Wind Turbines

Green energy is more important than ever as oil prices increase along with carbon levels in the atmosphere

. Renewable, clean energy is easier than ever to come by with solar, hydroelectric, and one of the most controversial, wind energy. If you are really splitting hairs, wind energy is actually a form of solar energy since the temperature fluctuations in the atmosphere generate wind currents. The predictability of these currents in some locations makes them great avenues for wind farms. Wind farms and massive turbines are viewed as an eyesore by the communities in which the surround.

A wind turbine works much like a water turbine, with the fluid dynamics of the air pushing the blades of the turbine rather than water. In laymans terms, a W. T. is basically the opposite of a fan since fans push air with the device being hooked up to an electrical generator.

The two basic types of wind generators are horizontal axis and vertical axis. Horizontal axis generators are what most people picture when they think of a typical wind turbine and they look similarly to giant fans. Vertical axis generators tend to be more artistic and can run the gambit in terms of aesthetics. No matter what design is incorporated, the principle remains the same.

Every wind turbine has a blade or rotor that is moved by the moving air, the blade or rotor in turn converts the airs energy into rotational shaft energy. The rotational energy powers a drive train which, through a series of gear boxes, powers a generator which supplies electricity.

Even though wind energy is very environmentally friendly and efficient, there are still concerns about environmental impact from the large structures and the initial up cost of the farms. The main environmental issues arise from concerns about the mortality rate from bats and birds from flying into the blades and rotors. There is also a difficult and excessive process when it comes to transporting the pieces of the turbines. The blades themselves can be hundreds of feet long and immense amount of man power and fuel is required to transport them and set them up. This makes the initial cost of installing and maintaining the turbines very expensive.

Areas that are best suited for wind farms are coastal regions where the air currents are constant. Building the large structures in the ocean keeps land available for other uses, but can also put the powerful blades in the way of seabirds. There are wind farms all over the world supplying very clean energy.

Moving air turbines provide clean, renewable energy to help offset the increasingly damaging fossil fuels and the means by which they are obtained. Oil spills, fracking, drilling, and harmful emissions are offset by clean energy sources like wind technology, solar, and other means. However, even though the technology has increased dramatically in the last few years there is still a long ways to go before green energy sources supply the majority of Earths energy needs.

by: Max Stanford

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