Heat transfer characteristics of single-phase spray cooling on the back of tilted photovoltaic panel

Affected by the increasingly tense global energy situation, solar energy, as an extremely important renewable energy, has been highly concerned and developed around the world. Photovoltaic cells are important devices that convert solar energy directly into electrical energy, but their photoelectric conversion efficiency is relatively low. The improvement of photoelectric conversion efficiency has always been one of the research projects focuses in the photovoltaic field. In this paper, efficient spray cooling technology is applied to photovoltaic panels, and its cooling characteristics were deeply studied by simulation. The wall temperature distribution and liquid film flow characteristics under different inclination angles of the cooled wall were analyzed and discussed in depth. The results show that the influence of gravity is not conducive to the spray cooling performance of the tilted cooled wall, but the cooling effects can be improved to a certain extent by changing the position of the nozzle relative to the cooled wall.