1991 A Study of Spray Flash Desalination
An experimental study of spray flash desalination is performed by injecting superheated water into a low pressure chamber by means of a nozzle. The temperature of the superheated water is 30°C lower than the conventional desalination plant, which is nearly equal to seawater surface temperature. Effect of nozzle shape is studied by using three types of nozzles: cylindrical, oblong and 4-holes. The reduction of the non-equilibrium temperature difference (NETD) and phenomena of the spray flash evaporation are shown. The spray flash evaporation rate is highest with the 4-holes nozzle. Desalination water is obtained sufficiently be any of the three types of nozzles.