INTRODUCTION
Due to global warming and depletion of petroleum product, a need of research for Alternative fuel
is most necessary in the world. Present CI engine necessitates clean Combustion and increase in
performance with varying operating condition. The demand of Energy is raised mainly because of life
style change, large amount of energy utilized in Industrial, agricultural irrigation and raising in
automobile. When looking for various Sources of alternate fuel, it should safe guard the
environment and ensure the long term
Availability of fueli. In recent years, number of research is going on bio based energy. Bio Based
fuel has the more probability to aid the demand of fuel blend in proper method.
The large amount of renewable energy is obtained from biomass energy. The
Vegetable oil is derived from various sources of biomass energy. The non-edible oil is less Cost
than edible oil. The non-edible oil plant is grown In any climatic condition. Number of Advantages
results in using the vegetable oil such as increasing in agricultural economics, Rural development
and other main important advantage is reduced emissions. The chemical Property of this fuel leads
to reduce the emission. Presently many researchers investigated to Reduce the emission in three
methods. The first one for design parameter, second one for Operating parameter and last one for
fuel modification. The operating parameter includes Various injection timing, various nozzle hole
size and various compression ratio, and fuel Modification for biodiesel, alcohol fuel, syngas gas
and hydrogen fuel etc. Biodiesel reduces Particulate matter considerably. The biodiesel is used in
straight diesel engines results in Considerable decrease of emission except NOxi. The properties
are nearly equal to that of Diesel.
Summary of Introduction —Various type of Bio diesel are available in market but feasible l009oin CI
Engine as per ARAI Production Norms, so additive blend process is correct way of improving engine
thermal efficiency,
