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A Correlation Analysis of the Roles of Soot Formation and Oxidation in a Heavy-Duty Diesel Engine

Lequien, Guillaume LU ; Andersson, Öivind LU ; Tunestål, Per LU and Lewander, Magnus (2013) SAE/KSAE , International Powertrains, Fuels & Lubricants Meeting, 2013
Abstract
Emissions and in-cylinder pressure traces are used to compare the relative importance of soot formation and soot oxidation in a heavy-duty diesel engine. The equivalence ratio at the lift-off length is estimated with an empirical correlation and an idealized model of diesel spray. No correlation is found between the equivalence ratio at lift-off and the soot emissions. This confirms that trends in soot emissions cannot be directly understood by the soot formation process. The coupling between soot emission levels and late heat release after end of injection is also studied. A regression model describing soot emissions as function of global engine parameters influencing soot oxidation is proposed. Overall, the results of this analysis... (More)
Emissions and in-cylinder pressure traces are used to compare the relative importance of soot formation and soot oxidation in a heavy-duty diesel engine. The equivalence ratio at the lift-off length is estimated with an empirical correlation and an idealized model of diesel spray. No correlation is found between the equivalence ratio at lift-off and the soot emissions. This confirms that trends in soot emissions cannot be directly understood by the soot formation process. The coupling between soot emission levels and late heat release after end of injection is also studied. A regression model describing soot emissions as function of global engine parameters influencing soot oxidation is proposed. Overall, the results of this analysis indicate that soot emissions can be understood in terms of the efficiency of the oxidation process. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Internal Combustion Engines, Diesel Engines, Particulate Matter, Soot, Correlation
host publication
SAE Technical Paper Series
publisher
Society of Automotive Engineers
conference name
SAE/KSAE , International Powertrains, Fuels & Lubricants Meeting, 2013
conference location
Soeul, Korea, Republic of
conference dates
2013-10-21 - 2013-10-23
external identifiers
  • other:2013-01-2535
  • scopus:84890395045
ISSN
0148-7191
DOI
10.4271/2013-01-2535
project
Competence Centre for Combustion Processes
language
English
LU publication?
yes
id
ca7bb309-5ad4-4930-9810-774c4cf18d12 (old id 4318378)
alternative location
http://papers.sae.org/2013-01-2535/
date added to LUP
2016-04-01 13:21:57
date last changed
2020-01-15 03:38:51
@inproceedings{ca7bb309-5ad4-4930-9810-774c4cf18d12,
  abstract     = {Emissions and in-cylinder pressure traces are used to compare the relative importance of soot formation and soot oxidation in a heavy-duty diesel engine. The equivalence ratio at the lift-off length is estimated with an empirical correlation and an idealized model of diesel spray. No correlation is found between the equivalence ratio at lift-off and the soot emissions. This confirms that trends in soot emissions cannot be directly understood by the soot formation process. The coupling between soot emission levels and late heat release after end of injection is also studied. A regression model describing soot emissions as function of global engine parameters influencing soot oxidation is proposed. Overall, the results of this analysis indicate that soot emissions can be understood in terms of the efficiency of the oxidation process.},
  author       = {Lequien, Guillaume and Andersson, Öivind and Tunestål, Per and Lewander, Magnus},
  booktitle    = {SAE Technical Paper Series},
  issn         = {0148-7191},
  language     = {eng},
  publisher    = {Society of Automotive Engineers},
  title        = {A Correlation Analysis of the Roles of Soot Formation and Oxidation in a Heavy-Duty Diesel Engine},
  url          = {http://dx.doi.org/10.4271/2013-01-2535},
  doi          = {10.4271/2013-01-2535},
  year         = {2013},
}