Solving for wind power.
Scroll to the bottom to see typical input values for the variables.
air density (ρ)
rotor swept area (A)
coefficient of performance (Cp)
wind velocity (V)
generator efficiency (Ng)
gear box bearing efficiency (Nb)
wind power (P)
= NOT CALCULATED
|Solve for wind power.|
|Solve for air density.|
|Solve for swept area of the rotor, propeller or blades.|
|Solve for coefficient of performance.|
|Solve for wind speed.|
|Solve for generator or alternator efficiency.|
|Solve for gear box bearing efficiency.|
|ρ||air density||1.2 kg/m3 (sea level)|
|Cp||performance coefficient||0.35 is typical
0.56 is the theoretical maximum known as the Betz limit.
|Ng||generator efficiency||50 percent to 80 percent.|
by Jimmy Raymond
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