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Angular characterization of low concentrating PV-CPC using low-cost reflectors

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Author

  • Sylvester Hatwaambo
  • Håkan Håkansson
  • Johan Nilsson
  • Björn Karlsson

Summary, in English

The most expensive component in a conventional solar photovoltaic (PV) system is the solar module cell. The module cost could be reduced if low-cost reflector materials are used to concentrate solar energy flux across a small module area. Three reflector materials were studied for fill-factor improvements in low concentrating system. These were anodized aluminium, rolled aluminium foil and miro reflectors. From the short-circuit current measurements within +/- 10 degrees from normal incidence, the effective specular reflectance was predicted for each reflector material. The effective specular reflectance was predicted from the flux distribution profile measurements and the ray-tracing results at normal incidence. The ray-tracing and the short-circuit current results were in good agreement within 10% but rather different from spectrophotometer measured results. (C) 2008 Elsevier B.V. All rights reserved.

Publishing year

2008

Language

English

Pages

1347-1351

Publication/Series

Solar Energy Materials and Solar Cells

Volume

92

Issue

11

Document type

Journal article

Publisher

Elsevier

Topic

  • Building Technologies

Keywords

  • low concentration
  • angular-tilt
  • acceptance half angle
  • energy flux

Status

Published

ISBN/ISSN/Other

  • ISSN: 0927-0248