7. = A thermal vapor compression system operates at the following conditions: Product flow rate = 10 kg/s Feed water salinity = 42000 ppm Feed water temperature = 14.4C Pressure of motive steam = 4.6 kWm2 C Calculate the following: The evaporator heat transfer area. - The thermal performance ratio. The change in the thermal performance ratio for the following conditions: The feed water temperature increases to 30 C. The evaporation increases to 100 C. The motive steam pressure decreases to 500 kPa