Special Section on High and Low Concentrator Systems for Solar Electric Applications

Design of dual-curvature mirror for linear medium concentration photovoltaic systems

[+] Author Affiliations
Tamir Lance

Skyline Solar Inc., 185 East Dana Street, Mountain View, California 94041

Harold Ackler

Skyline Solar Inc., 185 East Dana Street, Mountain View, California 94041

Marc Finot

Skyline Solar Inc., 185 East Dana Street, Mountain View, California 94041

J. Photon. Energy. 2(1), 021804 (Oct 25, 2012). doi:10.1117/1.JPE.2.021804
History: Received March 1, 2012; Revised July 27, 2012; Accepted September 14, 2012
Text Size: A A A

Abstract.  The impact of mirror shape on energy production in Skyline Solar’s reflective trough medium concentration photovoltaic system is reviewed using a combination of commercial and proprietary modeling tools. For linear concentrators, an important parameter for efficiency optimization is the uniformity of the flux line on the photovoltaic cells. A significant source of nonuniformity is the discontinuity of reflected light due to the gap between mirrors along the length of the trough. Standard concentrating solar power trough mirrors have a typical length of 1.5 m with a gap between mirrors of 10 to 20 mm. To reduce nonuniformity of the flux line due to this mirror to mirror gap, Skyline Solar developed a dual curvature mirror that stretches the flux line along the trough axis. Extensive modeling and experiments have been conducted to analyze the impact of this design. The methodology of optimization is presented for the X14 Skyline system architecture, and benefits of up to 3% of energy can be realized at locations with latitude below 30 deg.

Figures in this Article
© 2012 Society of Photo-Optical Instrumentation Engineers

Topics

Mirrors

Citation

Tamir Lance ; Harold Ackler and Marc Finot
"Design of dual-curvature mirror for linear medium concentration photovoltaic systems", J. Photon. Energy. 2(1), 021804 (Oct 25, 2012). ; http://dx.doi.org/10.1117/1.JPE.2.021804


Tables

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.