Performance Improvement of Solar Photovoltaic Modules through Advanced Passive Thermal Management Strategies

Engineering notes

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Chinese explanation / 中文解读

中文解读待补充：本站会优先为光伏效率、钙钛矿太阳能电池、储能技术、太阳能热利用、BIPV、并网技术等高价值论文补充中文说明。

Original abstract

Reducing reliance on fossil fuels and mitigating climate change requires enhancing the efficiency of Photovoltaic (PV) systems. One great challenge is thermal limitation, where increased operating temperatures reduce electrical output and conversion efficiency. This study investigates passive cooling techniques using water, vegetation, and coconut fiber layers to mitigate the thermal effects on PV modules. The system performance was investigated through module surface temperature measurements, electrical power output, and efficiency metrics. The results demonstrate that floating water and hybrid floating-vegetation configurations substantially improved PV performance, with power output gains of up to 55.5% and efficiency increases of approximately 63.5%. Vegetation-only cooling yielded modest improvements (~7.34%), while coconut fiber layers showed inconsistent results, sometimes decreasing performance. These passive cooling approaches, especially the floating water system, offer sustainable, energy-free solutions for optimizing PV operation, with the potential for widespread application in sustainable energy infrastructure.

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