DIRECT SOLAR STEAM GENERATOR AND METHOD OF SHUTING DOWN A DIRECT SOLAR STEAM GENERATOR

摘要

A direct solar steam generator is provided. The direct solar steam generator includes a solar evaporator having an evaporator circuit for circulation of a working fluid, an evaporator inlet pipe for supplying fluid to the evaporator circuit and an evaporator outlet pipe for collecting the working fluid exiting the evaporator circuit, and a solar concentrator for concentrating solar energy towards the evaporator circuit. The direct solar steam generator also includes a fluid arrangement configured to allow forming a static liquid seal in the outlet pipe using the working fluid.