Effect of jet-jet interactions on soot formation in a small-bore diesel engine

Minh K. Le; Yilong Zhang; Renlin Zhang; Lingzhe Rao; Sanghoon Kook; Qing Nian Chan; Evatt R. Hawkes

doi:10.1016/j.proci.2016.07.025

Effect of jet-jet interactions on soot formation in a small-bore diesel engine

Minh K. Le, Yilong Zhang, Renlin Zhang, Lingzhe Rao, Sanghoon Kook, Qing Nian Chan, Evatt R. Hawkes

Research output: Contribution to journal › Article › Research › peer-review

25 Citations (Scopus)

Abstract

The planar laser-induced fluorescence of fuel and hydroxyl and incandescence of soot together with morphology and nanostructure information of soot particles sampled via thermophoresis were analyzed to investigate the in-cylinder soot processes under the influence of jet-to-jet interactions. The experiments were conducted in a single-cylinder small-bore optical diesel engine fuelled by a low-sooting methyl decanoate fuel for diagnostic purposes. Two different nozzle configurations of one hole and two holes were used to simulate isolated single-jet and double-jet conditions respectively. Results demonstrated that fuel-rich mixture formed in the jet?jet interaction region caused faster initial growth of soot that persists for a longer period of time compared to the soot formed in the wall-impingement region of the single jet. These soot particles affected by the jet?jet interaction displayed larger aggregates composed of larger primaries and the nanoscale internal structures revealed higher carbon fringe-to-fringe separations. These indicated higher particle reactivity and the formation stage of soot.

Original language	English
Pages (from-to)	3559-3566
Number of pages	8
Journal	Proceedings of the Combustion Institute
Volume	36
Issue number	3
DOIs	https://doi.org/10.1016/j.proci.2016.07.025
Publication status	Published - 2017
Externally published	Yes

Keywords

Diesel engine
Jet-jet interaction
PLII
Soot particles
TEM

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10.1016/j.proci.2016.07.025

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title = "Effect of jet-jet interactions on soot formation in a small-bore diesel engine",

abstract = "The planar laser-induced fluorescence of fuel and hydroxyl and incandescence of soot together with morphology and nanostructure information of soot particles sampled via thermophoresis were analyzed to investigate the in-cylinder soot processes under the influence of jet-to-jet interactions. The experiments were conducted in a single-cylinder small-bore optical diesel engine fuelled by a low-sooting methyl decanoate fuel for diagnostic purposes. Two different nozzle configurations of one hole and two holes were used to simulate isolated single-jet and double-jet conditions respectively. Results demonstrated that fuel-rich mixture formed in the jet?jet interaction region caused faster initial growth of soot that persists for a longer period of time compared to the soot formed in the wall-impingement region of the single jet. These soot particles affected by the jet?jet interaction displayed larger aggregates composed of larger primaries and the nanoscale internal structures revealed higher carbon fringe-to-fringe separations. These indicated higher particle reactivity and the formation stage of soot.",

keywords = "Diesel engine, Jet-jet interaction, PLII, Soot particles, TEM",

author = "Le, {Minh K.} and Yilong Zhang and Renlin Zhang and Lingzhe Rao and Sanghoon Kook and Chan, {Qing Nian} and Hawkes, {Evatt R.}",

note = "Funding Information: Experiments were conducted at the UNSW Engine Research Laboratory, Sydney, Australia. Support for this research was provided by the U.S. Navy and in part by the Australian Research Council via Discovery Project.",

year = "2017",

doi = "10.1016/j.proci.2016.07.025",

language = "English",

volume = "36",

pages = "3559--3566",

journal = "Proceedings of the Combustion Institute",

issn = "1540-7489",

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TY - JOUR

T1 - Effect of jet-jet interactions on soot formation in a small-bore diesel engine

AU - Le, Minh K.

AU - Zhang, Yilong

AU - Zhang, Renlin

AU - Rao, Lingzhe

AU - Kook, Sanghoon

AU - Chan, Qing Nian

AU - Hawkes, Evatt R.

N1 - Funding Information: Experiments were conducted at the UNSW Engine Research Laboratory, Sydney, Australia. Support for this research was provided by the U.S. Navy and in part by the Australian Research Council via Discovery Project.

PY - 2017

Y1 - 2017

N2 - The planar laser-induced fluorescence of fuel and hydroxyl and incandescence of soot together with morphology and nanostructure information of soot particles sampled via thermophoresis were analyzed to investigate the in-cylinder soot processes under the influence of jet-to-jet interactions. The experiments were conducted in a single-cylinder small-bore optical diesel engine fuelled by a low-sooting methyl decanoate fuel for diagnostic purposes. Two different nozzle configurations of one hole and two holes were used to simulate isolated single-jet and double-jet conditions respectively. Results demonstrated that fuel-rich mixture formed in the jet?jet interaction region caused faster initial growth of soot that persists for a longer period of time compared to the soot formed in the wall-impingement region of the single jet. These soot particles affected by the jet?jet interaction displayed larger aggregates composed of larger primaries and the nanoscale internal structures revealed higher carbon fringe-to-fringe separations. These indicated higher particle reactivity and the formation stage of soot.

AB - The planar laser-induced fluorescence of fuel and hydroxyl and incandescence of soot together with morphology and nanostructure information of soot particles sampled via thermophoresis were analyzed to investigate the in-cylinder soot processes under the influence of jet-to-jet interactions. The experiments were conducted in a single-cylinder small-bore optical diesel engine fuelled by a low-sooting methyl decanoate fuel for diagnostic purposes. Two different nozzle configurations of one hole and two holes were used to simulate isolated single-jet and double-jet conditions respectively. Results demonstrated that fuel-rich mixture formed in the jet?jet interaction region caused faster initial growth of soot that persists for a longer period of time compared to the soot formed in the wall-impingement region of the single jet. These soot particles affected by the jet?jet interaction displayed larger aggregates composed of larger primaries and the nanoscale internal structures revealed higher carbon fringe-to-fringe separations. These indicated higher particle reactivity and the formation stage of soot.

KW - Diesel engine

KW - Jet-jet interaction

KW - PLII

KW - Soot particles

KW - TEM

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DO - 10.1016/j.proci.2016.07.025

M3 - Article

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SN - 1540-7489

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SP - 3559

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JO - Proceedings of the Combustion Institute

JF - Proceedings of the Combustion Institute

IS - 3

ER -

Effect of jet-jet interactions on soot formation in a small-bore diesel engine

Abstract

Keywords

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