Fig. 3

Schematic for the test rig with the new arrangement. (1) Air compressor, (2) Vacuum pump, (3) Filter dryer, (4) Ranque-Hilsch vortex tubes, (5) Seawater preheater unit, (6) Seawater evaporator unit, (7) Condenser unit, (8) Pressure sensors, (9) Temperature sensors, (10) Flow rate sensors, (11) Hot air line, (12) Main cold air line, (13) Main hot air line, (14) Relatively cold air line, (15) Control valves, (16) Seawater inlet valve, (17) Preheated seawater inlet valve, (18) Brine exit valve, (19) Freshwater exit valve