boiling point of the feedwater is below its incoming temperature. Flashing occurs in steps as the feedwater passes in collection by way of stages at successively decrease pressures. The advantage of this system is that it can be operated at comparatively low temperatures (70°C). A second distillation technique, called the Multiple Effect evaporation system, makes use of evaporator chambers that obtain heat from an exterior source. The evaporation feed is preheated by scorching product water from
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