Análisis de emisiones contaminantes de escape de dos vehículos a gasolina en condiciones de simulación de ciclo estándar de inspección y mantenimiento

Abstract

This research study objective is to analyze the emission pollutants factors with different fuels, through the driving cycle of inspection and maintenance in Quito city of Ecuador to determine the most efficient fuel. In this research, it was applied the experimental method allowed us to analyze the emissions factors through the IM240 cycle. Extra Gasoline was used with 87 octanes and Ecopaís with 87 octanes plus 5% bioethanol, and Chevrolet SPARK GT Active (1.2L SPGT1.2) and Suzuki Grand Vitara SZ 2.0L (SZ2.0) vehicles, which were mounted on the dynamometer to conduct the driving cycle tests with a time of 480 seconds representing a 6.4 km distance at different speeds. The gathered results; the SPGT1.2 provides better results in terms of CO emissions with Extra (0.758g / km), reducing 46.32% of emissions in relation to using Ecopaís fuel. As long as the SZ2.0 vehicle has greater emissions than 12g / km. Regarding the HC factor, SPGT1.2 reduces 52.94% of emissions; with Extra (0.008g / km) in relation to the Ecopaís. While the SZ2.0 emanates above 0.163g / km with both fuels. Regarding the NOx factor, the SPGT1.2 with the use of Extra fuel (0.177g / km) reduces 13.23% with respect to Ecopaís, as for the SZ2.0, emanates above 2,185g / km. It is concluded that the best results are obtained when using the SPGT1.2 vehicle because it is modern, therefore it has better-integrated technology in emission control. It is recommended the vehicle maintenance, or previous repairs to carry out this test.