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Extending the Operating Region of Multi-Cylinder Partially Premixed Combustion using High Octane Number Fuel

Lewander, Magnus LU ; Johansson, Bengt LU and Tunestål, Per LU (2011) SAE World Congress & Exhibition, 2011 In SAE Technical Paper Series
Abstract
Partially Premixed Combustion (PPC) is a combustion concept by which it is possible to get low smoke and NOx emissions simultaneously. PPC requires high EGR levels to extend the ignition delay so that air and fuel mix prior to combustion to a larger extent than with conventional diesel combustion. This paper investigates the operating region of single injection PPC for three different fuels; Diesel, low octane gasoline with similar characteristics as diesel and higher octane standard gasoline. Limits in emissions are defined and the highest load that fulfills these requirements is determined. The investigation shows the benefits of using high octane number fuel for Multi-Cylinder PPC. With high octane fuel the ignition delay is made longer... (More)
Partially Premixed Combustion (PPC) is a combustion concept by which it is possible to get low smoke and NOx emissions simultaneously. PPC requires high EGR levels to extend the ignition delay so that air and fuel mix prior to combustion to a larger extent than with conventional diesel combustion. This paper investigates the operating region of single injection PPC for three different fuels; Diesel, low octane gasoline with similar characteristics as diesel and higher octane standard gasoline. Limits in emissions are defined and the highest load that fulfills these requirements is determined. The investigation shows the benefits of using high octane number fuel for Multi-Cylinder PPC. With high octane fuel the ignition delay is made longer and the operating region of single injection PPC can be extended significantly. Experiments are carried out on a multi-cylinder heavy-duty engine at low, medium and high speed. (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, Partially Premixed Combustion, Compression Ignition
in
SAE Technical Paper Series
publisher
Society of Automotive Engineers
conference name
SAE World Congress & Exhibition, 2011
external identifiers
  • other:2011-01-1394
  • scopus:79959812515
ISSN
0148-7191
DOI
10.4271/2011-01-1394
language
English
LU publication?
yes
id
8e1fef7c-7fa4-4e8c-8904-753fb4873d78 (old id 4330882)
alternative location
http://papers.sae.org/2011-01-1394/
date added to LUP
2014-02-25 11:25:30
date last changed
2017-07-30 04:01:43
@inproceedings{8e1fef7c-7fa4-4e8c-8904-753fb4873d78,
  abstract     = {Partially Premixed Combustion (PPC) is a combustion concept by which it is possible to get low smoke and NOx emissions simultaneously. PPC requires high EGR levels to extend the ignition delay so that air and fuel mix prior to combustion to a larger extent than with conventional diesel combustion. This paper investigates the operating region of single injection PPC for three different fuels; Diesel, low octane gasoline with similar characteristics as diesel and higher octane standard gasoline. Limits in emissions are defined and the highest load that fulfills these requirements is determined. The investigation shows the benefits of using high octane number fuel for Multi-Cylinder PPC. With high octane fuel the ignition delay is made longer and the operating region of single injection PPC can be extended significantly. Experiments are carried out on a multi-cylinder heavy-duty engine at low, medium and high speed.},
  author       = {Lewander, Magnus and Johansson, Bengt and Tunestål, Per},
  booktitle    = {SAE Technical Paper Series},
  issn         = {0148-7191},
  keyword      = {Internal Combustion Engines,Partially Premixed Combustion,Compression Ignition},
  language     = {eng},
  publisher    = {Society of Automotive Engineers},
  title        = {Extending the Operating Region of Multi-Cylinder Partially Premixed Combustion using High Octane Number Fuel},
  url          = {http://dx.doi.org/10.4271/2011-01-1394},
  year         = {2011},
}