S. ARIFA SULTANAC. DHEEPIKAN. GIRIJA
➢ COMPONENTS USED
1) WIND VANE AND ANEMOMETER
4) GEAR BOX
➢ WORKING MECHANISM
➢ WIND POWER FOR DOMESTIC USE
➢ WIND POWER IN INDIA
A windmill is a machine that converts the energy of wind into rotational energy by means of vanes called sails. Originally, windmills were developed for milling grain for food production. In the course of history, the windmill machinery was adapted to many other industrial uses. An important non-milling use is to pump water, either for land drainage or to extract groundwater.
A wind turbine is a device that converts kinetic energy from the wind, also called wind energy, into mechanical energy; a process known as wind power. If the mechanical energy is used to produce electricity, the device may be called a wind turbine or wind power plant. If the mechanical energy is used to drive machinery, such as for grinding grain or pumping water, the device is called a windmill or wind pump. Similarly, it may be referred to as a wind charger when used for charging batteries.
The result of over a millennium of windmill development and modern engineering, today's wind turbines are manufactured in a wide range of vertical and horizontal axis types. The smallest turbines are used for applications such as battery charging or auxiliary power on boats; while large grid-connected arrays of turbines are becoming an increasingly important source of wind power-produced commercial electricity.
|Illustration of a wind turbine. |
|Connection to electric grid |
|Access ladder |
|Wind orientation control |
|Rotor blade |
|Blade pitch control |
|Rotor hub |
Increasing the understanding and adoption of wind power has become one of the goals for the U.S. Department of Energy and renewable energy experts. The technology converts the kinetic energy inherent in wind flow into electricity that communities can use to power homes and businesses. Although designs vary, about a half dozen parts go into the construction of the more popular horizontal axis wind turbines.
Wind Vane and Anemometer
A turbine wind vane monitors wind direction while its anemometer measures wind speed. Both these devices relay information that the controller, a computer inside the turbine, uses to position and start the turbine rotor.
The wind turbine rotor includes the hub and propeller-like blades that turn as the wind blows. Most turbine designs feature three aerodynamically designed blades made of fiberglass and plastic. When the wind blows, the blades lift, rotate and turn the rotor, which creates mechanical energy.
In some wind turbine designs, the rotor turns about two...