How+they+work

In the wind mill, the turbine blades are designed to capture the kinetic energy in wind. When the turbine blades capture wind energy and start moving, it activates the rotor to a generator. The generator turns that rotational energy into electricity. The electricity is sent through transmission and distribution lines to electricity outlets.

FINDING THE WIND TURBINE POWER-

//**where:**// m = mass (kg) (1 kg = 2.2 pounds) V = velocity (meters/second) (meter = 3.281 feet = 39.37 inches)
 * 1. kinetic energy (joules) = 0.5 x m x V2**

//**where:**// P = power in watts (746 watts = 1 hp) (1,000 watts = 1 kilowatt) rho = air density (about 1.225 kg/m3 at sea level, less higher up) A = rotor swept area, exposed to the wind (m2) V = wind speed in meters/sec (20 mph = 9 m/s) (mph/2.24 = m/s)
 * //2. Power in the area swept by the wind turbine rotor:// P = 0.5 x rho x A x V****3**

3. //**Wind Turbine Power:**// **P = 0.5 x rho x A x Cp x V3 x Ng x Nb** P = power in watts (746 watts = 1 hp) (1,000 watts = 1 kilowatt) rho = air density (about 1.225 kg/m3 at sea level, less higher up) A = rotor swept area, exposed to the wind (m2) Cp = Coefficient of performance (.59 {Betz limit} is the maximum thoretically possible, .35 for a good design) V = wind speed in meters/sec (20 mph = 9 m/s) Ng = generator efficiency (50% for car alternator, 80% or possibly more for a permanent magnet generator or grid-connected induction generator) Nb = gearbox/bearings efficiency (depends, could be as high as 95% if good)
 * //where://**