A propeller type wind turbine has following data: Speed of free wind…

Previous year question for Renewable Energy.

Question

A propeller type wind turbine has following data:

Speed of free wind at a height of $10\text{ m} = 12\text{ m/s}$, Air density $= 1.226\text{ kg/m}^3$, $\alpha = 0.14$, height of tower $= 100\text{ m}$, diameter of rotor $= 80\text{ m}$, wind velocity at the turbine reduces by $20\%$, generator efficiency $= 85\%$.

Find:

i. Total power available in wind.

ii. Power extracted by the turbine

iii. Electrical power generated

iv. Axial thrust on the turbine

v. Maximum axial thrust on the turbine

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