ROLE OF BIODIESEL IN EMMISION REDUCTION ON IC ENGINE

Abstract

As the fossil fuels are depleting day by day, there is a need to find out an alternative fuel to fulfil the energy demand of the world. Biodiesel is one of the best available resources that have come to the fore-front recently. Biodiesel production is a promising and important field to research because the relevance it gains from the rising petroleum price and its environmental advantages. The quality of biodiesel fuel was found to be significant for its successful use on compression ignition (i.e. CI) engines and subsequent replacement of non-renewable fossil fuels. Conventional biodiesel separation and purification technologies were noticed to yield lower quality biodiesel fuel with resultant excessive energy and water consumption. The combustion phenomena of biodiesel and its blends are not the same as fossil diesel combustion in compression ignition engines due to their different physio-chemical fuel properties. Use of biodiesels in CI engines is generally found to reduce emissions of hydrocarbons (HC), carbon monoxide (CO), and particulate matters (PM); but to increase emission of oxides of nitrogen (NOx) as compared to conventional diesel fuel.