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Proceedings Paper

Solar Absorber Material Stability Under High Solar Flux
Author(s): A. Ignatiev; G. Zajac; G. B. Smith
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Paper 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.

Paper Details

Date Published: 12 April 1982
PDF: 6 pages
Proc. SPIE 0324, Optical Coatings for Energy Efficiency and Solar Applications, (12 April 1982); doi: 10.1117/12.933270
Show Author Affiliations
A. Ignatiev, University of Houston (United States)
G. Zajac, University of Houston (United States)
G. B. Smith, University of Houston (United States)

Published in SPIE Proceedings Vol. 0324:
Optical Coatings for Energy Efficiency and Solar Applications
Carl M. Lampert, Editor(s)

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