EVALUATION OF EMISSION OF CO, NO AND NOX IN EXHAUST OF DIESEL ENGINE FUELED WITH FUEL ADDITIVED

Abstract

Air pollution has emerged as major global problems. In the last decade, the development of new engines, the use of different forms of treatment of exhaust gases and the increase in fuel quality were used to reduce pollutants (regulated or not). Among the various developments to reduce emissions, the use of oxygenated additives to diesel and paraffin is a quick and effective measure to reduce pollutants. In this work we studied the influence of oxygenated compounds (diethyl ether (DEE), 1-dodecanol (DOD), 2-methoxy-acetate (MEA) and terc-butanol (TERC)) and paraffin (heptane (HEPT) and n- hexadecane (CET)) added to diesel in order to improve the quality of CO, NO and NOx in the exhaust of diesel engine, single cylinder. The fuels used in the studies are formulations of diesel reference, here named S10, which contains low sulfur (<10ppm). The formulations MEA1 (1% v/v), MEA5 (5% v/v), MEA15 (15% v/v), TERC1, TERC5, TERC15, DEE1, DEE2, DEE5, HEPT5, HEPT15, DOD5, CET2, CET5, CET15, CET30 and CET50 were used for testing. The results show that the formulations containing the additive CET had lower specific fuel consumption and lower emission of CO, without significantly altering the NO and NOx.