Cooling PV modules using phase change material

Abstract

High temperature can result in the degradation of any device (solar, electrical, electronics, etc.). For example, in the case of a silicon photovoltaic (PV) system, approximately 25% of the incoming concentrated solar energy will be converted into electrical energy and the remaining is converted into waste heat which contributes to elevate the cell temperature and so decreases its efficiency. The main objective of this project is to emphasize the Phase Change Material (PCM) cooling technique. This kind of material is known for its high storing capacity of the temperature which will enhance the cycle lifetime of any device. In this project, a direct application on a PV panel was carried out, an organic PCM is tested in order to study its properties and capacity of absorption. The results shows that around 13% of the energy can be saved. Another objective of this project consists of a numerical validation of the modeling used to determine the temperature of a photovoltaic panel. This validation allows us to use this model in order to decide on the efficiency of any PCM to be used.