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 |
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1. On-board measurement systems |
2. Fuel supplier information |
3. Density-temperature table |
4. Standard 0.8 kg / liter |
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 |