An investigation on the effect of the radiation flux reflected on the performance of photovoltaic panels

Photovoltaic panels receive, solar radiation energy, and directly converted into electrical energy. The aim of this study is to evaluate the changes in the electrical power and electrical efficiency by changing environmental condition that photovoltaic cells installed in. The experiment is done in Shahrekord, with a height of 2045 meters. The electrical output power and the efficiency over the four days continuously compared with the same condition, that, three days of this, is in a completely same condition and one day by installing a foil with the size of 12 square meters on the ground. The results show that with installing reflective foil, the radiant flux affects on the surface temperature. By cooling on the panel surface, the electrical power output is enhanced. The efficiency aluminum reflector is used when the maximum at least 5.37 % of the 13.11 percent. While on other days without reflector with the same conditions, minimum and maximum values 11.27 and 15.99 percent respectively.