2. Cold water (Cp = 1 BTU/Ibm-F) at 95 F and a flow rate of 9000 lb/hr is used to cool hot water from 205 F to 155 F, which flows at the same rate as the cold water. If the overall heat transfer coefficient is 400 BTU/hr-ft^2-F, compute the heat transfer area for a. Parallel flow b. Counter flow C. Cross-flow d. Determine the NTƯ's for each case a., b. and c. above

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