Two sites are being considered for wind power generation. On the first site, the wind blows steadily at 7 m/s for 3000 hours per year. On the second site, the wind blows steadily at 10 m/s for 2000 hours per year. The density of air on the both sites is 1.25 kg/m3 . Assuming the wind power generation is negligible during other times. Calculate the maximum power of wind on each site per unit area, in kW/m2 .

Solution :

Given :

Operation time, = 3000 hours per year

Operation time, = 2000 hours per year

The density, ρ =

The wind blows steadily. So, the K.E. =

The power generation is the time rate of the kinetic energy which can be calculated as follows:

Power =

Regarding that . Then,

Power → Power = constant x

Since, is constant for both the sites and the area is the same as same winf turbine is used.

For the first site,

Power,

For the second site,

Power,

explanation:

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