We honestly haven't gone over this in class and I have no idea why my prof wants us to do this question... so I'm given it a go and come up empty. NEED HELP!(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

Calculate the maximum theoretical power from a wind turbine if the radius of the vane area is 18.1 m and the wind speed is 8.3 m/s. Express the answer in kilowatts.

2. Relevant equations

I'm thinking, from what I've found on the internet, that the correct equation would be either

P = 0.5 x rho x A x V^{3}

or

P = 0.5 x rho x A x Cp x V^{3}x Ng x Nb

Assuming: Rho=1.225 kg/m^{3}, Cp=.59, Ng=1, and Nb=1

and of course A=pi*r^{2}

3. The attempt at a solution

I've tried each method and I've gotten the wrong answer each time.

For the first I get 360.451 kW

for the second I get 212.66 kW

Anyone want to give me some help

It'd be much appreciated!

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# Homework Help: Theoretical power from wind turbine

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