Predicting the Characteristics of a Special Designed Photovoltaic Thermal Collector Absorber (PVT)

摘要

The main motivation of combining the Photovoltaic (PV) and Thermal collector(T) to be Photovoltaic/Thermal collector systems (PV/T) is to increase the efficiency of the collectors. It is known fact that the efficiency of the Photovoltaic decreases when the ambient temperature increased and vice verse. The system works by absorbing the heat gain from the sun using the Photovoltaic panel and convert it to electrical energy. Some of this energy is then transfered to the absorber collector underneath the Photovoltaic panel as a waste energy. Special conFigureurations of absorber collector has been designed, investigated and compared before it is inserted underneath the Photovoltaic panel which is represented as flat plate polycrystalline silicon with single glazing sheet. Simulation has been performed to determine the absorption of the heat that influences the total efficiency of the system under certain range of conditions. The simulation results shows that it can generates the total efficiency of 63.55% with electrical efficiency of 11.39% at ambient temperature set between 21 to 36°C, fluid flow rate at 0.02 kg/s and solar radiation between 700 to 800 W/m~2.