比推力油耗计算器 — 公式
## Thrust Specific Fuel Consumption
TSFC measures how efficiently a jet engine converts fuel into thrust. Lower values indicate better fuel economy.
### Formula
**TSFC = fuel_flow / Thrust**
where fuel_flow is in kg/h and thrust in kN for the common industry unit of kg/(kN·h). Modern high-bypass turbofans achieve TSFC values around 15-20 g/(kN·s). Turbojet engines are less efficient at about 25-30 g/(kN·s).
TSFC measures how efficiently a jet engine converts fuel into thrust. Lower values indicate better fuel economy.
### Formula
**TSFC = fuel_flow / Thrust**
where fuel_flow is in kg/h and thrust in kN for the common industry unit of kg/(kN·h). Modern high-bypass turbofans achieve TSFC values around 15-20 g/(kN·s). Turbojet engines are less efficient at about 25-30 g/(kN·s).
计算示例
A turbofan engine producing 100 kN of thrust while burning 2500 kg/h of fuel.
- TSFC = 2500 kg/h ÷ 100 kN = 25 kg/(kN·h)
- Convert to SI: 25 / 3.6 = 6.944 g/(kN·s)