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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 28 — Oct. 1, 2012
  • pp: 6848–6854

Planar waveguide concentrator used with a seasonal tracker

Sébastien Bouchard and Simon Thibault  »View Author Affiliations


Applied Optics, Vol. 51, Issue 28, pp. 6848-6854 (2012)
http://dx.doi.org/10.1364/AO.51.006848


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Abstract

Solar concentrators offer good promise for reducing the cost of solar power. Planar waveguides equipped with a microlens slab have already been proposed as an excellent approach to produce medium to high concentration levels. Instead, we suggest the use of a cylindrical microlens array to get useful concentration without tracking during the day. To use only a seasonal tracking system and get the highest possible concentration, cylindrical microlenses are placed in the east–west orientation. Our new design has an acceptance angle in the north–south direction of ± 9 ° and ± 54 ° in the east–west axis. Simulation of our optimized system achieves a 4.6 × average concentration level from 8:30 to 16:30 with a maximum of 8.1 × and 80% optical efficiency. The low-cost advantage of waveguide-based solar concentrators could support their use in roof-mounted solar panels and eliminate the need for an expensive and heavy active tracker.

© 2012 Optical Society of America

OCIS Codes
(080.0080) Geometric optics : Geometric optics
(350.6050) Other areas of optics : Solar energy
(220.4298) Optical design and fabrication : Nonimaging optics

ToC Category:
Solar Energy

History
Original Manuscript: June 13, 2012
Revised Manuscript: August 30, 2012
Manuscript Accepted: September 4, 2012
Published: September 27, 2012

Citation
Sébastien Bouchard and Simon Thibault, "Planar waveguide concentrator used with a seasonal tracker," Appl. Opt. 51, 6848-6854 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-28-6848


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