Engenharia mecânica aliada à sustentabilidade: estudo de caso comparativo das atualizações em um sistema de exaustão de um veículo pesado devido à transição da Norma PROCONVE P-7 para P-8

Abstract

DOMINGUES, Alan Martins; REIS, Haila Cândido dos. Mechanical Engineering Allied to Sustainability: Comparative Case Study of Updates in an Exhaust System of a Heavy Vehicle Due to the Transition from PROCONVE Regulation P-7 to P-8. 2022. Resende – RJ. Monograph (Bachelor’s Degree in Mechanical Engineering) AEDB. In the midst of an increase in global concern about the emission of polluting gases by vehicles powered by internal combustion engines and in the search for alternatives to reduce damage to the environment and human health, the Brazilian government and private companies are advancing in measures that aim to contribute to a reduction of the environmental impacts caused by the transportation of loads in the country. With that in mind, this work uses a case study as a methodology to analyze some updates implemented in the exhaust system of a diesel-powered heavy vehicle, by an automaker that operates in Brazilian territory. This was done through a comparative analysis that pointed out the main changes that occurred in the transition of legislation. In addition, several alternatives sought by the main brands in the segment are raised, with technologies developed specifically to meet the PROCONVE P-8 regulation, which will come into force from the year 2023. It was possible to analyze how a vehicle whose exhaust system, which previously operated only on the basis of EGR and DOC technologies, was updated to comply with the legislation by replacing it with the SCR. The study in question allowed the analysis of the main benefits of changes and understand the importance of treating the gases emitted by the burning of Diesel oil.