2024-03-29T09:03:45Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00017961
2023-01-16T04:06:17Z
320:321:322
Experimental study of hexagonal and square diesel particulate filters under controlled and uncontrolled catalyzed regeneration
Tsuneyoshi, Koji
Yamamoto, Kazuhiro
open access
This is the author's version of a work that was accepted for publication in Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms, may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Energy. v.60, 2013, p.325–332, DOI: http://dx.doi.org/10.1016/j.energy.2013.07.069
Catalytic combustion
Soot
Oxidation
Diesel particulate filter
Regeneration
Although diesel engines have high thermal efficiency, large amounts of PM (particulate matter) including soot are emitted. A wall-flow DPF (diesel particulate filter) is one of the most important technologies for diesel emission control. However, the soot accumulation inside the DPF causes an increase of pressure loss. Then, the accumulated diesel soot needs to be burned, which is called a filer regeneration process. In this study, we have investigated the soot combustion on bare and catalyzed DPFs under controlled and uncontrolled regeneration. Two types of DPFs with conventional square and hexagonal cells were used. Results show that, in comparison with the bare DPF, the regeneration efficiency of the catalyzed DPF is clearly higher, indicating a marked effect of catalysts. Independent of regeneration temperature, a greater increase in the regeneration efficiency of the catalyzed DPF was confirmed under controlled regeneration. On the other hand, under uncontrolled regeneration, the maximum temperature of the catalyzed DPF is higher than that of the bare DPF, and it is reached shorter times. Interestingly, by comparing the conventional square cell DPF, the soot oxidation of the hexagonal cell DPF is promoted under controlled and uncontrolled regeneration.
Elsevier
2013-10
eng
journal article
AM
http://hdl.handle.net/2237/20050
https://nagoya.repo.nii.ac.jp/records/17961
https://doi.org/10.1016/j.energy.2013.07.069
0360-5442
Energy
60
325
332
https://nagoya.repo.nii.ac.jp/record/17961/files/118.pdf
application/pdf
583.0 kB
2018-02-21