IC ENGINE ASSIGNMENT (2)
NAME – LOKESH KUMAR MEENA
STUDENT ID – 2021UME1481
BATCH – M4
Q (1). Write a short note (300 to 500 words) on Applications of
Renewable Fuels for Internal Combustion Engines.
Ans - Renewable fuels produced from renewable and natural
resources like biofuel, lipids and cellulosic material etc.
In this modern time we all are observing that the demand of
renewable fuels , growing so rapidly at the % rate of 8 because the
reason behind this is lots of emissions from standard fuels and the
limited resources of standard fuels.
These fuels are developed from natural sources and in these fuels the
green house emission are so less compared to conventional fuels so
these are considered as environment friendly.
Renewable fuels used in ic engines : biodiesel, ethanol , hydrogen
…etc.
(A) BIODIESEL : it is derived from vegetable oil, animal fats, or
recycled cooking oil. Biodiesel meets both the biomass diesel and
over all advanced biofuel requirement of the renewable fuel
standard. It can be used in any diesel engine without modifications,
and it has several advantages over conventional diesel fuel. it has
higher cetane rating than conventional diesel, which means that it
burns more cleanly and efficiently. It is biodegradable so it is
environment friendly. It is referred as B100. The most common
biodiesel blend is B20, which vary 6-20% biodiesel blend with
petroleum diesel. Its main disadvantage is it is not suitable for use in
low temperatures.
(B) ETHANOL : it is made from crops such as corn, sugarcane, and
wheat, and it can be used as a fuel additive or as a standalone fuel in
flex-fuel vehicles. It is also a eco-friendly renewable fuel compared to
conventional fuels. The most common blend of ethanol is E10(10%
ethanol, 90% gasoline).Ethanol has higher octane rating than gasoline
means it can produce more power and can be used in higher
compression engines. Ethanol is not used as a fuel because of energy
density. Ethanol can not used directly in IC Engines because it can
cause irreparable harm to engine.
(C) HYDROGEN : It is produced through the electrolysis of water. It
can be used in fuel cell vehicles or in IC engines that have been
modified to run on hydrogen. Hydrogen fuel cells do not generate
greenhouse gas emissions means almost zero emission as for fossil
fuel sources, thus reducing pollution and improving air quality as a
result. However the production cost is high. The problems of using
hydrogen fuel in cars arise from hydrogen being difficult to store in
either a high pressure tank or a cryogenic tank.
Renewable fuels have several applications in ICEs, including in
transportation, agriculture, and industry. In the transportation sector,
renewable fuels can be used in cars, trucks, and buses to reduce
emissions and improve fuel efficiency. In agriculture, renewable fuels
can be used to power farm equipment and reduce the environmental
impact of farming.
Q(3). Write a short note (300 to 500 words) on global potential of
Renewable Fuels for Internal Combustion Engines.
Ans - Renewable fuels have the potential to revolutionize the
automobile industries to power our internal combustion engines. By
these fuels we are reducing our dependency on fossil fuels. It also
help us to go eco-friendly and reduce greenhouse gas emissions. In
recent years the demand of renewable fuels and energy has
increased because of global environment issues and cost
effectiveness of renewable fuels.
Renewable fuels can be used in IC engines with little to no
modification, making them a viable alternative to traditional fossil
fuels. In fact, many modern ICEs are already designed to run on
blends of conventional and renewable fuels.
The most promising renewable fuels for ICEs is biodiesel, it also has a
higher cetene number than diesel fuel which means it ignites more
easily and burns more cleanly.
Another promising renewable fuels are ethanol , hydrogen and
synthetic fuels are also being developed for use in ICEs.
The global potential for renewable fuels for ICEs is vast. According to
the International Renewable Energy Agency (IRENA), renewable
energy sources could supply up to 30% of the world's total energy
needs by 2030, with biofuels accounting for a significant portion of
this. The use of renewable fuels in transportation is also expected to
increase, driven by policies such as renewable fuel standards and
carbon pricing.
Despite these challenges, the global potential for renewable fuels for
ICEs is significant. As the world continues to transition towards a lowcarbon economy, the use of renewable fuels in transportation will
play an important role in reducing emissions and improving energy
security. By investing in the development and deployment of
renewable fuels, we can help to create a more sustainable and
resilient future for all