Thermal desalination - employs adiabatic evaporator to produce very cheap drinking water

摘要

Distilled water can cheaply produced from a supply of sea water in a desalination plant in which turbine exhaust steam is passed through a condenser to preheat the supply to an adiabetic evaporator from which residue liq is continuously recycled to the condenser via a water-cooled heat exchanger. Pref. the vapour produced in the evaporator is led into a compressor which delivers into a condenser from which distillate is collected. By making efficient use of heat in the passout steam without detracting from the performance of the turbine, the cost of producing distilled water is reduced to about 20% of previous costs using conventional evaporation systems.