Solar Absorber Material Stability Under High Solar Flux

A. Ignatiev; G. Zajac; G. B. Smith

doi:10.1117/12.933270

12 April 1982 Solar Absorber Material Stability Under High Solar Flux

A. Ignatiev, G. Zajac, G. B. Smith

Proceedings Volume 0324, Optical Coatings for Energy Efficiency and Solar Applications; (1982) https://doi.org/10.1117/12.933270
Event: 1982 Los Angeles Technical Symposium, 1982, Los Angeles, United States

Abstract

Solar absorbing Black Chrome coating have been exposed to high temperatures (350-400°C) under high solar fluxes (0.4 to 2.0 MW/mL) to test for their stability under actual operating conditions. Field tests at the White Snds Solar Furnace have shown higher stability than expected from oven tested samples. Laboratory studies utilizing spectrally selective concentrated solar simulated radiation have indicated that the cause of the higher stability under solar irradiation is photo-stimulated desorption of oxygen bearing species at the absorber surface and resultant reduced oxidation of the absorber.

Citation Download Citation

A. Ignatiev, G. Zajac, and G. B. Smith "Solar Absorber Material Stability Under High Solar Flux", Proc. SPIE 0324, Optical Coatings for Energy Efficiency and Solar Applications, (12 April 1982); https://doi.org/10.1117/12.933270

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