International development and advances in solar selective absorbers

Carl M. Lampert

doi:10.1117/12.290210

14 October 1997 International development and advances in solar selective absorbers

Carl M. Lampert

Proceedings Volume 3138, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XV; (1997) https://doi.org/10.1117/12.290210
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

This study covers advances in solar selective absorbers. The classes of selective absorbers are discussed along with their characteristics and physics. From much of the research and development on solar coatings in the 1970s and early 1980s only black chrome and nickel-pigmented aluminum have been largely commercially adopted. Black chrome still has the best proven overall operational characteristics for the higher flat plate collector temperatures. New types of coatings are being developed by vacuum and chemical deposition processes. Some coatings are being developed for increased temperature applications. The new coatings are known as 'black crystal,' a dendritic black nickel, TiN_xO_y, and sputtered black nickel. These coatings are emerging in the marketplace, but long-term testing has not been performed yet. The characteristics of these coatings are discussed. Several issues concerning coating and process ecology are also discussed.

Citation Download Citation

Carl M. Lampert "International development and advances in solar selective absorbers", Proc. SPIE 3138, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XV, (14 October 1997); https://doi.org/10.1117/12.290210

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