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Performance test of a non-parabolic asymmetrical solar concentrator

Cleo Leung

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Abstract

The geometrical optics for constructing the reflector of a non-parabolic asymmetrical solar concentrator are reviewed. A prototype concentrator of this kind has been constructed with a concentration ratio of 4.07 and a theoretical optical efficiency eta/sub 0/ = 0.67. Standard performance tests on such a concentrator indicate a heat-loss coefficient U = 4.35 Wm/sup -2/ /sup 0/C/sup -1/ and a heat-extraction efficiency factor F = 0.92. 12 references.

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What this paper is about

The geometrical optics for constructing the reflector of a non-parabolic asymmetrical solar concentrator are reviewed. A prototype concentrator of this kind has been constructed with a concentration ratio of 4.07 and a theoretical optical efficiency eta/sub 0/ = 0.67. Standard performance tests on such a concentrator indicate a heat-loss coefficient U = 4.35 Wm/sup -2/ /sup 0/C/sup -1/ and a heat-extraction efficiency factor F = 0.92. 12 references.

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Available abstract

The geometrical optics for constructing the reflector of a non-parabolic asymmetrical solar concentrator are reviewed. A prototype concentrator of this kind has been constructed with a concentration ratio of 4.07 and a theoretical optical efficiency eta/sub 0/ = 0.67. Standard performance tests on such a concentrator indicate a heat-loss coefficient U = 4.35 Wm/sup -2/ /sup 0/C/sup -1/ and a heat-extraction efficiency factor F = 0.92. 12 references.

Key concepts: Concentrator, Nonimaging optics, Reflector (photography), Parabolic reflector, Optics, Physics, Materials science, Energy conversion efficiency

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