Estudio de la incidencia en las emisiones contaminantes mediante pruebas estáticas en un motor a gasolina considerando el comportamiento del termostato en el sistema de refrigeración bajo la Norma NTE INEN 2 204:2002 en condiciones de ralentí o marcha mínima

Abstract

This research aimed to study the incidence of the thermostat automotive on pollutant emissions from the gasoline internal combustion engine to avoid overheating problems. There were two stages carried out in testing and data collection. In the first stage with a thermostat valve and the second without it; these tests on the vehicles were performed at idle conditions at 800 revolutions per minute (rev/min) and speed of 2,500 (rev/min). The data was collected at 2,500 meters above sea level (masl) to four pickups for daily use on the country`s highways. The standard that supported the investigation is NTE INEN 2 204:2002 based on the maximum limits allowed for polluting gas emissions in tests static of it. On the other hand, the fuel used in the vehicles was extra gasoline being the most commercialized in Ecuador. The equipment used was BrainBee brand AGS-688 from homologated Italian origin used and certified internationally for data collection about the emission levels of pollutant gases from the engine. It is concluded by a statistical tool that the thermostat valve directly affects gas levels contaminants in static tests during cold engine start; considering aspects to bear in mind such as data collection, equipment, and vehicles to be used.