Full-Scale Design, Implementation and Testing of an Innovative Photovoltaic Cooling System (IPCoSy)

Ryan Bugeja (), Luciano Mule’ Stagno and Ioannis Niarchos
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Ryan Bugeja: Institute for Sustainable Energy, University of Malta, MXK 1531 Marsaxlokk, Malta
Luciano Mule’ Stagno: Institute for Sustainable Energy, University of Malta, MXK 1531 Marsaxlokk, Malta
Ioannis Niarchos: Institute for Sustainable Energy, University of Malta, MXK 1531 Marsaxlokk, Malta

Sustainability, 2023, vol. 15, issue 24, 1-19

Abstract: The field efficiency of silicon-based solar cells is dependent on various factors including temperature. An increase in temperature results in a reduced efficiency of a magnitude dependent on the solar cell’s temperature coefficient. Furthermore, an increase in solar cell temperatures beyond levels specified by the manufacturer will result in a reduced lifetime and an increased probability of potential induced degradation and even failure. Researchers have created different cooling technologies to keep the solar cells’ operating temperatures to a minimum. However, no cooling technology in the literature is adequate for both land and offshore PV installations. A patented Innovative Photovoltaic Cooling System (IPCoSy) is presented in this paper. Previously published results have confirmed the cooling effect and feasibility using small-scale prototypes. This paper presents the design challenges and results of the full-scale implementation. The full-scale prototypes are the same size as commercially available photovoltaic modules, making them easier to integrate in the current market. Therefore, this research presents the results of testing full-scale prototypes while addressing challenges related to structural integrity and fluid dynamics. The findings of this research showed that the positive effects of this cooling technology range from more than a 9% increase in PV electrical energy yield, and thermal efficiencies of up to 56%. Finally, the outcome of this research will contribute towards the United Nations’ sustainable development goal of affordable and clean energy through direct operational efficiency improvements in PV systems, as well as the enhanced tapping of solar energy for renewable thermal energy production.

Keywords: solar energy; photovoltaics; cooling technology; photovoltaic thermal; thermal energy (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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