Question

A horizontal axis windmill has 5 blades. During regular operation of this windmill , the number of blades that will capture the energy in the wind =

Answer 1

A horizontal axis windmill has 5 blades. During regular operation of this windmill , the number of blades that will capture the energy in the wind =

Answer 2

The answer for your question completely depends on the speed of the wind and its density. But there is a chance of producing more energy when the height of the turbine is increased accordingly.

You can calculate the power of a wind turbine by using the formula

Power=kCp1/2 ρAV3

Where the  

K=0.000133

P=power output expressed in kilowatts

Cp=Maximum Power coefficient

ρ=Air density

A=Rotor Swept area

V=wind speed