f) In an Ocean thermal energy conversion plant, 2 kg/s of warm sea water at 400 K enter a refrigerant 22 evaporator main

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F In An Ocean Thermal Energy Conversion Plant 2 Kg S Of Warm Sea Water At 400 K Enter A Refrigerant 22 Evaporator Main 1 (60.59 KiB) Viewed 24 times

f) In an Ocean thermal energy conversion plant, 2 kg/s of warm sea water at 400 K enter a refrigerant 22 evaporator maintained at 5 bar. Consider the flows of the water and refrigerant 22 to be counter-flow. The water leaves the evaporator at 300 K, and the overall heat transfer coefficient is estimated to be 1700 W/m².K. (i) (ii) (iii) (iv) Draw the temperature profile of both fluids, and determine The rate of heat transfer from warm water to the refrigerant, The surface heat transfer area of an evaporator required, The rate at which the refrigerant vapor is produced. [2 marks] [3 marks] [5 marks] [3 marks]