Chemical kinetic investigations of ignition and combustion phenomena in a DI diesel engine fueled with methanol (1st report, Ignition characteristics of methanol mixtures)

Jin Kusaka, Yasuhiro Daisho, Takeshi Saito

Research output: Contribution to journalArticle

Abstract

A methanol-fueled direct-injection diesel engine with a glow-assisted ignition system tends to suffer from poor ignitability under low load conditions. Chemical delay phenomena associated with methanol mixture ignition were investigated to improve ignitability. Effects of vaporization heat of liquid methanol, surface temperature of the glow-plug, heat provided from the glow-plug and the effect of O2 excess ratio of methanol-air mixtures on ignition characteristics were examined. Our numerical model accounted for these parameters and detailed chemical kinetic schemes, including 39 chemical species and 157 elementary reactions, were used to predict the delay of methanol mixture ignition.

Original languageEnglish
Pages (from-to)3683-3688
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume62
Issue number602
Publication statusPublished - 1996 Oct
Externally publishedYes

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diesel engines
Reaction kinetics
ignition
Ignition
Diesel engines
reaction kinetics
Methanol
methyl alcohol
Glow plugs
heat of vaporization
luminescence
plugs
ignition systems
Ignition systems
Direct injection
Vaporization
surface temperature
Numerical models
injection
heat

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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abstract = "A methanol-fueled direct-injection diesel engine with a glow-assisted ignition system tends to suffer from poor ignitability under low load conditions. Chemical delay phenomena associated with methanol mixture ignition were investigated to improve ignitability. Effects of vaporization heat of liquid methanol, surface temperature of the glow-plug, heat provided from the glow-plug and the effect of O2 excess ratio of methanol-air mixtures on ignition characteristics were examined. Our numerical model accounted for these parameters and detailed chemical kinetic schemes, including 39 chemical species and 157 elementary reactions, were used to predict the delay of methanol mixture ignition.",
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AU - Daisho, Yasuhiro

AU - Saito, Takeshi

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N2 - A methanol-fueled direct-injection diesel engine with a glow-assisted ignition system tends to suffer from poor ignitability under low load conditions. Chemical delay phenomena associated with methanol mixture ignition were investigated to improve ignitability. Effects of vaporization heat of liquid methanol, surface temperature of the glow-plug, heat provided from the glow-plug and the effect of O2 excess ratio of methanol-air mixtures on ignition characteristics were examined. Our numerical model accounted for these parameters and detailed chemical kinetic schemes, including 39 chemical species and 157 elementary reactions, were used to predict the delay of methanol mixture ignition.

AB - A methanol-fueled direct-injection diesel engine with a glow-assisted ignition system tends to suffer from poor ignitability under low load conditions. Chemical delay phenomena associated with methanol mixture ignition were investigated to improve ignitability. Effects of vaporization heat of liquid methanol, surface temperature of the glow-plug, heat provided from the glow-plug and the effect of O2 excess ratio of methanol-air mixtures on ignition characteristics were examined. Our numerical model accounted for these parameters and detailed chemical kinetic schemes, including 39 chemical species and 157 elementary reactions, were used to predict the delay of methanol mixture ignition.

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