Ako vypočítať Wind Turbine Output
Čo je Wind Turbine Output?
Wind turbine power output depends on wind speed, blade area, and efficiency. Power increases with the cube of wind speed.
Vzorec
Calculate: P = 0.5 × ρ × A × v³ × C_p
- P
- 0 — 0
- A
- swept area — swept area
Sprievodca krok za krokom
- 1Calculate: P = 0.5 × ρ × A × v³ × C_p
- 2ρ = air density (≈1.225 kg/m³), A = swept area, v = wind speed, C_p = efficiency (~0.35-0.45)
- 3Typical 2-5 MW turbine: 5-15 GWh/year depending on wind resource
Worked Examples
Vstup
100 m rotor (7850 m² area), average wind 10 m/s, C_p=0.4
Výsledok
Average power ≈ 1.9 MW
Typical utility turbine
Common Mistakes to Avoid
- ✕Using peak power output instead of average capacity factor
- ✕Neglecting wake effects between turbines
Frequently Asked Questions
Why is wind speed raised to the third power?
Power proportional to kinetic energy (½mv²) and flow rate; combined gives v³ dependence.
How much area does a wind turbine need?
Large utility turbines need 2-5 acres minimum spacing; smaller residential turbines 0.5 acres.
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