Sunday, August 23, 2009

A Basic Introduction To How Wind Turbines Work

By Jim Samposzi

Since the incremental decline of the world's ecological state, a lot of concerned individuals have been hunting for an alternative source of power. Many have found very promising sources but most are not adequate enough to completely replace other, more ecologically damaging methods of harnessing electricity. Our societies still depend on generating power by way of hurting our ozone layer, and air quality.

Wind turbines are pieces of equipment that gather the force of winds to turn blades. This turning component, known as the rotor, passes the built up wind through a shaft and to the gearbox, and the gearbox, sends this force into a generator. This process takes place easily and efficiently, but is not powerful enough to generate adequate energy to power everything we need. Wind turbines usually provide energy to farms for automated grain machines and many other machines that depend on a generator 24-7. Wind turbines are in the thousands in the western parts of the country, primarily in Wyoming and areas in California. They are seen in the hundreds sometimes in fields and remote areas throughout the countryside.

The blades on these devices or pitched. This is done for if the blades were not pitched, they would be unable to turn with a light wind; this would give way to a loss of possible energy missed during these small-wind periods. In addition, these blades will not even start up with winds that are above 55 mph. The reason for this is to reduce the chances of damage to the unit. In addition, a brake is included on the wind turbine which stops the blades if the wind is too lofty. In addition, this mechanism, or the controller, does not turn on in winds under eight mph because it would be pointless.

Wind turbines are simple in design but rather amazing in capability. Wind turbines all have what is called a yaw drive and yaw motor. The yaw motor and yaw drive allow the rotor to position and re-position it when the direction of wind changes. This function gives way to the best harnessing of power; if wind turbines did not have this, they would sit idol at the slightest change in wind direction.

This generation of power has a few uses but are used mostly by individuals in rural areas. Though, these machines are rather loud and residents living close to one have been reported to have complained about them. And, in other areas, some of these large cells of turbines have several of these turbines that are inoperable and therefore useless. Many community members are going before city council to get rid of them, while many owners of these fields have no clue where to relocate the wind turbines to.

Although some turbines are unused and just sitting there; other professionals continue to build new and improved wind turbines that create more energy than the previous types. A Canadian man, for instance, has come up with a wind turbine that can generate 50 kilowatts of electricity! This is a huge milestone and it is said that even this model can be improved.

About the Author:

No comments: