Kinetic Energy Drives the Wind Turbine

Posted by Ann on August 19, 2009

Wind turbines are machines that convert the energy of the wind into a form that can be used as mechanical and electrical energy.  The harnessing of the wind has been going on for centuries in many different countries through the simple form of the early wind turbine, the windmill.  Sometimes this energy is used to operate machinery such as a grind stone or a pump.  Other times it is converted into electricity.  This form of energy is useful in the continued efforts to combat environmental issues such as the emission of gases such as carbon dioxide as well as the continued struggle against global warming.  This is done so in a way that still allows everyone the conveniences of the modern lifestyle.

There are two different kinds of wind turbines, distinguished apart from each other by the mechanics of the way in which the blades of the turbine rotate.  Those that operate on horizontally based axis are the most common type, however those rotating vertically are used from time to time.  They are also distinguished by their locations, either offshore, on shore or aerial.  More and more frequently the are being used in combination with solar panels as well.  Those of the horizontal type have a generator, and they must face the wind.  Some have sensors which will move the face of the turbine according to the direction in which the wind is blowing at any given time.  These large towers do produce a bit of turbulence.

Those that are located on the down side of the wind, do not need the sensor, but usually have blades that bend with the pressure.  These are less common than those that are built up-wind.  These are designs that were fist developed throughout Europe and usually have four blades per each turbine.  The early versions of this kind of energy production are located throughout the Netherlands, as well as many throughout the United States, and they have been providing this alternative energy supply for hundreds of years.

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