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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 22, Iss. S2 — Mar. 10, 2014
  • pp: A498–A510

Proof of principle demonstration of a self-tracking concentrator

Volker Zagolla, Eric Tremblay, and Christophe Moser  »View Author Affiliations


Optics Express, Vol. 22, Issue S2, pp. A498-A510 (2014)
http://dx.doi.org/10.1364/OE.22.00A498


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Abstract

We present to the best of our knowledge the first successful demonstration of a planar, self-tracking solar concentrator system capable of a 2-dimensional angular acceptance of over 40°. The light responsive mechanism allows for efficient waveguide coupling and light concentration independently of the angle of incidence within the angular range. A coupling feature is created at the focal spot of the optical system by locally melting a phase change material which acts as an actuator due to the large thermal expansion. A dichroic prism membrane reflects the visible light so that it is efficiently coupled into a waveguide at the point of the created coupling feature. We show simulation results for concentration and efficiency, validated by an experimental proof of concept demonstration of a self-tracking concentrator array element. Simulations show that a system based on this approach can achieve 150X effective concentration by scaling the system collecting area to reasonable dimensions (40 x 10 cm2).

© 2014 Optical Society of America

OCIS Codes
(220.1770) Optical design and fabrication : Concentrators
(230.7390) Optical devices : Waveguides, planar
(350.6050) Other areas of optics : Solar energy

ToC Category:
Waveguide Concentrators

History
Original Manuscript: November 22, 2013
Revised Manuscript: January 30, 2014
Manuscript Accepted: February 19, 2014
Published: March 3, 2014

Virtual Issues
Renewable Energy and the Environment (2014) Optics Express

Citation
Volker Zagolla, Eric Tremblay, and Christophe Moser, "Proof of principle demonstration of a self-tracking concentrator," Opt. Express 22, A498-A510 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-S2-A498


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References

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