Effect of Water Cooling on the Energy Conversion Efficiency of PV Cell
Keywords:Water Absorption Sponge, Energy conversion efficiency, Water cooling.
By receiving the solar irradiance, the photovoltaic solar cell generates electricity. During the absorption of solar radiations, there is a considerable increase in cell operating temperature, that effects upon the electrical efficiency of photovoltaic (PV) cell. On the back side of PV panel, water absorption sponge is fixed, the adverse effect can be avoided and wet condition is maintained with the help of passage of water by wipe. Main purpose of this effort is to increase the electrical conversion efficiency by reducing the solar cell’s temperature. Experiments were performed in order to observe the effect of cooling on the efficiency of PV solar cell. It was found that there is a linear relationship between temperature and efficiency of the PV module. From the statistical data it was found that the water cooling drops the temperature of PV panel by 4-5oC, which significantly increase the efficiency from 7 to 12%.
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