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Investigation and Comparison of Residual Gas Enhanced HCCI using Trapping (NVO HCCI) or Rebreathing of Residual Gases

Borgqvist, Patrick LU ; Tunestål, Per LU and Johansson, Bengt LU (2011) JSAE/SAE International Fuels & Lubricants Conference In SAE Technical Paper Series
Abstract
A comparison between throttled and unthrottled spark ignition combustion with residual enhanced HCCI combustion is made. Early intake valve closing and late intake valve closing valve strategies for unthrottled spark ignition combustion are evaluated and compared. Approximately 3-6 percent relative improvement in net indicated efficiency is seen when comparing unthrottled spark ignition combustion with throttled spark ignition combustion depending on valve strategy and engine speed. The relative improvement in efficiency from spark ignition combustion to HCCI combustion is approximately 20 percent for the conditions presented in this study. The rebreathing strategies have the highest efficiency of the cases in this study.
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, HCCI, Negative Valve Overlap
in
SAE Technical Paper Series
publisher
Society of Automotive Engineers
conference name
JSAE/SAE International Fuels & Lubricants Conference
external identifiers
  • other:2011-01-1772
  • scopus:84881194105
ISSN
0148-7191
DOI
10.4271/2011-01-1772
language
English
LU publication?
yes
id
088df035-b25c-4746-8412-0230eb260af2 (old id 4330886)
alternative location
http://papers.sae.org/2011-01-1772/
date added to LUP
2014-02-25 11:26:42
date last changed
2017-06-11 04:21:20
@inproceedings{088df035-b25c-4746-8412-0230eb260af2,
  abstract     = {A comparison between throttled and unthrottled spark ignition combustion with residual enhanced HCCI combustion is made. Early intake valve closing and late intake valve closing valve strategies for unthrottled spark ignition combustion are evaluated and compared. Approximately 3-6 percent relative improvement in net indicated efficiency is seen when comparing unthrottled spark ignition combustion with throttled spark ignition combustion depending on valve strategy and engine speed. The relative improvement in efficiency from spark ignition combustion to HCCI combustion is approximately 20 percent for the conditions presented in this study. The rebreathing strategies have the highest efficiency of the cases in this study.},
  author       = {Borgqvist, Patrick and Tunestål, Per and Johansson, Bengt},
  booktitle    = {SAE Technical Paper Series},
  issn         = {0148-7191},
  keyword      = {Internal Combustion Engines,HCCI,Negative Valve Overlap},
  language     = {eng},
  publisher    = {Society of Automotive Engineers},
  title        = {Investigation and Comparison of Residual Gas Enhanced HCCI using Trapping (NVO HCCI) or Rebreathing of Residual Gases},
  url          = {http://dx.doi.org/10.4271/2011-01-1772},
  year         = {2011},
}