METHOD FOR CONVERSION OF STRONG SOLAR RADIATION INTO ELECTRIC POWER AT A SOLAR-TOWER POWER STATION

摘要

The invention proposes a method for conversion of solar radiation into electric power with the use of electrochemical cycle in which the following operations are performed: electrochemical generation in the process of reaction-recombination of and in a fuel element with increased pressure at the expense of hydrostatical potential of a water column at the bottom of a tower of a solar power station (SPS): P=gH +1atm. and temperature of a cycle Tmin, close to environment temperature , output of electric power I Ute at the terminals of low-temperature fuel element, and selection of thermal effect of exothermic electrode reaction of O; water supply through a pipeline from the fuel element to a heat exchanger installed on the top of SPS tower; water heating in a counter-flow heat exchanger by the heat of high-temperature electrolysis products ( hydrogen and oxygen), water evaporation, and following overheat of the obtained vapour up to the temperature of ppTkp; supply of the overheated vapour at an expansion engine and functioning on it pressure from ~1 atm. to the Pmin level below atmospheric pressure with obtaining vapour expansion energy on a shaft; following overheat of vapour to the high temperature electrolysis due to the high-potential heat ofQfrom solar-heat collector of SPS; vapour electrolytic decomposition in EL at decreased pressure of 1 tm. (with separate obtaining of and ) at the expense of part of electric power I Uel generated by the fuel element, and Qhigh-potential heat from SPS solar-heat collector; separate cooling of products of electrolysis (hydrogen and oxygen) in the counter-flow heat exchanger via the heat regeneration in the cycle; separate compression of in compressors installed in SPS tower and axis-to-axis interconnected with the expansion engine, at the expense of expansion engine operation and, partly, the fuel element; separate supply of hydrogen and oxygen in the fuel cell through two lines from compressors on the top of SPS tower to its foundation.