Exhaust Emission Fuel Assesment

Exhaust Emission 1
EXHAUST EMISSION
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Exhaust Emission 2
Exhaust Emission
Fuel provides the energy necessary for day to day activities, from cooking to powering
engines in various industries, including the automobile. Engines perform differently depending
on such factors as the behavior of emission, type of fuel and its consumption, mechanical and
thermal loading, and noise. Most drivers use two main types of propellants: hydrogen and
traditional fuel. Fuel refers to any material that can react with other matter to release heat energy
or accomplish work. This literature review gives a comparison between hydrogen and traditional
fuel on engine combustion and exhaust emission.
Researchers view hydrogen as a suitable engine fuel for low-carbon automobiles in the
coming days. They assert that consumers can generate hydrogen from water using various power
sources, including solar, wind, and nuclear, then convert to useful energy without harmful
environmental effects (Kim, et al., 2017). Water is the only by-product, though some traces of
NOx may be produced in the combustion system (Talibi, et al., 2014). Hydrogen fuel can
substitute fossil fuels in cars, buses, and tracks. More so, this hydrogen can combine with new
technologies to reduce carbon emissions from the truck and industrial engines.
Adding hydrogen to combustion fuel reduces the burning speed and reduces the rotating
variations; therefore, it increases engine performance. At higher exhaust gas recirculation (EGR)
rate, hydrogen addition decreases the cylinder-to-cylinder variations, improving engine
performance (Anand, et al., 2010). For this reason, manufacturers can widen the operable EGR
rate for a turbo gasoline direct injection engine. Moreover, the flammability range of hydrogen is
high, compared to other fuels (Talibi, et al., 2014). Therefore, hydrogen can burn in an internal
engine over a full scale of fuel-air mixtures, making it a lean fuel-air mixture. In this mixture, the
amount of fuel is lower than the established ideal quantity that a given amount of air needs for