The wind turns the propeller-such as the turbine blades around a rotor, which turns a generator, producing electricity.
FREMONT, CA: Wind turbines work on a basic principle: instead of utilizing electricity to produce wind like a fan, wind turbines utilize the wind to produce electricity. The wind turns the propeller-such as the turbine blades around a rotor, which turns a generator, producing electricity.
The wind is a form of solar energy because of a combination of three simultaneous events:
1.The sun irregularly heats the atmosphere
2.The unevenness of the earth's surface
3.The revolution of the earth.
Wind flow models and speeds vary highly across the countries and are modified by water bodies, vegetation, and variance in terrain. Humans utilize this wind flow, or motion energy, for numerous purposes: sailing, flying a kite, and even inducing electricity.
The terms "wind energy" and "wind power" explain how the wind is utilized to produce mechanical power or electricity. This mechanical power can be utilized for certain tasks (like grinding grain or water pump), or a generator can transform this mechanical power into electricity.
A wind turbine turns wind energy into electricity through the aerodynamic force from the rotor blades, which work as an aeroplane wing or helicopter rotor blade. When wind flows over the blade, the air pressure on one edge of the blade reduces. The variance in air pressure across the blade's two sides creates lift and drag.
The force of the lift is more powerful than the drag and thus induces the rotor to spin. The rotor connects to the generator directly (if it's a straight drive turbine) or with a shaft and a sequence of gears (a gearbox) that accelerate the rotation and enable a physically smaller generator. This transformation of aerodynamic force to the rotation of a generator forms electricity.
