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<p>Photovoltaic panels are considered a vital sustainable source of electrical energy; however, their efficiency tends to decline as a result of increasing temperature. This study aims to demonstrate the effectiveness of a novel evaporative cooling and groundwater-based system designed to simultaneously cool both the air and photovoltaic panels in hot, dry climates. Experimental results from the developed prototype indicate a clear enhancement in energy generation compared to conventional photovoltaic and evaporative cooling systems. Statistically, the evaporative cooling system reduced the average panel temperature by 15&#xa0;°C, resulting in an 8.4% increase in photovoltaic efficiency, while maintaining air conditions of 32.6&#xa0;°C and 62% relative humidity. Furthermore, the groundwater-to-air heat exchanger reduced the panel temperature by 22.8&#xa0;°C, leading to a 12.7% increase in efficiency, and lowered the air temperature from 43.5 to 26.3&#xa0;°C at 55% relative humidity. These results highlight the potential of integrated cooling systems to significantly improve the performance of photovoltaic panels in arid regions.</p>

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Experimental evaluation of a hybrid evaporative and groundwater cooling system for enhancing photovoltaic efficiency in arid climates

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年10月13日

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  • Deyaa M. N. Mahmood,
  • Issam M. Ali Aljubury,
  • Najah M. L. Al Maimuri,
  • Mudhar A. Al-Obaidi,
  • Farhan Lafta Rashid,
  • Arman Ameen,
  • Shaohua Dong,
  • Yasir Mukhtar

摘要

Photovoltaic panels are considered a vital sustainable source of electrical energy; however, their efficiency tends to decline as a result of increasing temperature. This study aims to demonstrate the effectiveness of a novel evaporative cooling and groundwater-based system designed to simultaneously cool both the air and photovoltaic panels in hot, dry climates. Experimental results from the developed prototype indicate a clear enhancement in energy generation compared to conventional photovoltaic and evaporative cooling systems. Statistically, the evaporative cooling system reduced the average panel temperature by 15 °C, resulting in an 8.4% increase in photovoltaic efficiency, while maintaining air conditions of 32.6 °C and 62% relative humidity. Furthermore, the groundwater-to-air heat exchanger reduced the panel temperature by 22.8 °C, leading to a 12.7% increase in efficiency, and lowered the air temperature from 43.5 to 26.3 °C at 55% relative humidity. These results highlight the potential of integrated cooling systems to significantly improve the performance of photovoltaic panels in arid regions.