A Three-Blade Wind Turbine with a 100 M Rotor Diameter

question 4

Essay

A three-blade wind turbine with a 100 m rotor diameter operates with a tip
speed ratio of 10.
(a) What is the efficiency?
(b) What fraction of the Betz limit is achieved?
(c) What is the actual power output in kW for a wind speed of 11 m/s?
(d) For the wind speed in part (c), what is the actual blade tip velocity?
(e) For the wind speed in part (c), how long does it take the rotor to make one rotation?

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