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| WIND ENERGY
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| Introduction |
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The electrical energy can be generated by wind energy by utilizing the kinetic energy of wind. The wind energy which is an indirect source of energy can be used to run a wind mill which in turn drives a generator to produce electricity.
Wind mills are classified into two types
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| HORIZONTAL AXIS WIND TURBINE |
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Horizontal axis wind turbines have the main rotor shaft running horizontally.This system consists of a tower mounted two bladed or multi bladed rotor facing the wind, rotating around a horizontal axis and turning an electrical generator.The Blades are generally made of composite material, usually fibre reinforced plastic (FRP) because of its high strength and light weight. Wind mills are manufactured with a capacity from a few kilowatts to several megawatts in Europe, the USA, and other parts of the world including India.
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| VERTICAL AXIS WIND TURBINE |
Vertical axis wind turbines have the main rotor shaft running vertically. The tower construction is simple here because the generator and gear box can be placed at the bottom, near the ground.Vertical axis wind turbine can be classified into two types
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