Kuinka laskea Wind Turbine Output
Mikä on Wind Turbine Output?
Wind turbine power output depends on wind speed, blade area, and efficiency. Power increases with the cube of wind speed.
Kaava
Calculate: P = 0.5 × ρ × A × v³ × C_p
- P
- 0 — 0
- A
- swept area — swept area
Vaiheittainen opas
- 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
Ratkaistut esimerkit
Syöte
100 m rotor (7850 m² area), average wind 10 m/s, C_p=0.4
Tulos
Average power ≈ 1.9 MW
Typical utility turbine
Yleisiä virheitä vältettäväksi
- ✕Using peak power output instead of average capacity factor
- ✕Neglecting wake effects between turbines
Usein kysytyt kysymykset
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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