In real practical PV panel operation a major part absorption of solar radiation is wasted as a heat energy which causes an elevated operating temperature. It is necessary to cool the PV panel by extracting the extra heat generated from the PV panel in some way. The aim of this present study is to determine the optimum number of DC fan as a cooling medium required for a unit PV panel. A formulation equation of heat extraction for selected type PV panel was carried out to calculate the required airflow of DC fan. Besides, temperature distribution subsequently analysed in outdoor weather conditions throughout a day as the purpose to calculate to heat needed to be removed. Based on the measurement and calculation the results clearly show how the capability of DC fan plays its role in extract the large amount of heat produced through PV panel. Results revealed that the number of DC fan for a selected unit of PV panel is determined by two units. In conclude, high rate of heats transfer fluid removes too much heat causes the temperature of the PV panel decreases, hence reducing the heat loss.
