Thermal-Mechanical Durability of DOC and DPF After-treatment System for Light Heavy Pickup Truck Application

Kai, Ryuji; Sekiya, Takayuki; Ogawa, Masaru; Saiki, K.; Matsubara, Ryosuke; Kurachi, Hiroshi; Brayer, Mickey; Warner, E R.; Fujii, Satoshi; Ren, Shouxian

doi:10.4271/2009-01-2707

Cited by 6 publications

(2 citation statements)

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“…Expenses for engine control system calibration are included into the scope of R&D Exhaust-gases aftertreatment systems are applied to reduce amount of already formed pollutants. These systems include an oxidation catalyst (P. R. Phillips, 1999;Heck et al, 2009), a particulate trap (Blanchard et al, 2002;Kai et al, 2009), an NOx adsorber (Xu et al, 2010;Hoard and Hammerle R., 2004), and a selective catalytic reduction system (Kubsh, 2007, Lambert et al, 2004.…”

Section: (4) Analysis Resultsmentioning

confidence: 99%

Technical and Economic Analysis of Vehicles Pollutant Emissions Reduction Technologies

Luksho¹,

Kozlov²,

Теренченко³

et al. 2015

Biosci., Biotechnol. Res. Asia

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Section: (4) Analysis Resultsmentioning

confidence: 99%

Technical and Economic Analysis of Vehicles Pollutant Emissions Reduction Technologies

Luksho¹,

Kozlov²,

Теренченко³

et al. 2015

Biosci., Biotechnol. Res. Asia

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“…More recent data from EPA (2000) describe DPF volume for heavyduty applications ranging between 1.5 and 2.5 times the engine displacement for cordierite filters. In case of light and medium-duty vehicles, filter volumes for SiC monoliths reach up to 2 times the engine displacement (Blanchard et al (2002); Kai et al (2009)). Both the applications present a monolith aspect ratio around 1.5 in most cases.…”

Section: Introductionmentioning

confidence: 99%

On the impact of DPF downsizing and cellular geometry on filtration efficiency in pre- and post-turbine placement

Serrano

Bermúdez

Angiolini

2017

Journal of Aerosol Science

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The use of aftertreatment systems in reciprocating internal combustion engines is currently mandatory in order to comply worldwide with emission standards. Among these systems, the wall-flow diesel particulate filter (DPF) is in charge of the particulate matter removal. The DPF is conventionally placed downstream of the turbine. However, its placement upstream of the turbine is growing in interest because of the benefits in specific fuel consumption, passive regeneration and aptitude to downsizing. In the current work an in-house 1D wall-flow DPF model is applied to evaluate the effect of the DPF downsizing on filtration efficiency. Both pre-and post-turbine placement are considered in presence of clean and soot loaded substrates. Volume reduction is approached considering diameter and length variation. In parallel, the cell density is also varied modifying the meso-geometry, i.e. cell size and porous wall thickness, imposing constant thermal integrity factor. The sensitivity to this last parameter is also analysed being its influence of second order in comparison to volume and cellular geometry effects. The lower Peclet number in the pre-turbine placement leads to higher filtration efficiency than post-turbine location comparing at the same DPF volume. Diameter based volume reduction provides slightly better results in filtration efficiency because of the way the filtration velocity field is varied. This general behaviour involves additional advantages to the potential for volume reduction of pre-turbine DPFs. Thus, different strategies with boundaries defined by volume reduction at constant filtration area or at constant specific filtration area can be approached looking for the best balance between fuel economy reduction and filtration efficiency increase with pre-turbine DPF placement.

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New Techniques for Damage Assessment of Diesel Particulate Filters

Hands

Li²

2012

Lecture Notes in Electrical Engineering

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Thermal-Mechanical Durability of DOC and DPF After-treatment System for Light Heavy Pickup Truck Application

Cited by 6 publications

References 4 publications

Technical and Economic Analysis of Vehicles Pollutant Emissions Reduction Technologies

Technical and Economic Analysis of Vehicles Pollutant Emissions Reduction Technologies

On the impact of DPF downsizing and cellular geometry on filtration efficiency in pre- and post-turbine placement

New Techniques for Damage Assessment of Diesel Particulate Filters

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