Axial NO 2 Utilization Measurements within a Partial Flow Filter during Passive Regeneration

2017-01-0988

03/28/2017

Features
Event
WCX™ 17: SAE World Congress Experience
Authors Abstract
Content
Measuring axial exhaust species concentration distributions within a wall-flow aftertreatment device provides unique and significant insights regarding the performance of complex devices like the SCR-on-filter. In this particular study, a less complex aftertreatment configuration which includes a DOC followed by two uncoated partial flow filters (PFF) was used to demonstrate the potential and challenges. The PFF design in this study was a particulate filter with alternating open and plugged channels. A SpaciMS [1] instrument was used to measure the axial NO2 profiles within adjacent open and plugged channels of each filter element during an extended passive regeneration event using a full-scale engine and catalyst system. By estimating the mass flow through the open and plugged channels, the axial soot load profile history could be assessed. This paper describes the catalyst system, measurement and analysis, and gives insights regarding the spatiotemporal evolution of a passive regeneration event within the PFF system.
Meta TagsDetails
DOI
https://doi.org/10.4271/2017-01-0988
Pages
9
Citation
Cunningham, M., Kim, M., Lakkireddy, V., and Partridge, W., "Axial NO 2 Utilization Measurements within a Partial Flow Filter during Passive Regeneration," SAE Technical Paper 2017-01-0988, 2017, https://doi.org/10.4271/2017-01-0988.
Additional Details
Publisher
Published
Mar 28, 2017
Product Code
2017-01-0988
Content Type
Technical Paper
Language
English