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An Experimental Investigation of a Novel Low-Cost Photovoltaic Panel Active Cooling System

Author

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  • Alberto Benato

    (Department of Industrial Engineering, University of Padova, 35100 Padova, Italy)

  • Anna Stoppato

    (Department of Industrial Engineering, University of Padova, 35100 Padova, Italy)

Abstract

Renewable energy sources are the most useful way to generate clean energy and guide the transition toward green power generation and a low-carbon economy. Among renewables, the best alternative to electricity generation from fossil fuels is solar energy because it is the most abundant and does not release pollutants during conversion processes. Despite the photovoltaic (PV) module ability to produce electricity in an eco-friendly way, PV cells are extremely sensitive to temperature increments. This can result in efficiency drop of 0.25%/ ∘ C to 0.5%/ ∘ C. To overcome this issue, manufacturers and researchers are devoted to the improvement of PV cell efficiency by decreasing operating temperature. For this purpose, the authors have developed a low-cost and high-performance PV cooling system that can drastically reduce module operating temperature. In the present work, the authors present a set of experimental measurements devoted to selecting the PV cooling arrangement that guarantees the best compromise of water-film uniformity, module temperature reduction, water-consumption minimization, and module power production maximization. Results show that a cooling system equipped with 3 nozzles characterized by a spraying angle of 90 ∘ , working with an inlet pressure of 1.5 bar, and which remains active for 30 s and is switched off for 120 s, can reduce module temperature by 28 ∘ C and improve the module efficiency by about 14%. In addition, cost per single module of the cooling system is only 15 €.

Suggested Citation

  • Alberto Benato & Anna Stoppato, 2019. "An Experimental Investigation of a Novel Low-Cost Photovoltaic Panel Active Cooling System," Energies, MDPI, vol. 12(8), pages 1-24, April.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:8:p:1448-:d:223164
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    References listed on IDEAS

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    Cited by:

    1. Libo Zhang & Qian Du & Dequn Zhou, 2021. "Grid Parity Analysis of China’s Centralized Photovoltaic Generation under Multiple Uncertainties," Energies, MDPI, vol. 14(7), pages 1-19, March.
    2. Ali Sohani & Mohammad Hassan Shahverdian & Hoseyn Sayyaadi & Siamak Hoseinzadeh & Saim Memon & Giuseppe Piras & Davide Astiaso Garcia, 2021. "Energy and Exergy Analyses on Seasonal Comparative Evaluation of Water Flow Cooling for Improving the Performance of Monocrystalline PV Module in Hot-Arid Climate," Sustainability, MDPI, vol. 13(11), pages 1-12, May.

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