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Abstract Within the scope of this study the following conclusions are drawn: I- Concerning the design of the Plant. In order to reduce plant heat tranfer area, required pumping power, plant different flow rates, and size of the plant and therefore the cost of the plant, the following remarks must be taken into consideration in plsant design: 1- The blow down temperature, TB, is to be taken as close as possible to the sea water temperature. 2- The top plant temperature, Thf, is to be taken as high possible (250 F for acid treated sea water and 185 F for a poly-phosphate treatment). 3- The plants which operate at high temperature range require more efficient demisters due to the increase of entrained brine in the flash chambers. 4- Variations in the designed value of sea water temperature with a range of (77-85 F) have no considerable changes in plant design parameters. 5- Increasing the brine heater terminal terminal temperature difference requires less heat transfer area of the brine heater. |