Solving for wind power.

Scroll to the bottom to see typical input values for the variables.

air density (ρ) =0 =0 kilogram/meter^3 |

rotor swept area (A) =0 =0 meter^2 |

coefficient of performance (Cp) =0 =0 |

wind velocity (V) =0 =0 meter/second |

generator efficiency (Ng) =0 =0 |

gear box bearing efficiency (Nb) =0 =0 |

wind power (P) =NOT CALCULATED |

Select an equation to solve for a different unknown

Symbol | Description | Typical values |

ρ | air density | 1.2 kg/m^{3} (sea level) |

Cp | performance coefficient | 0.35 is typical 0.56 is the theoretical maximum known as the Betz limit. |

Ng | generator efficiency | 50 percent to 80 percent. |

Nb | gearbox | 95 percent |

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