Scholarlink

Thermal management of PV arrays is essential to improve energy conversion efficiency and mitigate heat-induced performance degradation. In this study, the thermal performance of a 4 × 5-scale PV array under natural wind conditions was evaluated, and CFD simulations were used to compare configurations with and without deflectors. The study found that the fluid passage outlet velocity of the Laval introduced through the deflector increased by 4%, and the temperature of the first and second rows decreased by 1.32 °C and 2.37 °C, respectively, with a slight advantage in the third row (0.56 °C cooling), but due to heat accumulation, the overall array temperature of the last row increased by 0.9 °C, reducing the overall array temperature by 0.84 °C. These results highlight the potential of deflectors to enhance the cooling of PV modules.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Photovoltaic Panel Cooling with Air Deflectors: CFD Simulation

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Cikun Fu,
  • Xingyou Xie,
  • Qingfu Liu,
  • Shengle Li,
  • Qiang Zhao,
  • Fei Li

摘要

Thermal management of PV arrays is essential to improve energy conversion efficiency and mitigate heat-induced performance degradation. In this study, the thermal performance of a 4 × 5-scale PV array under natural wind conditions was evaluated, and CFD simulations were used to compare configurations with and without deflectors. The study found that the fluid passage outlet velocity of the Laval introduced through the deflector increased by 4%, and the temperature of the first and second rows decreased by 1.32 °C and 2.37 °C, respectively, with a slight advantage in the third row (0.56 °C cooling), but due to heat accumulation, the overall array temperature of the last row increased by 0.9 °C, reducing the overall array temperature by 0.84 °C. These results highlight the potential of deflectors to enhance the cooling of PV modules.