Compact high-flux two-stage solar collectors based on tailored edge-ray concentrators

Robert P. Friedman; Jeffrey M. Gordon; Harald Ries

doi:10.1117/12.216989

21 August 1995 Compact high-flux two-stage solar collectors based on tailored edge-ray concentrators

Robert P. Friedman, Jeffrey M. Gordon, Harald Ries

Proceedings Volume 2538, Nonimaging Optics: Maximum Efficiency Light Transfer III; (1995) https://doi.org/10.1117/12.216989
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

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.

Citation Download Citation

Robert P. Friedman, Jeffrey M. Gordon, and 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); https://doi.org/10.1117/12.216989

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