Tracking-integrated optics

Applications in solar concentration

Brian Wheelwright, J Roger P Angel, Blake Coughenour

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Conventional concentrating photovoltaic (CPV) systems track the sun with high precision dual-axis trackers. The emergent field of tracking-integrated optics has the potential to simplify the mechanics of CPV systems by loosening or eliminating the need for dual-axis tracking. In a tracking-integrated scheme, external module tracking is complemented or entirely replaced by miniature tracking within the module. This internal tracking-integration may take the form of active small-motion translation, rotation of arrayed optics, or by passive material property changes induced by the concentrated light. These methods are briefly reviewed. An insolation weighting model is presented which will aid in the design of tracking-integrated optics by quantifying the tradeoff between angular operation range and annual sunlight collection. We demonstrate that when tracking-integrated optics are used to complement external module tracking about a horizontal, North-South oriented axis, truncating the operational range may be advantageous. At Tucson AZ latitude (32.2°N), 15.6% of the angular range may be truncated while only sacrificing 3.6% of the annual insolation. We show that modules tracked about a polar-aligned axis are poorly-suited for truncation.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume9293
ISBN (Print)9781628413786
DOIs
StatePublished - 2014
EventInternational Optical Design Conference 2014, IODC 2014 - Kohala Coast, United States
Duration: Jun 23 2014Jun 26 2014

Other

OtherInternational Optical Design Conference 2014, IODC 2014
CountryUnited States
CityKohala Coast
Period6/23/146/26/14

Fingerprint

Integrated Optics
Integrated optics
integrated optics
Incident solar radiation
modules
Sun
Photovoltaic System
insolation
Optics
Module
Materials properties
Mechanics
concentrating
Annual
Range of data
tradeoffs
sunlight
Truncation
complement
Material Properties

Keywords

  • Concentrators
  • Nonimaging optics
  • Solar energy
  • Solar tracking
  • Tracking-integrated optics

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Wheelwright, B., Angel, J. R. P., & Coughenour, B. (2014). Tracking-integrated optics: Applications in solar concentration. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9293). [929315] SPIE. https://doi.org/10.1117/12.2074602

Tracking-integrated optics : Applications in solar concentration. / Wheelwright, Brian; Angel, J Roger P; Coughenour, Blake.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9293 SPIE, 2014. 929315.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wheelwright, B, Angel, JRP & Coughenour, B 2014, Tracking-integrated optics: Applications in solar concentration. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 9293, 929315, SPIE, International Optical Design Conference 2014, IODC 2014, Kohala Coast, United States, 6/23/14. https://doi.org/10.1117/12.2074602
Wheelwright B, Angel JRP, Coughenour B. Tracking-integrated optics: Applications in solar concentration. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9293. SPIE. 2014. 929315 https://doi.org/10.1117/12.2074602
Wheelwright, Brian ; Angel, J Roger P ; Coughenour, Blake. / Tracking-integrated optics : Applications in solar concentration. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9293 SPIE, 2014.
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