Análisis del comportamiento de un MCI de ciclo Otto mediante la implementación de un combustible alternativo para observar el desempeño del motor y la incidencia de las emisiones de gases generadas

Abstract

The objective of this study was to analyze if there is an improvement in the performance of a 1600 cc engine by interpreting the torque and power curves when it comes into operation with alternative fuels, to later compare them with the data issued by the manufacturer, as well as the interpretation of gas emissions generated from the combustion of these fuels. For this, the preparation of fuels at different volumetric fractions of methanol (M5, M10 and M15) was considered, to immediately carry out a detailed study of each variant of alternative fuel, analyzing different properties of the fuels, which will be supported with the execution of each laboratory test under NTE INEN regulations that later allow them to be compared by regulations and technical requirements of fuels derived from petroleum. The application of each alternative fuel in the engine was interrelated with the functionality of a MegaSquirt II programmable computer, which allowed the elaboration of a map for the engine, in which it allowed to establish ideal parameters of ignition advance and fuel injection that allowed to guarantee the stable operation of the engine when it came into operation with each of the fuels that have been proposed for the analysis, thus reaching the quantification of the study variables torque, power and emissions in special equipment for each of them. Concluding, that the purity of methanol is determined to improve the chemical conditions of fuels where it was shown that the ideal amount to improve engine performance was 10 percent methanol (M10) with Extra and Super gasoline. Coming to recommend that, to strengthen the study of alternative fuels with volumetric fraction of methanol, it should be analyzed if the octane number increases or decreases as the volumetric fraction of methanol increases.