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CFD analysis of PV panel temperature reduction via cooling methods under high irradiance conditions

Author

Listed:
  • Minazhova, Saulesh
  • Nalibayev, Nurgali
  • Georgiev, Aleksandar
  • Bekbayev, Amangeldy
  • Sarsenbayev, Yerlan

Abstract

In hot climate regions, high ambient temperatures significantly reduce the efficiency of PV systems, posing a major challenge for their performance. Thus, this study uses CFD analysis of a 3D PV panel model to examine how elevated temperatures impact its performance and efficiency. The aim of this research is to investigate the thermal behaviour of the PV panel when different cooling systems are applied. The novelty of this work lies in applying cooling techniques to the rear side of the panel, which has been less commonly explored in previous studies. The results show that at a solar radiation intensity of 786 W/m2 and an ambient air temperature of 33 °C, the panel's surface temperature reaches 50 °C without any cooling. However, with air cooling and a combined air-water cooling system, the surface temperature was reduced to 38 °C and 35 °C respectively. These reductions directly influence the efficiency of the photovoltaic panels. The findings of this research conclude that implementing the proposed cooling methods can mitigate the losses in efficiency caused by overheating by approximately 3%. This suggests that rear-side cooling strategies can be a practical approach to enhance the performance of PV panels in hot climate regions.

Suggested Citation

  • Minazhova, Saulesh & Nalibayev, Nurgali & Georgiev, Aleksandar & Bekbayev, Amangeldy & Sarsenbayev, Yerlan, 2026. "CFD analysis of PV panel temperature reduction via cooling methods under high irradiance conditions," Energy, Elsevier, vol. 351(C).
    • Handle: RePEc:eee:energy:v:351:y:2026:i:c:s0360544226009345
    DOI: 10.1016/j.energy.2026.140831
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