Characterization of partially premixed combustion

Christof Noehre; Magnus Andersson; Bengt Johansson; Anders Hultqvist

doi:10.4271/2006-01-3412

Characterization of partially premixed combustion

Christof Noehre^*, Magnus Andersson, Bengt Johansson, Anders Hultqvist

^*Corresponding author for this work

Physical Sciences and Engineering

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

207 Scopus citations

Abstract

Partially Premixed Combustion (PPC) provides the potential of simultaneous reduction of NOx and soot for diesel engines. This work attempts to characterize the operating range and conditions required for PPC. The characterization is based on the evaluation of emission and in-cylinder measurement data of engine experiments. It is shown that the combination of low compression ratio, high EGR rate and engine operation close to stoichiometric conditions enables simultaneous NOx and soot reduction at loads of 8bar, 12bar, and 15bar IMEP gross. The departure from the conventional NOx-soot trade-off curve has to be paid with a decline in combustion efficiency and a rise in HC and CO emissions. It is shown that the low soot levels of PPC come along with long ignition delay and low combustion temperature. A further result of this work is that higher inlet pressure broadens the operating range of Partially Premixed Combustion.

Original language	English (US)
DOIs	https://doi.org/10.4271/2006-01-3412
State	Published - Dec 1 2006
Event	Powertrain and Fluid Systems Conference and Exhibition - Toronto, ON, Canada Duration: Oct 16 2006 → Oct 19 2006

Other

Other	Powertrain and Fluid Systems Conference and Exhibition
Country/Territory	Canada
City	Toronto, ON
Period	10/16/06 → 10/19/06

ASJC Scopus subject areas

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

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title = "Characterization of partially premixed combustion",

abstract = "Partially Premixed Combustion (PPC) provides the potential of simultaneous reduction of NOx and soot for diesel engines. This work attempts to characterize the operating range and conditions required for PPC. The characterization is based on the evaluation of emission and in-cylinder measurement data of engine experiments. It is shown that the combination of low compression ratio, high EGR rate and engine operation close to stoichiometric conditions enables simultaneous NOx and soot reduction at loads of 8bar, 12bar, and 15bar IMEP gross. The departure from the conventional NOx-soot trade-off curve has to be paid with a decline in combustion efficiency and a rise in HC and CO emissions. It is shown that the low soot levels of PPC come along with long ignition delay and low combustion temperature. A further result of this work is that higher inlet pressure broadens the operating range of Partially Premixed Combustion.",

author = "Christof Noehre and Magnus Andersson and Bengt Johansson and Anders Hultqvist",

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doi = "10.4271/2006-01-3412",

language = "English (US)",

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T1 - Characterization of partially premixed combustion

AU - Noehre, Christof

AU - Andersson, Magnus

AU - Johansson, Bengt

AU - Hultqvist, Anders

PY - 2006/12/1

Y1 - 2006/12/1

N2 - Partially Premixed Combustion (PPC) provides the potential of simultaneous reduction of NOx and soot for diesel engines. This work attempts to characterize the operating range and conditions required for PPC. The characterization is based on the evaluation of emission and in-cylinder measurement data of engine experiments. It is shown that the combination of low compression ratio, high EGR rate and engine operation close to stoichiometric conditions enables simultaneous NOx and soot reduction at loads of 8bar, 12bar, and 15bar IMEP gross. The departure from the conventional NOx-soot trade-off curve has to be paid with a decline in combustion efficiency and a rise in HC and CO emissions. It is shown that the low soot levels of PPC come along with long ignition delay and low combustion temperature. A further result of this work is that higher inlet pressure broadens the operating range of Partially Premixed Combustion.

AB - Partially Premixed Combustion (PPC) provides the potential of simultaneous reduction of NOx and soot for diesel engines. This work attempts to characterize the operating range and conditions required for PPC. The characterization is based on the evaluation of emission and in-cylinder measurement data of engine experiments. It is shown that the combination of low compression ratio, high EGR rate and engine operation close to stoichiometric conditions enables simultaneous NOx and soot reduction at loads of 8bar, 12bar, and 15bar IMEP gross. The departure from the conventional NOx-soot trade-off curve has to be paid with a decline in combustion efficiency and a rise in HC and CO emissions. It is shown that the low soot levels of PPC come along with long ignition delay and low combustion temperature. A further result of this work is that higher inlet pressure broadens the operating range of Partially Premixed Combustion.

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DO - 10.4271/2006-01-3412

M3 - Paper

T2 - Powertrain and Fluid Systems Conference and Exhibition

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ER -

Characterization of partially premixed combustion

Abstract

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