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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
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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 Power in the Wind = ½ρAV3 R
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)
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
Voltage Amperage