Case study on the efficiency improvement of photovoltaic panels by cooling

The paper presents a numerical study of the operation of photovoltaic panels integrated in ventilated facades of the buildings. In these circumstances, the position of the panels is fixed all the time and the possibility of the raising of the conversion efficiency is analysed from the point of view of the operating temperature of the photovoltaic cells. The model and the functioning parameters are obtained using TRNSYS software. The solution proposed for cooling the panels consistsin using waterheat exchangers attached to the backside of the photovoltaic panel.