Holographic diffraction-through-aperture spectrum splitting for increased hybrid solar energy conversion efficiency

Shelby Vorndran, Juan M. Russo, Yuechen Wu, Michael Gordon, Raymond Kostuk

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

A holographic module is designed to split light into two spectral bands for hybrid solar energy conversion. Incoming light is either transmitted to a large subsystem receiver or diffracted through an aperture in this receiver toward a second subsystem receiver. The holographic element is simulated using rigorous diffraction and ray-tracing methods. Two applications of the design are described and simulated. A photovoltaic/thermal system with 93% optical efficiency and adjustable subsystem power output ratio is designed to address solar intermittency and provide energy storage. A photovoltaic system added to an alga biofuel operation significantly increases energy output while maintaining 92% of the original algae yield. The energy return on investment of this photovoltaic/biofuel system is 2.4× greater than that of the biofuel system alone, leading to economically viable operation. Modifications to the standard holographic lens provide additional increases in spectrum-splitting capability, optical efficiency, and energy conversion efficiency. The diffraction-through-aperture concept is demonstrated as a successful approach to spectrum splitting for hybrid solar applications.

Original languageEnglish (US)
Pages (from-to)326-335
Number of pages10
JournalInternational Journal of Energy Research
Volume39
Issue number3
DOIs
StatePublished - Mar 10 2015

Keywords

  • Biofuel
  • Holographic
  • Hybrid solar energy
  • Photovoltaic
  • Spectrum splitting
  • Thermal

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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