Wind Turbines
Wind turbines are built to catch the wind's kinetic energy. Traditional windmills seen on American farms were often
used to pump water from wells. Modern wind turbines use fewer rotor blades because material fatigue and
breakage during wind gusts are a significant problem.
The energy content of wind is proportional to the third power of wind speed. Turbines with many blades or very
wide blades, will be subject to very large forces, when the wind blows at a hurricane speed.
Wind turbine manufacturers have to certify that their turbines are built, so that they can withstand extreme winds
which occur, say, during 10 minutes once every 50 years.
For more information, see:
http://www.windpower.org/en/tour/design/index.htm
Magnetic Levitation Wind Turbine
http://www.inhabitat.com/2007/11/26/super-powered-magnetic-wind-turbine-maglev/
Next
Wind turbines are built to catch the wind's kinetic energy. Traditional windmills seen on American farms were often
used to pump water from wells. Modern wind turbines use fewer rotor blades because material fatigue and
breakage during wind gusts are a significant problem.
The energy content of wind is proportional to the third power of wind speed. Turbines with many blades or very
wide blades, will be subject to very large forces, when the wind blows at a hurricane speed.
Wind turbine manufacturers have to certify that their turbines are built, so that they can withstand extreme winds
which occur, say, during 10 minutes once every 50 years.
For more information, see:
http://www.windpower.org/en/tour/design/index.htm
Magnetic Levitation Wind Turbine
http://www.inhabitat.com/2007/11/26/super-powered-magnetic-wind-turbine-maglev/
Next
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