Investigation and comparison of residual gas enhanced HCCI using trapping (NVO HCCI) or rebreathing of residual gases

Patrick Borgqvist; Per Tunestål; Bengt Johansson

doi:10.4271/2011-01-1772

Investigation and comparison of residual gas enhanced HCCI using trapping (NVO HCCI) or rebreathing of residual gases

Patrick Borgqvist^*, Per Tunestål, Bengt Johansson

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

17 Scopus citations

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.

Original language	English (US)
Title of host publication	SAE Technical Papers
DOIs	https://doi.org/10.4271/2011-01-1772
State	Published - 2011
Externally published	Yes

ASJC Scopus subject areas

Automotive Engineering
Safety, Risk, Reliability and Quality
Pollution
Industrial and Manufacturing Engineering

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10.4271/2011-01-1772

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title = "Investigation and comparison of residual gas enhanced HCCI using trapping (NVO HCCI) or rebreathing of residual gases",

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.",

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AU - Borgqvist, Patrick

AU - Tunestål, Per

AU - Johansson, Bengt

PY - 2011

Y1 - 2011

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84881194105&partnerID=8YFLogxK

U2 - 10.4271/2011-01-1772

DO - 10.4271/2011-01-1772

M3 - Conference contribution

BT - SAE Technical Papers

ER -

Investigation and comparison of residual gas enhanced HCCI using trapping (NVO HCCI) or rebreathing of residual gases

Abstract

ASJC Scopus subject areas

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