Experimental Study on the Flow Field of Particles Deposited on a Gasoline Particulate Filter

Mingfei Mu, Jonas Sjöblom, Nikhil Sharma, Henrik Ström and Xinghu Li
Additional contact information
Mingfei Mu: School of Transportation Science and Engineering, Beihang University, Beijing 100083, China
Jonas Sjöblom: Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Göteborg SE-41296, Sweden
Nikhil Sharma: Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Göteborg SE-41296, Sweden
Henrik Ström: Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Göteborg SE-41296, Sweden
Xinghu Li: School of Transportation Science and Engineering, Beihang University, Beijing 100083, China

Energies, 2019, vol. 12, issue 14, 1-18

Abstract: The abatement of particulate matter in gasoline vehicle exhaust has prompted the development of gasoline particulate filters (GPFs). The spatial distribution of the deposited particles inside a GPF has profound implications for its regeneration behavior, ash-induced aging, and multiscale modeling efforts. The connection cones will affect the flow into the monolith and the package structure needed to meet the system space requirements. In this paper, nonuniform rational B-splines (NURBSs) were applied to the cone design to optimize the flow uniformity and particle distribution inside a gasoline particulate filter. NURBS and conventional cones were manufactured using 3D printing, and the velocity profiles and pressure drops were measured under the loading of synthetic particles. The results shows that the cone shape will influence the pressure drop and the velocity profile, which is evaluated as the uniformity index. The test results indicate that better performance is achieved when using the NURBS cone, especially at low particle loads. The results also show that the cone shape (which determines the velocity profile) influences the particle deposition distribution, although the apparent pressure drops are similar. These results are important for exhaust aftertreatment system (EATS) design and optimization, where the NURBS cone can improve flow uniformity, which causes better particle deposition distribution and lower pressure drop.

Keywords: flow uniformity; connection cone; nonuniform rational B-splines (NURBS); pressure drop; PM deposition distribution (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/14/2701/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/14/2701/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:14:p:2701-:d:248500

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().