Abstract
For both linear and point-focus Fresnel reflectors, we present a new type of ideal nonimaging secondary concentrator, the tailored edge-ray concentrator, that can closely approach the thermodynamic limit of concentration. For large rim-angle heliostat fields, practical-sized secondaries with shapes that should be relatively easy to fabricate can achieve concentrations substantially above those of compound parabolic concentrators. This superiority stems from designing so as to accommodate the particular flux from the heliostat field. The edge-ray principle used for generating the new secondary dictates a heliostat tracking strategy that is different from the conventional one but is equally easy to implement.
© 1993 Optical Society of America
Full Article | PDF ArticleMore Like This
Harald Ries and Wolfgang Spirkl
Appl. Opt. 35(13) 2242-2245 (1996)
Robert P. Friedman and J. M. Gordon
Appl. Opt. 35(34) 6684-6691 (1996)
Max Schmitz, Thomas Cooper, Gianluca Ambrosetti, and Aldo Steinfeld
Appl. Opt. 54(33) 9709-9721 (2015)