Impact of Transitioning from Fuel Engine Cars to Electric Engine Cars on the Environment

How transferring from fuel engine car to an electric
engine car impacts the environment
Developments in the Physical Sciences SCI 3700
We are living in an era which can be described as the most energy hungry
era since the beginning of mankind history. Everyday our consumption of energy
is just increasing exponentially. However, as everything else in this universe,
energy is also limited and utilizing the limited energy in the most efficient way has
been the biggest concern in the scientific community for a long time. Every now
and then we see new inventions promising that it can use the energy more
efficiently than before.
At the same time, climate change is a major issue in today’s world. Since
the beginning of the industrial era, the main source of energy for the engines is
fossil fuel. Engine converts the organic energy into mechanical energy by burning
it. At the end, it emits Carbon dioxide to the environment as a leftover.
Transportation industry is one of the biggest industries that require a tremendous

amount of fossil fuel energy and directly impact the climate of our world through
Carbon emission. As a result, there are new inventions in this field as well that
promises to use energy more efficiently with less environmental impact. We are
observing a new era of electric cars that is having zero carbon emissions, and does
not require any type of fossil fuel to run. In general observation, this type of
electric engines for the cars seems more energy efficient and more
environmentally friendly comparing with the traditional cars ran with fossil fuel.
However, it is still a question that is it the reality or are we missing something
behind the scene?
Transportation industry is the biggest carbon dioxide producer in the USA.
Around 6 trillion passenger miles are used each year here. [1] Comparing with
other countries, the USA has the largest amount of cars on the road. This gigantic
amount of vehicles is one of the biggest harmful carbon dioxide producers after
heavy industries on rank. If we can reduce the carbon dioxide emission from
transportation industry, it will significantly improve the environment around us.
Still the majority amount of cars is run by traditional fossil fuel engines. Moreover,
we have to look how a traditional engine works first in order to understand how
traditional engine impacts our environment.
A traditional fossil fuel run engine converts the stored organic energy of
fossil fuel, usually gasoline, diesel or patrol to mechanical energy by a reaction
called the combustion reaction inside the engine cylinders. During this process,
oxygen from the air is mixed with the gasoline which creates a slur of gasoline and
air. This mix is then ignited by the spark. This combustion produces a massive
amount of pressure to move the piston inside the engine cylinder. The linear
movement then transfer to the wheels through transmission which converts it

into a rotational movement. As this process is highly mechanical, the efficiency of
fossil fuel energy is sacrificed. Therefore, only 30-40% of fossil fuel energy is used
to run the car while 70-60% energy gets lost during the process in the form of
heat. Even the most efficiently designed fossil fuel engine can only give an
efficiency of 60%. [1]
Fuel economy increasing since 1978 has saved
more than 50 billion gallons of gasoline per year. [2]
To reduce this pollution, consumption of fossil fuel for car needs to be
decreased. A study from Reducing Greenhouse Gas Emissions From
Transportation by David L. Greene, a Corporate Fellow of Oak Ridge National
Laboratory Shows that from year 2010 to year 2015 average car MPG increased
from 22 to 30 which is a clear indication of the technology improvement of
traditional car engine. [3] Even though this improvement promises us a brighter
future for our next generation, still there are limitations. Traditional engine will