Water desalination and purificn by solar energy - in osmosis plant powered by turbine generator in closed solar cell circuit

摘要

A conversion plant from solar energy into thermal energy for the desalination or purification of salt or contaminated water uses in the primary circuit it a fluid with a heat of vaporisation of 0.5kWh/kg. This circulates from the solar cell to a steam turbine, which drives a generator, and a condenser. The crude water is preheated in the condenser and passes into a reverse osmosis or electrodialysis plant. The pump in this circuit is driven by a motor, powdered by the generator. A plant operating on this cycle produces 10-25 times the amt. of drinking water per m2 of solar collector surface area. The plant operates completely independent of additional energy supplies.