G4: A three effect MEE system operates at the following conditions: - Plant capacity = 500 ton/day. - Steam temperature = 110 OC. - Intake seawater salinity = 42,000 ppm. - Temperature of vapor in last effect = 40 oC. - Intake seawater temperature = 20 °C. - Heat transfer coefficient in effect 1 = 3.123 kW/m2 oC. - Heat transfer coefficient in effect 2 = 1.987 kW/m2 oC. - Heat transfer coefficient in effect 3 = 1.136 kW/m2 oC. Calculate the plant performance ratio, the specific heat transfer area, and the mass flow rate of cooling water, And the unit cost

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