Answer:
shaft power 0.2034 MW
Explanation:
given details
radius of turbine = 25 m
average wind velocity = 12 m/s
density of air = 1.20 kg/m^2
Total power is calculated as
[tex]P = \frac{1}{2} \rho AV^3[/tex]
[tex]= \frac{1}{1} \rho \pir^2 V^3[/tex]
[tex]= \frac{1}{2} 1.20\times \pi \times 625\times 12^3 = 2034,720 watt[/tex]
P = 2.034 MW
shaft power [tex] = \eta \times P[/tex]
[tex]= 0.10 \times 2.034[/tex]
= 0.2034 MW