21 August 1995 Compact high-flux two-stage solar collectors based on tailored edge-ray concentrators
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Abstract
Using the recently-invented tailored edge-ray concentrator (TERC) approach for the design of compact two-stage high-flux solar collectors--a focusing primary reflector and a nonimaging TERC secondary reflector--we present: 1) a new primary reflector shape based on the TERC approach and a secondary TERC tailored to its particular flux map, such that more compact concentrators emerge at flux concentration levels in excess of 90% of the thermodynamic limit; and 2) calculations and raytrace simulations result which demonstrate the V-cone approximations to a wide variety of TERCs attain the concentration of the TERC to within a few percent, and hence represent practical secondary concentrators that may be superior to corresponding compound parabolic concentrator or trumpet secondaries.
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Robert P. Friedman, Robert P. Friedman, Jeffrey M. Gordon, Jeffrey M. Gordon, Harald Ries, Harald Ries, } "Compact high-flux two-stage solar collectors based on tailored edge-ray concentrators", Proc. SPIE 2538, Nonimaging Optics: Maximum Efficiency Light Transfer III, (21 August 1995); doi: 10.1117/12.216989; https://doi.org/10.1117/12.216989
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