High thermal efficiency solar energy desalination process - used to produce drinking water from sea water, etc.

摘要

High pressure steam raised in a solar energy boiler is expanded directly into a turbine driving a vapour compressor. Exhaust steam from the turbine is passed into a desalinator circuit to transfer heat indirectly to raw water which is thus converted to vapour while the exhaust steam is condensed. The vapour is piped to the intake of the compressor which delivers compressed vapour to the inlet end of the desalinator circuit. The desalinator circuit discharges condensate which is partly drained off as drinking water and partly recycled to the solar energy boiler to produce high pressure steam. Solar energy alone is required to power this process which operates at a high thermal efficiency.