courtneywetts
- 80
- 0
Homework Statement
The density of air under normal conditions is about 1.2 kg/m^3. For a wind speed of 10 m/s find
a) the actual power carried by the wind
b) the maximum possible power (Bert'z limit) extractable by a wind turbine with a blade area of 10 m^2 and
c) the actual power extracted by a wind turbine with a blade area of 10 m^2 and a power coefficient of 0.46
Homework Equations
Maximum extractable wind power = 2a(1-a)^2pv^3
The maximum extractable power is 59%
Total wind power= 1/2pv^3
The Attempt at a Solution
A) total wind= 1/2 (1.2 kg/m^3)(10m/s)^3
= 600W
B) I would use the formula 2a(1-a)^2pv^3
but how do I know what a is?
I'm not sure if I did part a right and am confused on part b