Evaluación del comportamiento en un motor de encendido provocado bajo mezcla de gasolina - etanol

Abstract

The objective of this project is to evaluate the behavior of the torque and power of an ignition engine produced under different percentages of gasoline-ethanol mixture, through dynamometer tests to select the best variant. To characterize the mixtures of 5% and 10% ethanol, their physical and chemical properties are determined through tests in the LABCAL laboratory of Escuela Politécnica Nacional (EPN). The change of the mechanical performance of the vehicle was carried out by means of dynamic tests of torque and power on a Superflow AutoDyn 30 dynamometer based on the ISO 1585 standard, SEA J-1349. In the laboratory of the Universidad Politécnica del Azuay, the torque and power data were taken with the extra gasoline with a mixture of 5% and 10%, to perform the statistics of the acquired data, the STATGRAPHICS program was used to determine if there is a significant difference between the experienced treatments. In the results of the gasoline characterization, it was analyzed that the octane had an effective increase with the mixture of 10%, while the Reid vapor decreased. The results of torque and power were compared and analyzed, concluding that with the mixture of 10% the values of these parameters are increased.