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Listar por palabra clave "Aftertreatment"

Mostrando ítems 1-14 de 14

Assessment of exhaust raw emissions and aftertreatment performance in a retrofitted heavy duty-spark ignition engine operating with liquefied petroleum gas

Bermúdez, Vicente; Ruiz-Rosales, Santiago; Sanchis, Enrique José; Conde-Pabón, Brayan Yessid (Elsevier, 2024-01-01)

[EN] This study investigates the effects of varying Liquefied Petroleum Gas compositions on pollutant emissions and three-way catalyst performance in retrofitted heavy-duty spark-ignition engines. It focuses on fuels with ...
Caracterización experimental de un catalizador de tres vías para su aplicación en motores GLP

Loeri Bosín, Daniel (Universitat Politècnica de València, 2022-10-06)

[ES] Desde hace años se ha producido un incremento de la presión por parte de los organismos reguladores para limitar las emisiones contaminantes por parte de los motores térmicos empleados como sistemas propulsivos en ...
Experimental and computational approach to the transient behaviour of wall-flow diesel particulate filters

Torregrosa, A. J.; Serrano, J.R.; Piqueras, P.; García Afonso, Óscar (Elsevier, 2017)

[EN] The implementation of tight vehicle emission standards has forced manufactures to use aftertreatment systems extensively. In addition to pollutant emissions abatement, these devices have a noticeable impact on the ...
Experimental assessment of a pre-turbo aftertreatment configuration in a single stage turbocharged diesel engine. Part 2: Transient operation

Lujan Martinez, José Manuel; Serrano Cruz, José Ramón; Piqueras Cabrera, Pedro; García Afonso, Óscar (Elsevier, 2015-02-01)

This paper corresponds to the second part of a work devoted to analyse the impact of the pre-turbo aftertreatment configuration on the performance of a single stage turbocharged Diesel engine. This second part focuses on ...
Experimental assessment of pre-turbo aftertreatment configurations in a single stage turbocharged diesel engine. Part 1: Steady-state operation

Luján, José M.; Bermúdez, Vicente; Piqueras, P.; García Afonso, Óscar (Elsevier, 2015-02-01)

Diesel oxidation catalysts and diesel particulate filters are standard aftertreatment systems in Diesel engines which are traditionally placed downstream of the turbine. However, pre-turbo aftertreatment configurations are ...
Experimental investigation on the efficiency of a diesel oxidation catalyst in a medium-duty multi-cylinder RCCI engine

Benajes, Jesús; García Martínez, Antonio; Monsalve-Serrano, Javier; Lago-Sari, Rafael (Elsevier, 2018)

[EN] Reactivity controlled compression ignition (RCCI) combustion is one of the most promising low temperature combustion (LTC) techniques, as it is able to provide ultra-low NOx and soot emissions together with higher ...
Heat transfer modelling in honeycomb wall-flow diesel particulate filters

Galindo, José; Serrano Cruz, José Ramón; Piqueras, P.; García Afonso, Óscar (Elsevier, 2012-07)

Heat transfer in wall-flow monoliths has gained in interest because of the widespread adoption of these systems by automotive industry to fulfil soot emission regulations and the importance of heat exchange on the regeneration ...
Influence of Pre-Turbine Small-Sized Oxidation Catalyst on Engine Performance and Emissions under Driving Conditions

Serrano, J.R.; Piqueras, P.; De La Morena, Joaquín; Ruiz-Lucas, María José (MDPI AG, 2020-11)

[EN] The earlier activation of the catalytic converters in internal combustion engines is becoming highly challenging due to the reduction in exhaust gas temperature caused by the application of CO2 reduction technologies. ...
Packed bed of spherical particles approach for pressure drop prediction in wall-flow DPFs (diesel particulate filters) under soot loading conditions

Serrano Cruz, José Ramón; Arnau Martínez, Francisco José; Piqueras Cabrera, Pedro; García Afonso, Óscar (Elsevier, 2013-09)

The soot loading process in wall-flow DPFs (diesel particulate filters) affects the substrate structure depending on the filtration regime and produces the increase of pressure drop. Deep bed filtration regime produces the ...
Performance of a conventional diesel aftertreatment system used in a medium-duty multi-cylinder dual-mode dual-fuel engine

García Martínez, Antonio; Monsalve-Serrano, Javier; Villalta-Lara, David; Lago-Sari, Rafael (Elsevier, 2019-03-15)

[EN] Dual-mode dual-fuel combustion stands as one of the promising techniques to allow the dual-fuel operation along the whole engine map. This concept relies on using different combustion strategies as reactivity controlled ...
Performance of a diesel oxidation catalyst under diesel-gasoline reactivity controlled compression ignition combustion conditions

Piqueras, P.; García Martínez, Antonio; Monsalve-Serrano, Javier; Ruiz, María José (Elsevier, 2019-09-15)

[EN] Reactivity controlled compression ignition is a promising combustion strategy due to the combination of excellent thermal efficiency with ultra-low nitrogen oxides and particulate matter raw emissions. However, very ...
PROYECTO DE PUESTA A PUNTO Y OPTIMIZACIÓN DE UN BANCO DE GASES SINTÉTICOS PARA ENSAYOS DE SISTEMAS DE POS-TRATAMIENTO

Jiménez Alfonso, Mario (Universitat Politècnica de València, 2021-06-28)

[ES] La reducción de gases contaminantes emitidos por los sistemas propulsivos de combustión es una prioridad para todos los fabricantes, una de las vías utilizadas para conseguir este objetivo es el uso de sistema de ...
Proyecto de simplificaciones en el modelado de reactores monolíticos con recubrimiento catalítico multicapa

Sierra Campos, Paula (Universitat Politècnica de València, 2024-11-21)

[ES] Hoy en día, la concienciación sobre los efectos de la contaminación antropogénica en el medio ambiente y las legislaciones de los distintos gobiernos, especialmente los europeos, han suscitado la necesidad de buscar ...
Sizing a conventional diesel oxidation catalyst to be used for RCCI combustion under real driving conditions

García Martínez, Antonio; Piqueras, P.; Monsalve-Serrano, Javier; Lago-Sari, Rafael (Elsevier, 2018)

[EN] Reactivity controlled compression ignition (RCCI) combustion has demonstrated to be able to avoid the NOx-soot trade-off appearing during conventional diesel combustion (CDC), with similar or better thermal efficiency ...