blade design competition
DESCRIPTION
Blade Design Competition. Wind in Colorado. Power from the wind. Power in the wind Effect of air density, Effect of swept area, A Effect of wind speed, V. Power in the Wind = ½ρAV 3. R. Wind Speed (V). Most important part of equation Power is a cubic function of wind speed - PowerPoint PPT PresentationTRANSCRIPT
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Blade Design Competition
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Wind in Colorado
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Power from the wind
•Power in the wind • Effect of air density, • Effect of swept area, A• Effect of wind speed, V
R
Power in the Wind = ½ρAV3
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Wind Speed (V) Most important part of
equation Power is a cubic
function of wind speed◦V X V X V◦ 20% increase in wind
speed means 73% more power
◦ Doubling wind speed means 8 times more power
(power =½ρAV3)
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Effect of wind speed on production
Same turbine, two different wind regimes:
◦ Yampa (8.3 mph) 1,200 kWh/year
◦ Sheep Mtn: (18.4 mph) 6,500 kWh/year
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How Wind Energy Works
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Blade Design a Factor
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Voltage Amperage