Abstract: The efficient use of solar photovoltaic power generation is of great significance to the realization of
the " dual carbon" goal in the future，and this paper proposes an experimental scheme to reduce the
temperature of photovoltaic cells by using a spray cooling system with pressure-swirl atomizers as the main
body，so as to improve the power generation performance of photovoltaic cells．A set of spray-cooled photovoltaic
cell test benches was built to explore the effects of nozzles on spray cone angle，flow rate，droplet size and
velocity under different pore sizes and pressures，and the spray characteristics of the nozzles were clarified．The
spray cooling technology is used to cool the photovoltaic cells，improve the efficiency of power generation，and
reduce the net cost of photovoltaic power generation． This comprehensive experiment creates a practical
application platform，which effectively helps students enhance their understanding of fluid mechanics，heat
transfer and photovoltaic cell thermal management，and promotes the construction of disciplines．
