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A shell and tube counterflow heat exchanger is used to heat liquid witer fromi 30C to 70C ty oil that flows through the tube side.

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A shell and tube counterflow heat exchanger is used to heat liquid witer fromi 30C to 70C ty oil that flows through the tube side. The mass flow rate of water is 2kg/L. The specific heat of the oil is 1.5kJ/kgK, and the water is 4.2kJ/kg.K. The oil enters at 110C and lenver at 70C. The ovcrall heat transfer coefficient is 350W/m2K. Calculate the mass flow rale (kefb) of life of imal the heat exchanger area required for the process. [8M]

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