Reduction of pollutants emissions on SI engines: accomplishments with efficiency increase



Título del documento: Reduction of pollutants emissions on SI engines: accomplishments with efficiency increase
Revue: Journal of the Brazilian Society of Mechanical Sciences and Engineering
Base de datos: PERIÓDICA
Número de sistema: 000312307
ISSN: 1678-5878
Autores: 1


2
3
Instituciones: 1Universidade de Brasilia, Departamento de Engenharia Mecanica, Brasilia, Distrito Federal. Brasil
2PETROBRAS, Salvador, Bahia. Brasil
3Volkswagen, Rezende, Rio de Janeiro. Brasil
Año:
Periodo: Jul-Sep
Volumen: 27
Número: 3
Paginación: 217-222
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental
Resumen en inglés This paper presents an experimental study aiming to identify the means to minimize the reduction of the overall performance of a gasoline engine when employing the Exhaust-Gas Recirculation (EGR) technique that reduces NOx emissions. The increase of the compression ratio and turbocharging was evaluated as a mean to recover the original performance. The formation of pollutants and the engine performance were verified at full and partial loads. The results show that the combination of exhaust gas recirculation with turbocharger or through an increase of the compression ratio enhance the relation between the engine performance and the emission of NO. However, the turbocharger seemed to be more sensitive to the negative effects of the EGR technology
Disciplinas: Ingeniería,
Ciencia y tecnología
Palabras clave: Ingeniería mecánica,
Emisiones contaminantes,
Vehículos
Keyword: Engineering,
Science and technology,
Mechanical engineering,
Engines,
Pollutant emissions
Texte intégral: Texto completo (Ver PDF)