Question

600 kg of air moving at a speed of 72 km-h-1
impinges on the vanes of a windmill
in every minute.
If the efficiency of windmill is 80%, find the electric
power developed by the windmill. ​

Answer 1

Answer:

k = 0.000133 A constant to yield power in kilowatts. (Multiplying the above kilowatt answer by 1.340 converts it to horse- power [i.e., 1 kW = 1.340 horsepower]). The rotor swept area, A, is important because the rotor is the part of the turbine that captures the wind energy.

Answer 2

Answer:

k = 0.000133 A constant to yield power in kilowatts. (Multiplying the above kilowatt answer by 1.340 converts it to horse- power [i.e., 1 kW = 1.340 horsepower]). The rotor swept area, A, is important because the rotor is the part of the turbine that captures the wind energy.

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