An 8 m/s wind enters a wind turbine rotor with a diameter of 36 m. Assume the air density 1.2 kg/m3 Calculate: The power of incoming wind, The maximum power extracted by the wind turbine, If the gearbox, generator and electrical transmission and processing efficiencies are 0.85, 0.96 and 0.95, respectively, what is the turbine effective converted power

Q.47 A lawn sprinkler as shown in figure has arm fitted with nozzle of diameter 1.0 cm and discharges water at the rate of 12 m/sec velocity. Determine the torque required to hold the sprinkler and speed of steady state if it is free to rotate. 12 nvsee 12 in/sec 20.cm 30 cm

Send the correct answer. If diagram required please send with that. Thanks.

For solution of this problem also sketch velocity triangles and label it. A rotodynamic impulse turbine was used to develop power. In an impulse stage the mean diameter of the blade ring is 900 mm and the speed of rotation is 3500 1.p.m The nozzle angle is 22º and the steam exits from the nozzles with a velocity of 350 m / s. Assuming the blade velocity coefficient as 0.85 and also suppose that the blades are symmetric When the axial thrust on the blades is 150 N. Determine the power developed.