Concentration of sunlight to solar-surface levels using non-imaging optics

Details Concentration of sunlight to solar-surface levels using non-imaging optics Concentration of sunlight to solar-surface levels using non-imaging optics

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989natur.339..198g&link_type=abstract

Nature (ISSN 0028-0836), vol. 339, May 18, 1989, p. 198-200. Research supported by DOE.

Physics

Optics

9

Concentrators, Solar Collectors, Sunlight, Imaging Techniques, Paraboloid Mirrors, Solar Flux Density, Solar-Pumped Lasers, Waste Disposal

Scientific paper

An account is given of the design and operational principles of a solar concentrator that employs nonimaging optics to achieve a solar flux equal to 56,000 times that of ambient sunlight, yielding temperatures comparable to, and with further development of the device, exceeding those of the solar surface. In this scheme, a parabolic mirror primary concentrator is followed by a secondary concentrator, designed according to the edge-ray method, which is filled with a transparent oil. The device may be used in materials-processing, waste-disposal, and solar-pumped laser applications.

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