ppt presentation on ethanol as alternate fuel in mechanical engineering
#1

sir please send the ppt presentation on ethanol as alternative fuel for my technical seminar
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#2
Abstract

Ethanol is an attractive alternative fuel because it is a renewable bio-based resource, thereby providing the potential to reduce particulate emissions in compression–ignition engines. In this review the properties and specifications of ethanol blended with diesel fuel are discussed.Special emphasis is placed on the factors critical to the potential commercial use of these blends. The effect of the fuel
on engine performance, durability and emissions is also considered. The formulation of additives to correct certain key properties and maintain blend stability is suggested as a critical factor in ensuring fuel compatibility with engines. However, the addition of ethanol to diesel fuel simultaneously decreases cetane number, high heating value, aromatics fractions and kinematic viscosity of ethanol blended diesel fuels and changes distillation temperatures. Also for maintaining vehicle safety with these blends may entail fuel tank modifications. Further work is required in specifying acceptable fuel characteristics, confirming the long-term effects on engine durability, and ensuring safety in handling and storing ethanol–diesel blends
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#3
Ethanol is a renewable fuel made from corn and other plant materials. The use of ethanol is widespread, and approximately 97% of gasoline in the U.S. contains some ethanol. The most common blend of ethanol is E10 (10% ethanol, 90% gasoline). Ethanol is also available as E85 (or flex fuel)—a high-level ethanol blend containing 51%-83% ethanol depending on season and geography—for use in flexible fuel vehicles. E15 is defined by the Environmental Protection Agency as a blend of 10.5%-15% ethanol with gasoline. It is an approved ethanol blend for use in model year 2001 and newer light-duty conventional vehicles.

Energy Security
Depending heavily on foreign petroleum supplies puts the United States at risk for trade deficits and supply disruption. In 2014, 27% of petroleum products were imported. That number has declined during the past 10 years because of increased domestic crude supplies and ethanol production.

Fuel Economy and Performance
A gallon of ethanol contains less energy than a gallon of gasoline. The result is lower fuel economy than a gallon of gasoline. The amount of energy difference varies depending on the blend. For example, E85, with 83% ethanol content, has about 27% less energy per gallon than gasoline (the impact to fuel economy lessens as ethanol content decreases). Gasoline vehicles, including flexible-fuel vehicles (FFVs), are optimized for gasoline. If they were optimized to run on higher ethanol blends, the fuel economy penalty would likely be less.
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