AN EXPERIMENTAL INVESTIGATION ON PERFORMANCE, COMBUSTION AND EMISSION PARAMETERS BIODIESEL-WATER EMULSION ON A DI DIESEL ENGINE

With the rapid depletion of fossil fuels and their increasing demand has led to choice biodiesel as an alternative fuel for diesel engine without any engine modification. Investigations have been carried out to study the reduction of oxides of nitrogen emission and smoke emission on a single cylinder, direct injection diesel engine with eucalyptus oil-water emulsion as fuel. Primarily the properties of chosen oil were compared with other biodiesel fuels which had already been tested and experiments were performed by varying the quantity of water from 10% to 30% (in volume) in eucalyptus oil water emulsion blend with diesel. From the results it was inferred that 30% water emulsion with biodiesel could significantly reduce NOx by 30% and smoke emission by 32% without adverse effect on brake thermal efficiency, when compared with diesel fuel at full load condition of the engine without emulsion and comparatively at very low cost to other emission control methods