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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 22, Iss. 4 — Feb. 15, 1983
  • pp: 568–572

Area utilization efficiency of a sloping heliostat system for solar concentration

Ling Y. Wei  »View Author Affiliations


Applied Optics, Vol. 22, Issue 4, pp. 568-572 (1983)
http://dx.doi.org/10.1364/AO.22.000568


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Abstract

Area utilization efficiency (AUE) is formulated for a sloping heliostat system facing any direction. The effects of slope shading, incidence factor, sun shading, and tower blocking by the mirrors are all taken into account. Our results show that annually averaged AUEs calculated for heliostat systems (1) increase with tower height at low slope angles but less rapidly at high slopes, (2) increase monotonically with slope angle and saturate at large slopes for systems facing due south, (3) reach a maximum at a certain slope for systems facing other directions than due south, and (4) drop sharply at slopes greater than a certain value for systems facing due east or west due to slope shading effect. The results are useful for solar energy collection on nonflat terrains.

© 1983 Optical Society of America

History
Original Manuscript: June 17, 1982
Published: February 15, 1983

Citation
Ling Y. Wei, "Area utilization efficiency of a sloping heliostat system for solar concentration," Appl. Opt. 22, 568-572 (1983)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-22-4-568

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