Question

What is the total power produced if the turbine diameter is 120m?

(a) 0.277 KW

(b) 1.224 KW

(c) 4.28 KW

(d) 0.89 KW

This question was posed to me in final exam.

Question is taken from Velocity and Power from Wind topic in division Wind Energy of Energy Engineering

Answer 1

Right answer is (a) 0.277 KW

To explain I would say: Total power P,

  P = 0.245 X (πD^2/4)

  = 0.245 X (π (120)^2/4)

  = 0.277 KW.