A novel evaporation process has been developed during the past decade that provides a substantial increase in the productivity rate (capacity) of vertical tube evaporators. This process, vertical tube foam evaporation, has been well defined in a series of pilot plants and has been field demonstrated at a power plant site for the desalination of cooling tower blow-down. The energy for evaporation used in this demonstration was turbine exhaust steam, of essentially zero value. Based on this demonstration a design and cost estimates have been prepared for using waste-heat desalination to convert seawater into boiler feed. This waste-heat vertical tube foam evaporation (WH-VTFE) plant had a design capacity of 151 cubic meters (40000 U.S. gallons) per day of distillate. Since this evaporation plant augments the capacity of the power plant condenser it improves the turbine efficiency and provides a saving in fuel.
Waste-heat desalination of seawater for boiler feed
Entsalzung von Meerwasser mit Abwaerme fuer die Boilerspeisung
1983
8 Seiten, 2 Bilder, 6 Quellen
Conference paper
English
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