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Exact analytic flux distributions for two-dimensional solar concentrators

Naum Fraidenraich, Manoel Henrique de Oliveira Pedrosa Filho, Olga C. Vilela, and Jeffrey M. Gordon

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Abstract

A new approach for representing and evaluating the flux density distribution on the absorbers of two-dimensional imaging solar concentrators is presented. The formalism accommodates any realistic solar radiance and concentrator optical error distribution. The solutions obviate the need for raytracing, and are physically transparent. Examples illustrating the method’s versatility are presented for parabolic trough mirrors with both planar and tubular absorbers, Fresnel reflectors with tubular absorbers, and V-trough mirrors with planar absorbers.

© 2013 Optical Society of America

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