Ecological Transport Information Tool for Worldwide ... - Schenker

IFEU Heidelberg, Öko-Institut, IVE, RMCON Page 25
Explanations:
• The formula is used for all emission components which are directly correlated to final
energy consumption (CO 2 and SO 2 ) and for combustion related emissions of fuel driven
trains and ships (see chapter 5.2 to 5.4).
• For trucks and aircrafts combustion related emissions are calculated with the formula in
chapter 3.3.2
3.3.4 Upstream energy consumption and emissions per net tonne km
The principle calculation rule for the calculation of vehicle emissions is
Upstream energy consumption or emissions per net tonne-km =
specific energy consumption of vehicle or vessel per net tonne km
* energy related upstream energy or emission factor per energy carrier
The corresponding formulas are
EMU tkm,i = ECF tkm,i, * EMU EC,I
ECU tkm,i = ECF tkm,i, * ECU EC,i
Abbr. Definition Unit
EMUtkm,i Upstream emissions for each energy carrier i [g/tkm]
ECUtkm,i Upstream energy consumption for each energy carrier i [MJ/tkm]
i
Index for energy carrier(e.g. diesel, electricity, HS)
ECFtkm,i Final energy consumption per net tonne km for each energy carrier i [MJ/tkm]
EMUEC,i Energy related upstream emission factor for each energy carrier i [g/MJ]
ECUEC,i Energy related upstream energy consumption for each energy carrier i [MJ/MJ]
Expanations:
• Formulas for upstream energy consumption and emissions are equal, but have different
units.
• Formulas are equal for all transport modes; upstream energy consumption and emissions
factors used in EcoTransIT World are explained in chapter 5.6
EcoTransIT World: Methodology and Data – July 15 th , 2010