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<p>In this study, the effect of fins integration on the operation of a BIPV system is investigated using CFD simulations. We propose different shapes of this cooling system which are directly attached to the PV system, in the backside of its PV cell. Rectangular fins, wavy fins and a combination of wavy fins and slots are proposed and the corresponding effect on the BIPV system overall performance is evaluated. The results clearly show that all the proposed cooling techniques were found to be effective in reducing the solar cell temperature and thereby increasing the electrical conversion efficiency of the BIPV system. A temperature reduction of up to 18 °C was observed for the optimum design corresponding to the BIPV combining wavy fins and slots, which allowed an increase of the electrical efficiency of up to 12 %. In addition to its effects on the BIPV system electrical performance, the proposed cooling structures offered better heat exchange, the corresponding heat transfer coefficient and Nusselt number are so increased. Similarly, a more uniform temperature distribution is associated to the fins equipped systems, mainly for the configuration combining wavy fins and slots, which directly affects the life time of the BIPV system.</p>

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Performance enhancement of a building integrated photovoltaic system using wavy fins and slots

  • 期刊论文

  • 发表日期：

    2026年3月10日

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  • Monia Chaabane,
  • Salma Benzarti,
  • Hatem Mhiri,
  • Hervé Bournot

摘要

In this study, the effect of fins integration on the operation of a BIPV system is investigated using CFD simulations. We propose different shapes of this cooling system which are directly attached to the PV system, in the backside of its PV cell. Rectangular fins, wavy fins and a combination of wavy fins and slots are proposed and the corresponding effect on the BIPV system overall performance is evaluated. The results clearly show that all the proposed cooling techniques were found to be effective in reducing the solar cell temperature and thereby increasing the electrical conversion efficiency of the BIPV system. A temperature reduction of up to 18 °C was observed for the optimum design corresponding to the BIPV combining wavy fins and slots, which allowed an increase of the electrical efficiency of up to 12 %. In addition to its effects on the BIPV system electrical performance, the proposed cooling structures offered better heat exchange, the corresponding heat transfer coefficient and Nusselt number are so increased. Similarly, a more uniform temperature distribution is associated to the fins equipped systems, mainly for the configuration combining wavy fins and slots, which directly affects the life time of the BIPV system.