Problem 1 The aerodynamic force exerted on each blade of a three-blade wind turbine is 1000 N. At the given conditions, the lift coefficient is 0.90. If the center of gravity of the blade is at 25 m from the hub, compute the following: a) The torque generated by the blades. b) The blades' power at 20 r/min. Problem 2 A three-blade wind turbine captures 1.8 MW from wind moving horizontally with respect to the plane. If the upwind speed is 16 m/s and the coefficient of performance is 18%, compute the length of the blade. Assume the density of air is 1 kg/m³.
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Calculate the aerodynamic force on each blade: 1000 N * 0.90 = 900 N Show more…
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