State-of-the-Art of Concentrating Photovoltaic Thermal Technology

Alois Resch and Robert Höller ()
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Alois Resch: School of Engineering, University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, A-4600 Wels, Austria
Robert Höller: School of Engineering, University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, A-4600 Wels, Austria

Energies, 2023, vol. 16, issue 9, 1-13

Abstract: Concentrating photovoltaic thermal (CPVT) technology has the potential to support the industrial sector with renewable electricity and heat simultaneously. The implementation of spectral splitting emerges as a possible approach to significantly increase the conversion efficiency, and furthermore, to hurdle the fundamental discrepancy of CPVT systems, that the electrical and the thermal receiver part have opposing temperature requirements. This paper provides an introductive description of beam splitting methodology and presents an updated review of the latest developments in the specific sector of spectral splitting by selective absorption. Furthermore, a novel CPVT receiver design utilizing bendable PV cells and an innovative heat transfer fluid are explained in detail. Simulation results illustrate the possibilities of spectral splitting to raise the electrical conversion efficiency in CPVT receivers by up to 42.9%. Potential improvements in receiver designs are discussed for further enhancement of the technical capabilities and possible cost reduction of the implemented material.

Keywords: beam splitting; hybrid solar collector; industrial heat; renewable heat and power (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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