Lightweight, passive radiative cooling to enhance concentrating photovoltaics

Peter Bermel

doi:10.1117/12.2570711

20 August 2020 Lightweight, passive radiative cooling to enhance concentrating photovoltaics

Peter Bermel

Proceedings Volume 11496, New Concepts in Solar and Thermal Radiation Conversion III; 114960B (2020) https://doi.org/10.1117/12.2570711
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

Thermal management is extremely important for renewable energy systems such as photovoltaics (PV), thermophotovoltaics (TPV) and concentrating photovoltaics (CPV). Elevated operating temperatures not only reduce the efficiency of PV modules, but also substantially reduce their lifetimes. This is an even more critical issue for higher heat load systems, such as TPV and CPV, where low-bandgap solar cells are commonly used, making the system more sensitive to temperature increases. Radiative cooling can reject significantly more waste heat than convection and conduction at high temperatures by sending it directly into space. Therefore, in this study, we examine an outdoor radiative cooling system that consumes no power while realizing a substantial reduction in operating temperature, which may be suitable for substantially improving the performance and lifetime concentrating photovoltaics.

Conference Presentation

Citation Download Citation

Peter Bermel "Lightweight, passive radiative cooling to enhance concentrating photovoltaics", Proc. SPIE 11496, New Concepts in Solar and Thermal Radiation Conversion III, 114960B (20 August 2020); https://doi.org/10.1117/12.2570711

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