Análisis de resultados de la medición de emisiones contaminantes y consumo de combustible del vehículo Chevrolet Optra mediante la implementación de una válvula Marclais aplicado en la ciudad de Riobamba

Abstract

This study aims to know the operation and efficiency of the ecological valve altimetry Marclais to mitigate the harmful effects of the sea level rise on engine performance. It was installed in an electronic fuel injection vehicle and tests for polluting emissions and fuel consumption. Tests of polluting emissions were carried out according to the NTE INE 2 203: 2000 standard used in static tests, data was obtained at different loads on engine idling, 2000rpm, and 4000rpm using a KEIN 4-2 gas analyzer. The fuel consumption was made by dynamic tests according to SAE J 1321: 2012 standard. It showed the data collection was performed massively on an established route of 12.3 km at an average speed of 50 km/h, with extra fuel being the most sold in the city of Riobamba at 2750 masl. Analyzing the obtained data, there was a 20% decrease in Carbon Monoxide (CO) and 24% in Hydrocarbons (HC) from polluting emissions. Being these gases the most pollutants and those that seek to reduce as much as possible. Oxygen (O2) and Carbon Dioxide did not show notable variations, and there was a significant saving of 23.56% in fuel consumption. For the validation of the obtained data, the Student's t-test, concluding that the Marclais altimetric valve contributes to the reduction of polluting gases and fuel consumption in the test car. It is recommended to carry out more studies on diesel engines and carburetors, due to the large number of vehicles circulating in cities with high-rise.