Although the good intensity of solar radiation is desirable for a solar PV system, but the power output drops with a rise in its temperature. The open-circuit voltage of PV panel decreases with increase in its temperature, thus lowering the PV effect. Many studies have been carried out by the researcher to tackle this problem, proposing modification in conventional PV system design and utilizing water, air, PCM, and oil as a cooling medium in various cooling systems. Although PCM has fascinating characteristics as a thermal energy storage medium in the solar system, but low thermal conductivity became a barrier in energy conversion. Few studies suggested the use of nanoparticles in PCM to increase its heat transfer rate but very few studies were focused on nano PCM incorporated solar PV system. This paper summarized the researches done so far on nano PCM solar PV system by delineating the methods, and materials involved.
Influence of Artificial and Natural Cooling on Performance Parameters of a Solar PV System: A Case Study