) cools an oil stream with flow rate 11 kg/s from 110 oC to 65oC. The HX has two shell passes
A shell-and-tube heat exchanger (HX) cools an oil stream with flow rate 11 kg/s from 110 oC to 65oC. The HX has two shell passes and four tube passes. The coolant, water, enters at 20 oC and leaves at 42oC. The overall heat transfer coefficient based on tube inside area, Ui = 1200 W/m2-K. a) The amount of heat transferred to the cooling water, qh. b) The flow rate of the cooling water. (kg/s) c) TLM, the log-mean temperature difference (LMTD) for the HX. d) FG, the correction factor for LMTD for a 2-4 heat exchanger. e) Estimate the heat transfer area of the HX needed to perform this operation. f) What assumption are you making in e) if you used the U value given in the problem statement? g) Would you recommend putting the oil or the water in the tubes of the heat exchanger? Justify your choice using heuristics and/or information given in the
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