Hai.. I am sowmya i want to do my project in solar air cooler with autotracking. would you please give me bthe details about this project that will help me to do my project succesfully.
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Solar energy can be used directly by the photovoltaic method or the thermal method. Energy conversion devices, which are used to convert sunlight into electricity by using the photovoltaic effect, are called solar cells or photovoltaic cells. When sunlight or any other light strikes a surface of material (conductors or semiconductors), the electrons present in the valence band absorb energy and, upon being excited, jump to the conduction band and release. These highly excited non-thermal electrons diffuse and some reach a junction where they accelerate into a different material. This generates an electromotive force and, therefore, part of the light energy is converted into electrical energy. The photovoltaic effect is the creation of voltage or electric current in a material after exposure to light.
It can be understood in the following video: