WIND TURBINE: WIND TURBINE FUNCTION
How Wind Turbine Function – More Than Just Hot Air!
Many people believe that our world is in the throes of an energy crisis. Our long
reliance on fossil fuels is stripping the planet of them and their dangerous emissions
have been stripping the ozone layer, resulting in global warming. In order to stop this
deadly cycle, many people are turning to alternative forms of power, such as solar and wind
power. While many people are familiar and comfortable with what solar power is and how it
many people have no idea how a wind turbine works, and assume it must
to how a sailboat is propelled.
A wind turbine is a mechanical device that actually converts a very specific type of solar
energy into usable power. Wind is a solar power, you ask? Yes, as a matter of fact it is!
Wind is a phenomenon that is caused by the uneven heating of the Earth's surface and the
spinning of the planet on its axis. A wind turbine looks much like a household fan. It has
large blades which will rotate in the wind. These blades then spin a low speed shaft that
has a gear at the end. This gear turns another, smaller gear that is connected to a high
speed shaft that is within a generator housing. A magnetic rotor on the high speed shaft
spins inside loops of copper wire that are wound around a core made of iron. As the rotor
spins around the inside of the core it creates something known as "electromagnetic
induction" through the coils and that generates an electrical current.
The most common types of wind turbine are wind mills and the large turbines that some
power companies use to power hundreds and thousands of customers. Smaller, private use
wind turbines are growing in popularity though, as more and more people strive to become
energy independent. Typical industrial wind turbines have blades that are about 390 feet
across and can produce enough electricity to power about 5000 homes. A home turbine's
blades typically range from 8 to 25 feet across.
As our energy crisis deepens, you can expect to see more personal use wind turbines
popping up across the countryside. Environmentally conscious citizens will be looking
to the sun and the wind to power their homes and help reduce the carbon emissions that
are eating away at our ozone. The wind turbine will become a major player in that endeavor.
Wind Turbine - Free Energy