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A nacelle / n ə ˈ s ɛ l / is a cover housing that houses all of the generating components in a wind turbine, including the generator, gearbox, drive train, and brake assembly. [1]
An example of a wind turbine, this 3 bladed turbine is the classic design of modern wind turbines Wind turbine components : 1-Foundation, 2-Connection to the electric grid, 3-Tower, 4-Access ladder, 5-Wind orientation control (Yaw control), 6-Nacelle, 7-Generator, 8-Anemometer, 9-Electric or Mechanical Brake, 10-Gearbox, 11-Rotor blade, 12-Blade pitch control, 13-Rotor hub
The task of orienting the rotor into the wind was a complicated issue already for historical windmills. The first windmills able to rotate in order to "face" the wind appeared in the mid-18th century. [1] Their rotatable nacelles were mounted on the main structure of the windmill using primitive wooden gliding bearings lubricated with animal fat.
The Windshaft is a part in a windmill that carries the sails and also the brake wheel (Smock and Tower mills, and in some Post mills) or the head wheel and tail wheel in a Post Mill. Windshafts can be wholly made of wood, or wood with a cast iron poll end (upon where the sails are mounted) or entirely of cast iron. [1]
Around the time of World War I, American windmill makers were producing 100,000 farm windmills each year, mostly for water-pumping. [15] By the 1930s, use of wind turbines in rural areas was declining as the distribution system extended to those areas. [16] A forerunner of modern horizontal-axis wind generators was in service at Yalta, USSR, in ...
Schematic representation of a gear rim with teeth on the inner side. The gear rim meshes with four yaw drive pinions.. The gear-rim and the pinions of the yaw drives are the components that finally transmit the turning moment from the yaw drives to the tower in order to turn the nacelle of the wind turbine around the tower axis (z axis).
In a windmill, a Crown Wheel is an auxiliary gear on the Upright Shaft. Fantail A fantail is a small windmill which is used to keep a windmill facing into the wind automatically. Great Spur Wheel The Great Spur Wheel is carried on the Upright Shaft. It drives the Stone Nuts. Millstones driven by the Great Spur Wheel can be either Overdrift or ...
The windmills at Kinderdijk in the village of Kinderdijk, Netherlands is a UNESCO World Heritage Site. A windmill is a structure that converts wind power into rotational energy using vanes called sails or blades, by tradition specifically to mill grain (), but in some parts of the English-speaking world, the term has also been extended to encompass windpumps, wind turbines, and other applications.
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