Impact of Sandblasting on Fresnel Lens for Concentrator Photovoltaic

Abstract:

When installing concentrator photovoltaic (CPV) systems in desert areas, we must consider the impact of sandstorms on the Fresnel lens in CPV modules. CPV systems are much more sensitive to sandstorms than flat-panel PV systems because they can only use the direct beam component of sunlight. In this study, the transmittance of a PMMA substrate after sandblasting was evaluated and the influence of sandblasting on the output of a CPV system was assessed. The transmittance of PMMA decreased with an increase in the momentum of blown sand. The conversion efficiency of a CPV module was determined by equivalent circuit calculation. The conversion efficiency decreased with increasing momentum. The coefficient of degradation was 0.17 point per unit momentum.

• Periodical: Advanced Materials Research (Volume 894)
• Pages: 250-253
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.894.250
• Online since: February 2014
• Authors: Kensuke Nishioka, Kosei Sato, Yasuyuki Ota
• Keywords: Concentrator Photovoltaic, Desert, Fresnel Lens, Sandblasting, Transmittance

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