Análisis de emisiones de vehículos en función a su antigüedad, en Chimbote-Peru

Published in: Innovation in Education and Inclusion : Proceedings of the 16th LACCEI International Multi-Conference for Engineering, Education and Technology
Date of Conference: July 18-20, 2018
Location of Conference: Lima, Perú
Authors: Johnny Nahui-Ortiz (National University of Engineering - UNI, PE)
Serapio A. Quillos-Ruiz (Universidad Nacional del Santa, PE)
Nelver J. Escalante-Espinoza (Universidad Nacional del Santa, PE)
Full Paper: #521

Abstract:

In this research, an assessment of four-stroke spark-ignition engines that run on 90 octane gasoline as well as converted-to-LPG vehicles is carried out. It has been considered 100 hp as an average out of 6765 units. Emissions from CO and CO2 were measured, according to a classification into four categories of aging, from 0 to 5 years, from 5 to 10 years, from 10 to 15 years, and from 15 years on. Emissions from CO in units that run on 90 octane gasoline and LPG show high emissions in iddle mode and they are higher than the maximum permissible of 0.5%. However, when revolutions per minute increase then emissions reduce. At 3500 rpm, CO emissions are lower than 0.5 and do not exceed the maximum permissible. Units that run on LPG show lower emissions compared to units that run on LPG. Also, emissions of CO2 are low in iddle mode but they are higher when revolutions per minute increase either in units that run on gasoline or on LPG. The amount of CO2 improves at 3500 rpm, achieving acceptable values. Units that run on gasoline show more consistent values than those that run on LPG, reaching values higher than 10% of CO2. Mainly low emissions are given by units that run on gasoline and that are less than 10 years old.