Як розрахувати Wind Turbine Output
Що таке Wind Turbine Output?
Wind turbine power output depends on wind speed, blade area, and efficiency. Power increases with the cube of wind speed.
Формула
Calculate: P = 0.5 × ρ × A × v³ × C_p
- P
- 0 — 0
- A
- swept area — swept area
Покрокова інструкція
- 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
Розв'язані приклади
Введення
100 m rotor (7850 m² area), average wind 10 m/s, C_p=0.4
Результат
Average power ≈ 1.9 MW
Typical utility turbine
Поширені помилки
- ✕Using peak power output instead of average capacity factor
- ✕Neglecting wake effects between turbines
Часті запитання
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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