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 / 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|