The Impact of Electric Train Transportation on CO 2 Emission Reduction: The Case of Addis Ababa-Djibouti Electric Railway Line
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Date
2017-06
Authors
Journal Title
Journal ISSN
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Publisher
Addis Ababa University
Abstract
On this research paper the (CO
2
) emission reduction from the operation of Addis Ababa-Djibouti
electric railway line project of replaced truck trailer is studied, discussed and quantified. Emission
reduction mechanism is applicable by one of globally accepted environmentally friendly, zero
emission development option of the electric train railway project. Due to the application of this life
saving project it is expected that a great reduction in motorized vehicles from road transport in the
ratio of 1 electric train = 50 long trucks that consumes different fuel types which helps to emit
carbon dioxide (CO
2
) and other toxic gases. The mode shift effect procedure and method applied
to estimate the energy and (CO
2
) emission avoided by the implementation of this project. The
procedure developed is determined 7.707 M ton of CO2e will be saved emissions in the project
year of 18 years from (2017-2035) which is applied to Addis Ababa-Djibouti electric railway and
the saved energy is 1.10E+11 KWH (384 million GJ energy, with much 95% of this energy is
corresponding to non-renewable energy. Each fright (container, and bulk products) kilometer will
result in avoid emissions(gCO
2
)and avoided non-renewable energy consumption of Ethiopia
(specifically on the constructed railway line of The Addis Ababa-Djibouti corridor which is the
major import and export corridor of the Country handling more than 90% of the foreign trade.
In addition, on the project year Ethiopian truck trailer will consume a total of 2,613,308,212 liter
diesel fuel with its direct tail emission of 6.3190 MT CO
2
e if vhicle were used. The life cycle
analysis GHG gases amount total of 2.5 MT of CO
2
e from fuel extraction, refining plant,
transportation and leakage are found by using GREET life cycle modeling software. Moreover the
emission from service of 30 year or (6,000,000 km travelled) life cycle of fright vehicles of trucks
are analyses based on the existing collected data. A total of 0.00614599 M ton of CO
2
e from service
are carried out. The Microsoft Excel software the GREET life cycle modeling software package is
greatly used in the analysis of different data. Finally a Microsoft Excel software program(GHG emission calculator) are prepared that will be
used for anyone to find out the average fuel consumption, LCA emission from vehicles service,
emission from electricity generation and CO
2
e emitted gas with its percentage of CO
2
and SF
6
by using an input of ton and kilometer variables.
Description
Keywords
CO 2 e emissions, environment, transportation, railway, energy, electricity, emission reduction, mode shift effect