making an anemometer. power from the wind power in the wind power in the wind effect of air density,...
TRANSCRIPT
Measuring the WindMaking an anemometer
Wind in Colorado
How Wind Energy Works
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
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
“Micro-Siting” to maximize generation at a site
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