LAUSR

ABSTRACT In this study, modernisation of new fuel additives such as antioxidants, oxygenates and nanoparticles are mixed with Jatropha biodiesel with the aim of diluting the level of pollutants from the engine exhaust and upgrading the performance of the engine. Most significant reduction of NO emission by 30% is observed for antioxidants and nanoparticles-blended test fuels, and significant enhancement in the brake thermal efficiency almost equal to that of neat diesel is observed for oxygenates and nanoparticles-blended test fuel, along with substantial reduction of smoke opacity by 43%, carbon monoxide by 60% and unburned hydrocarbon by 33%. The addition of nanoparticles in test fuels improved better fuel–air mixing inside the combustion chamber and enhanced rapid evaporation, resulting in shortened ignition delay characteristics, leading to ameliorated combustion among the test fuels.