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<p>In the present study, the performance of a hybrid PV/T solar collector system integrated with nanofluids as coolants is examined. The device utilizes single-crystal silicon photovoltaic (PV) cells for electrical energy generation, and thermal collection is achieved with a thermal collector that operates at relatively low temperatures, enabling resourceful applications. The study is an experimental investigation of the collector performance of single photovoltaic (PV) and hybrid photovoltaic/thermal (PV/T) collectors operating with Al<sub>2</sub>O<sub>3</sub>/water nanofluid as a cooling agent. It is observed that the PV/T performance has increased significantly, and its efficiency has been greatly enhanced, especially given the monotonic effective-medium increase in the nanofluids thermal conductivity with particle loading (Maxwell-type). Specifically, the PV/T system showed a 21.2% higher total efficiency with nanofluid as a coolant compared to air. This improvement is due to the enhanced heat dissipation resulting from the excellent heat transfer characteristics of the nanofluids, leading to better thermal and electrical performance of the system.</p>

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Enhancing the efficiency of hybrid photovoltaic/thermal solar collectors using Al2O3 nanofluids: experimental performance and optimization

  • 期刊论文

  • 发表日期：

    2025年12月3日

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  • Mohammed Mahmood Mustafa,
  • Mustafa Hidayet Ibrahim,
  • Adnan M. Hussien,
  • Mohammed W. Muayad,
  • Afrah Turki Awad

摘要

In the present study, the performance of a hybrid PV/T solar collector system integrated with nanofluids as coolants is examined. The device utilizes single-crystal silicon photovoltaic (PV) cells for electrical energy generation, and thermal collection is achieved with a thermal collector that operates at relatively low temperatures, enabling resourceful applications. The study is an experimental investigation of the collector performance of single photovoltaic (PV) and hybrid photovoltaic/thermal (PV/T) collectors operating with Al2O3/water nanofluid as a cooling agent. It is observed that the PV/T performance has increased significantly, and its efficiency has been greatly enhanced, especially given the monotonic effective-medium increase in the nanofluids thermal conductivity with particle loading (Maxwell-type). Specifically, the PV/T system showed a 21.2% higher total efficiency with nanofluid as a coolant compared to air. This improvement is due to the enhanced heat dissipation resulting from the excellent heat transfer characteristics of the nanofluids, leading to better thermal and electrical performance of the system.