A high temperature hybrid photovoltaic-thermal receiver employing spectral beam splitting for linear solar concentrators

Ahmad Mojiri; Cameron Stanley; Gary Rosengarten

doi:10.1117/12.2187869

5 September 2015 A high temperature hybrid photovoltaic-thermal receiver employing spectral beam splitting for linear solar concentrators

Ahmad Mojiri, Cameron Stanley, Gary Rosengarten

Author Affiliations +

Proceedings Volume 9559, High and Low Concentrator Systems for Solar Energy Applications X; 95590D (2015) https://doi.org/10.1117/12.2187869
Event: SPIE Optics + Photonics for Sustainable Energy, 2015, San Diego, California, United States

Abstract

Hybrid photovoltaic/thermal (PV-T) solar collectors are capable of delivering heat and electricity concurrently. Implementing such receivers in linear concentrators for high temperature applications need special considerations such as thermal decoupling of the photovoltaic (pv) cells from the thermal receiver. Spectral beam splitting of concentrated light provides an option for achieving this purpose. In this paper we introduce a relatively simple hybrid receiver configuration that spectrally splits the light between a high temperature thermal fluid and silicon pv cells using volumetric light filtering by semi-conductor doped glass and propylene glycol. We analysed the optical performance of this device theoretically using ray tracing and experimentally through the construction and testing of a full scale prototype. The receiver was mounted on a commercial parabolic trough concentrator in an outdoor experiment. The prototype receiver delivered heat and electricity at total thermal efficiency of 44% and electrical efficiency of 3.9% measured relative to the total beam energy incident on the primary mirror.

Conference Presentation

Citation Download Citation

Ahmad Mojiri, Cameron Stanley, and Gary Rosengarten "A high temperature hybrid photovoltaic-thermal receiver employing spectral beam splitting for linear solar concentrators", Proc. SPIE 9559, High and Low Concentrator Systems for Solar Energy Applications X, 95590D (5 September 2015); https://doi.org/10.1117/12.2187869

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