Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/107582
Title: | Modelling particle mass and particle number emissions during the active regeneration of diesel particulate filters | Authors: | Lao, Chung Ting Akroyd, Jethro Eaves, Nickolas Smith, Alastair Morgan, Neal Bhave, Amit Kraft, Markus |
Keywords: | Engineering::Chemical engineering Regeneration Diesel Particulate Filter (DPF) |
Issue Date: | 2019 | Source: | Lao, C. T., Akroyd, J., Eaves, N., Smith, A., Morgan, N., Bhave, A., & Kraft, M. (2019). Modelling particle mass and particle number emissions during the active regeneration of diesel particulate filters. Proceedings of the Combustion Institute, 37(4), 4831-4838. doi:10.1016/j.proci.2018.07.079 | Journal: | Proceedings of the Combustion Institute | Abstract: | A new model has been developed to describe the size-dependent e ects that are responsible for transient particle mass (PM) and particle number (PN) emissions observed during experiments of the active regeneration of Diesel Particulate Filters (DPFs). The model uses a population balance approach to describe the size of the particles entering and leaving the DPF, and accumulated within it. The population balance is coupled to a unit collector model that describes the filtration of the particles in the porous walls of the DPF and a reactor network model that is used to describe the geometry of the DPF. Two versions of the unit collector model were investigated. The original version, based on current literature, and an extended version, developed in this work, that includes terms to describe both the non-uniform regeneration of the cake and thermal expansion of the pores in the DPF. Simulations using the original unit collector model were able to provide a good description of the pressure drop and PM filtration e ciency during the loading of the DPF, but were unable to adequately describe the change in filtration e ciency during regeneration of the DPF. The introduction of the extended unit collector description enabled the model to describe both the timing of particle breakthrough and the final steady filtration e ciency of the hot regenerated DPF. Further work is required to understand better the transient behaviour of the system. In particular, we stress the importance that future experiments fully characterise the particle size distribution at both the inlet and outlet of the DPF. | URI: | https://hdl.handle.net/10356/107582 http://hdl.handle.net/10220/50335 |
ISSN: | 1540-7489 | DOI: | 10.1016/j.proci.2018.07.079 | Schools: | School of Chemical and Biomedical Engineering | Rights: | © 2019 Elsevier. All rights reserved. This paper was published in Proceedings of the Combustion Institute and is made available with permission of Elsevier. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SCBE Journal Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Modelling Particle Mass and Particle Number Emissions during the Active ...pdf | 2.08 MB | Adobe PDF | View/Open |
SCOPUSTM
Citations
10
40
Updated on Mar 21, 2024
Web of ScienceTM
Citations
10
34
Updated on Oct 25, 2023
Page view(s)
312
Updated on Mar 29, 2024
Download(s) 50
95
Updated on Mar 29, 2024
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.