How are aircraft CO2 emissions calculated?
Aircraft CO2 emissions are an exact multiple of fuel consumption.
Fuel consumption being typically expressed in volume, it must first be converted into mass:
Mass of fuel consumed = Volume of fuel consumed × Fuel density
| Possible sources of fuel density |
|---|
| 1. On-board measurement systems |
| 2. Fuel supplier information |
| 3. Density-temperature table |
| 4. Standard 0.8 kg / litter |
CO2 emissions is then calculated by multiplying the mass of fuel by the emission factor:
EMISSIONS = Mass of fuel consumed × Emission factor
| Type of fuel | Emission factor (tCO2/tFuel) |
|---|---|
| Aviation Gasoline (AvGas) | 3.10 |
| Jet gasoline (Jet B) | 3.10 |
| Jet kerosene (Jet A1 or Jet A) | 3.15 |
