Solving for air density.
Scroll to the bottom to see typical input values for the variables.
|wind power (P)||=||0||=||0||watt|
|rotor swept area (A)||=||0||=||0||meter^2|
|coefficient of performance (Cp)||=||0||=||0|
|wind velocity (V)||=||0||=||0||meter/second|
|generator efficiency (Ng)||=||0||=||0|
|gear box bearing efficiency (Nb)||=||0||=||0|
|air density (ρ)||=||HAS NOT BEEN 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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