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A novel PV/T hybrid system with longitudinal inner plate-fins using water-based CuO nanofluid cooling

Author

Listed:
  • Aydın, Ahmet
  • Çelebi, Yahya
  • Cengiz, Mazlum
  • Kayri, İsmail
  • Aydın, Hüseyin

Abstract

As fossil fuels still dominate global energy consumption, improving the performance of photovoltaic/thermal (PV/T) systems is necessary for more sustainable energy production. This study experimentally investigates an innovative PV/T hybrid system cooled with CuO-water nanofluid under real outdoor operating conditions. The main novelty of this study is the integration of an internally plate-finned cooling channel with varying CuO-water nanofluid concentrations, enabling the simultaneous evaluation of passive surface enhancement and active nanofluid cooling. The performance of CuO-water cooling fluids containing 0.2, 0.4, and 0.6 wt% CuO was compared with water-cooled and uncooled reference panels. The developed cooling configuration achieved a maximum reduction of 15.60 °C in PV module temperature. Among all cooling scenarios, the 0.2 wt% CuO-water cooling fluid provided the best overall performance, achieving the highest power output and electrical efficiency improvement. Overall, the CuO-water cooled configurations showed higher performance than the conventional water-cooled case, with average total thermal efficiency gains reaching 24.52%. These results demonstrate that combining longitudinal inner plate-fins with CuO nanoparticle concentration provides a feasible strategy for reducing PV/T operating temperature and enhancing overall energy performance.

Suggested Citation

  • Aydın, Ahmet & Çelebi, Yahya & Cengiz, Mazlum & Kayri, İsmail & Aydın, Hüseyin, 2026. "A novel PV/T hybrid system with longitudinal inner plate-fins using water-based CuO nanofluid cooling," Energy, Elsevier, vol. 360(C).
    • Handle: RePEc:eee:energy:v:360:y:2026:i:c:s0360544226017652
    DOI: 10.1016/j.energy.2026.141658
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