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Proceedings Paper

Optical properties of nonimaging concentrators with corrugated reflectors
Author(s): Mats Roennelid; Bengt Perers; Bjorn Karlsson
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Paper Abstract

A ray tracing study has been performed on the optical properties of cylindrical nonimaging concentrators with linear corrugated reflectors. The corrugations are assumed to be V-formed and to have an extension parallel to the meridian plane of the concentrators. It is shown that the acceptance angle for radiation incident in the meridian plane can be increased for moderate corrugations. This increased acceptance is balanced by a decreased acceptance of radiation from other directions. Calculations of angular acceptance for a 2X compound parabolic concentrator is presented. It is shown that the annual irradiation on a solar collector with booster reflector can be increased if corrugated reflectors are used instead of smooth reflectors.

Paper Details

Date Published: 9 September 1994
PDF: 8 pages
Proc. SPIE 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII, (9 September 1994); doi: 10.1117/12.185403
Show Author Affiliations
Mats Roennelid, Univ. of Falun Borlange (Sweden)
Bengt Perers, Vattenfall Utveckling AB (Sweden)
Bjorn Karlsson, Vattenfall Utveckling AB (Sweden)


Published in SPIE Proceedings Vol. 2255:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII
Volker Wittwer; Claes G. Granqvist; Carl M. Lampert, Editor(s)

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