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<p>The scalability and declining costs of solar power are making it increasingly accessible and cost-effective. However, the efficiency of PV modules tends to decrease as their temperature rises. To address this challenge, a 50-W polycrystalline PV module was utilized to enhance the performance of the existing PV thermal collector. Paraffin functioned as a phase change material (PCM) and was strategically stored on the rear side of the PV panel within a fin-integrated container. Additionally, a hybrid blend of multi-walled carbon nanotube and silicon dioxide was integrated with the PCM to optimize its thermophysical properties, achieving superior results. The impact of this innovative hybrid system on crucial metrics such as PV module temperature, PCM temperature gain, melting time, heat storage, current output, output power, and overall system efficiency was meticulously evaluated. The results were truly compelling, with the hybrid nanofluid and PCM combination significantly boosting PV module performance. Notably, the PV module temperature was maintained at 29.6&#xa0;°C, PCM temperature gain reached an impressive 64.3&#xa0;°C, the heat stored was 48.7&#xa0;W, the output power was 21.2&#xa0;W, and the system achieved a maximum efficiency of 22.7%, marking a substantial leap forward in sustainable energy technology.</p>

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Exploration of photovoltaic thermal collector performance enhancement by the accumulations of hybrid nanofluid and phase change material

  • 期刊论文

  • 发表日期：

    2025年7月26日

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  • R. Venkatesh,
  • Vinayagam Mohanavel,
  • Apurv Verma,
  • Prashant Sharma,
  • S. Sekar,
  • Manikandan Ayyar,
  • Manzoore Elahi M. Soudagar,
  • Sulaiman Ali Alharbi,
  • Sami Al Obaid

摘要

The scalability and declining costs of solar power are making it increasingly accessible and cost-effective. However, the efficiency of PV modules tends to decrease as their temperature rises. To address this challenge, a 50-W polycrystalline PV module was utilized to enhance the performance of the existing PV thermal collector. Paraffin functioned as a phase change material (PCM) and was strategically stored on the rear side of the PV panel within a fin-integrated container. Additionally, a hybrid blend of multi-walled carbon nanotube and silicon dioxide was integrated with the PCM to optimize its thermophysical properties, achieving superior results. The impact of this innovative hybrid system on crucial metrics such as PV module temperature, PCM temperature gain, melting time, heat storage, current output, output power, and overall system efficiency was meticulously evaluated. The results were truly compelling, with the hybrid nanofluid and PCM combination significantly boosting PV module performance. Notably, the PV module temperature was maintained at 29.6 °C, PCM temperature gain reached an impressive 64.3 °C, the heat stored was 48.7 W, the output power was 21.2 W, and the system achieved a maximum efficiency of 22.7%, marking a substantial leap forward in sustainable energy technology.