Difference between revisions of "Wind Energy - Physics"
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<math>P=\frac{1}{2}\rho A v^3</math><br> | <math>P=\frac{1}{2}\rho A v^3</math><br> | ||
| − | It varies proportional to air density <math>\rho</math>, to the crossed area ''A ''and to the cube of | + | It varies proportional to air density <math>\rho</math>, to the crossed area ''A ''and to the cube of wind velocity ''v''. |
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| + | The Power ''P ''is the kinetic energy | ||
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| + | <math>E=\frac{1}{2}mv^2</math> | ||
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| + | of the air-mass crossing the area ''A ''during a time interval | ||
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| + | <math>\dot{m}=A \rho \frac{dx}{dt}=A\rho v</math> | ||
Revision as of 17:42, 16 May 2011
Wind Power
The power P of a wind-stream, crossing an area A with velocity v is given by
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle P=\frac{1}{2}\rho A v^3}
It varies proportional to air density Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \rho} , to the crossed area A and to the cube of wind velocity v.
The Power P is the kinetic energy
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle E=\frac{1}{2}mv^2}
of the air-mass crossing the area A during a time interval
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \dot{m}=A \rho \frac{dx}{dt}=A\rho v}
