Abstract
The purpose of this study is to improve the electrical performance of the photovoltaic (PV) module by using the sunlight concentration and cooling technique. Three identical polycrystalline PV modules were used in the experiments; ordinary PV module, concentrated PV module (CPV) and CPV system with cooling technique. The experiments were performed in a clear day on September 24th in Duhok, Iraq. The cooling system is developed by the water flowing on the front of the PV panel. The operating temperature of the CPV is kept very low by the cooling system, i.e., 30–35 °C. The maximum power output of CPV system and CPV system with cooling compared with the reference PV module is improved by the rates of 8% and 18.5%, respectively. In addition, the maximum percentage increase in the electrical efficiency of the CPV system and CPV system with cooling technique is 6.5% and 17.7%, respectively. The CPV with the cooling system delivered more energy than the other two cases. According to the economic analysis of a typical domestic use, the payback period is 3.77, 3.52, and 3.23 years for the stand-alone PV module, CPV system and the CPV with active cooling system, respectively.
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