Investigation of Performance and Emission Characteristics in VCR Engine by Using Nano Fuel Additives in Biodiesel- REVIEW PAPER

Abstract

Growing demand of fuel in daily life and its risk cause serious problem for this globe. Serious attention is
required to see this problem. In this review article there is a comparative study to find out the effects of additives for
biodiesel fuel and efforts to recover the combustion and performance and to diminish the emissions. By using
biodiesel, there are most disadvantages such as higher density, lesser heating value, high fuel consumption and high
oxides of nitrogen. To avoid above disadvantages, the fuel additives help in playing a very important role in
minimizing the drawbacks of biodiesel and in maintaining international fuel standards. Additives can be considered
toward to improve combustion, fuel economy and to decrease the emissions. Aluminium oxide nanoparticles (ANPs)
or Cerium Oxide Nanoparticles were added to palm oil biodiesel blend in different proportions to investigate the
effects on a four stroke, single cylinder [2]. variable compression ratio engine using Cerium Oxide Nanoparticles
and Carbon Nano-tubes as fuel-borne nanoparticles additives in Die sterol (diesel–biodiesel–ethanol) blends. As
Diesel and Ethanol are immiscible, Castor oil biodiesel is used as an additive which acts as a bridging agent to
prevent the phase separation. Stability studies are carried out using Aluminium oxide nanoparticles and Cerium
Oxide Nanoparticles (CERIA) each 25, 50, 100 ppm in the Die sterol blends subjected to high speed mechanical
agitation followed by ultrasonic bath stabilization[4].The metal based additives, cetane number additives,
antioxidant additives and oxygenated additives help in improving the quality of the biodiesel. From this
literature review, the effects of additive on biodiesel are explained. The reviews conclude thatthe uses of
additive to the 2nd generation of biodiesel are the best in improving the combustion performance and emission
reduction.A classical differential evolution algorithm (DEA) is further used on the network model to find out optimal
combination of nanoparticles, biodiesel and diesel and proven through experimental validation[1].