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# ENGR 312 Wind Power

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### ENGR 312 Wind Power

1. 1. Wind Power
2. 2. Wind turbines convert the kinetic energy of wind into electric power. When planning the wind turbine, the two main calculations are: <ul><li>Power capacity of the turbine </li></ul><ul><li>Height of the tower </li></ul>
3. 4. Power capacity of the Turbine can be calculated using P = ½ · б · A · v³ where: б = density of air [ kg/m³] A = swept area [ m²] (A = π r² where r = radius of the blade [ m²]) v = velocity of wind [ m/sec] P = Power of the turbine
4. 6. Required Tower Height The required minimum tower height can be calculated using: H [m] = obstacle height [m] + blade length [m] + 10 m