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METHOD FOR PRODUCING A SOLAR RADIATION ABSORBER ELEMENT FOR A CONCENTRATED THERMAL SOLAR POWER PLANT.
METHOD FOR PRODUCING A SOLAR RADIATION ABSORBER ELEMENT FOR A CONCENTRATED THERMAL SOLAR POWER PLANT.
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机译:用于生产集中式热电厂的太阳能辐射吸收元件的方法。
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摘要
A solar radiation absorber element for a thermal concentrating solar power plant is achieved by forming a selective coating on an outer surface of a substrate made from stainless steel, chosen from stainless steels presenting an aluminum content of more than 0.5% by weight. Formation of the selective coating includes a surface treatment step of the substrate, by polishing, and a heat treatment step of the substrate, in an oxidizing atmosphere, in a temperature range included between 550° C. and 650° C. The heat treatment in particular enables at least one intrinsically selective superficial thin layer to be formed on the outer surface of the substrate.
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