Modeling of Soot Deposition and Active Regeneration in Wall-flow DPF and Experimental Validation ROMA TRE University

Format:

Book

Conference/Event

Author/Creator:

Chiavola, Ornella, author.

Contributor:

Cavallo, Domenico Mario

Chiatti, Giancarlo

Mancaruso, Ezio

Vaglieco, Bianca Maria

Conference Name:

SAE Powertrains, Fuels & Lubricants Meeting (2020-09-22 : Krakow, Poland)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2020

Summary:

Growing concerns about the emissions of internal combustion engines have forced the adoption of after-treatment devices to reduce the adverse impact of diesel engines on health and environment.Diesel particulate filter are considered as an effective means to reduce the particle emissions and comply with the regulations. Research activity in this field focuses on filter configuration, materials and aging, on understanding the variation of soot layer properties, on defining of the optimal strategy of DPF management for onboard control applications.A model was implemented in order to simulate the filtration and regeneration processes of a wall-flow particulate filter. The model is based on a lumped parameter approach able to be used for on-board monitoring and control, in order to provide knowledge of DPF status versus time.The filtration model is based on the unit collector' and fluid dynamic approaches to predict trapped mass and filter backpressure evolution during time. The model accounts for the size distribution of soot particle in the engine exhaust, since it has demonstrated that particle diameter has a large impact on the DPF properties during loading process. For the regeneration process, the attention was focused on the O2 non-catalytic oxidation of the trapped soot.The model was applied to simulate the loading/regeneration processes of a wall-flow DPF under real engine operation condition. Experimental tests were carried out and measurements were used to validate the proposed model

Notes:

Vendor supplied data

Publisher Number:

2020-01-2180

Access Restriction:

Restricted for use by site license