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Making freshwater from seawater by freezing process is depicted in Figure 2 . The pre - chilled seawater is sprayed into a vacuum at low
Making freshwater from seawater by freezing process is depicted in Figure The prechilled seawater is sprayed into a vacuum at low pressure. The cooling required to freeze some of the feed seawater comes from the evaporation of a fraction of the water entering the chamber. The concentration of the brine stream, B is salt by mass.The pure saltfree water vapor is compressed and fed to a melter at a higher pressure, where the heat of condensation of the vapor is removed through the heat of fusion of the ice, which contains no salt. As a result, pure cold water and concentrated brine by mass leave the process as products. You need to perform DFA for the systems to:
i determine the flow rates of streams W and D ii
determine the flow rates of streams C B and A per hour
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