Investigation of the combustion characteristics with focus on partially premixed combustion in a heavy duty engine

Magnus Lewander; Kent Ekholm; Bengt Johansson; Per Tunestål; Nebojsa Milovanovic; Nathan Keeler; Tony Harcombe; Pär Bergstrand

doi:10.4271/2008-01-1658

Investigation of the combustion characteristics with focus on partially premixed combustion in a heavy duty engine

Magnus Lewander^*, Kent Ekholm, Bengt Johansson, Per Tunestål, Nebojsa Milovanovic, Nathan Keeler, Tony Harcombe, Pär Bergstrand

^*Corresponding author for this work

Physical Sciences and Engineering

Research output: Contribution to conference › Paper › peer-review

12 Scopus citations

Abstract

Partially Premixed Combustion (PPC) has shown its potential by combining high combustion controllability with emission characteristics that are close to those of an HCCI engine. In order to get PPC the ignition delay needs to be long enough for the fuel and air to mix prior to combustion. This can be achieved by injecting the fuel sufficiently early while running with high EGR. In order to find out where and how PPC occurs a map that shows the changes in combustion characteristics with injection timing and EGR was created. The combustion characteristics were studied in a six cylinder heavy duty engine where the Start of Injection (SOI) was swept from early to late injection over a wide range of EGR levels. The emissions were monitored during the sweeps and in the most promising regions, with low emissions and high efficiency, additional changes in injection pressure and engine speed were applied to get a more versatile picture of the combustion.

Original language	English (US)
DOIs	https://doi.org/10.4271/2008-01-1658
State	Published - Dec 1 2008
Event	2008 SAE International Powertrains, Fuels and Lubricants Congress - Shanghai, China Duration: Jun 23 2008 → Jun 25 2008

Other

Other	2008 SAE International Powertrains, Fuels and Lubricants Congress
Country/Territory	China
City	Shanghai
Period	06/23/08 → 06/25/08

ASJC Scopus subject areas

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

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Lewander, M., Ekholm, K., Johansson, B., Tunestål, P., Milovanovic, N., Keeler, N., Harcombe, T., & Bergstrand, P. (2008). Investigation of the combustion characteristics with focus on partially premixed combustion in a heavy duty engine. Paper presented at 2008 SAE International Powertrains, Fuels and Lubricants Congress, Shanghai, China. https://doi.org/10.4271/2008-01-1658

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title = "Investigation of the combustion characteristics with focus on partially premixed combustion in a heavy duty engine",

abstract = "Partially Premixed Combustion (PPC) has shown its potential by combining high combustion controllability with emission characteristics that are close to those of an HCCI engine. In order to get PPC the ignition delay needs to be long enough for the fuel and air to mix prior to combustion. This can be achieved by injecting the fuel sufficiently early while running with high EGR. In order to find out where and how PPC occurs a map that shows the changes in combustion characteristics with injection timing and EGR was created. The combustion characteristics were studied in a six cylinder heavy duty engine where the Start of Injection (SOI) was swept from early to late injection over a wide range of EGR levels. The emissions were monitored during the sweeps and in the most promising regions, with low emissions and high efficiency, additional changes in injection pressure and engine speed were applied to get a more versatile picture of the combustion.",

author = "Magnus Lewander and Kent Ekholm and Bengt Johansson and Per Tunest{\aa}l and Nebojsa Milovanovic and Nathan Keeler and Tony Harcombe and P{\"a}r Bergstrand",

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Lewander, M, Ekholm, K, Johansson, B, Tunestål, P, Milovanovic, N, Keeler, N, Harcombe, T & Bergstrand, P 2008, 'Investigation of the combustion characteristics with focus on partially premixed combustion in a heavy duty engine', Paper presented at 2008 SAE International Powertrains, Fuels and Lubricants Congress, Shanghai, China, 06/23/08 - 06/25/08. https://doi.org/10.4271/2008-01-1658

TY - CONF

T1 - Investigation of the combustion characteristics with focus on partially premixed combustion in a heavy duty engine

AU - Lewander, Magnus

AU - Ekholm, Kent

AU - Johansson, Bengt

AU - Tunestål, Per

AU - Milovanovic, Nebojsa

AU - Keeler, Nathan

AU - Harcombe, Tony

AU - Bergstrand, Pär

PY - 2008/12/1

Y1 - 2008/12/1

N2 - Partially Premixed Combustion (PPC) has shown its potential by combining high combustion controllability with emission characteristics that are close to those of an HCCI engine. In order to get PPC the ignition delay needs to be long enough for the fuel and air to mix prior to combustion. This can be achieved by injecting the fuel sufficiently early while running with high EGR. In order to find out where and how PPC occurs a map that shows the changes in combustion characteristics with injection timing and EGR was created. The combustion characteristics were studied in a six cylinder heavy duty engine where the Start of Injection (SOI) was swept from early to late injection over a wide range of EGR levels. The emissions were monitored during the sweeps and in the most promising regions, with low emissions and high efficiency, additional changes in injection pressure and engine speed were applied to get a more versatile picture of the combustion.

AB - Partially Premixed Combustion (PPC) has shown its potential by combining high combustion controllability with emission characteristics that are close to those of an HCCI engine. In order to get PPC the ignition delay needs to be long enough for the fuel and air to mix prior to combustion. This can be achieved by injecting the fuel sufficiently early while running with high EGR. In order to find out where and how PPC occurs a map that shows the changes in combustion characteristics with injection timing and EGR was created. The combustion characteristics were studied in a six cylinder heavy duty engine where the Start of Injection (SOI) was swept from early to late injection over a wide range of EGR levels. The emissions were monitored during the sweeps and in the most promising regions, with low emissions and high efficiency, additional changes in injection pressure and engine speed were applied to get a more versatile picture of the combustion.

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U2 - 10.4271/2008-01-1658

DO - 10.4271/2008-01-1658

M3 - Paper

T2 - 2008 SAE International Powertrains, Fuels and Lubricants Congress

Y2 - 23 June 2008 through 25 June 2008

ER -

Investigation of the combustion characteristics with focus on partially premixed combustion in a heavy duty engine

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ASJC Scopus subject areas

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