Stability of autoignition and combustion in low-heat-rejection, ceramic methanol ATAC engine (Analysis of cyclic variation at high wall temperature and lean burn)

Norimasa Iida, Takayoshi Ichikura, Kazufumi Kase, Yoshiteru Enomoto

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

ATAC (Active Thermo-Atmosphere Combustion) is stable in the lean limit, because it is `bulk-like' and/or `nonpropagating' combustion caused by self-ignition. In a low-heat-rejection methanol-fueled engine, we investigated the influence of ATAC operation with weakening premixed gas and raising temperature of the combustion chamber wall on cyclic variation of ignition and combustion. We analyzed the cyclic variation of autoignition timing, combustion duration, combustion quantity and instantaneous heat flux on the wall of the combustion chamber, from which we clarified the correlation between autoignition timing and combustion duration, autoignition timing and combustion quantity, and combustion duration and combustion quantity.

Original languageEnglish
Pages (from-to)3469-3476
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume63
Issue number614
Publication statusPublished - 1997 Oct
Externally publishedYes

Fingerprint

spontaneous combustion
wall temperature
rejection
engines
Methanol
methyl alcohol
ceramics
Engines
atmospheres
heat
Temperature
time measurement
combustion chambers
Combustion chambers
Ignition
Hot Temperature
gas temperature
ignition
Heat flux
heat flux

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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T1 - Stability of autoignition and combustion in low-heat-rejection, ceramic methanol ATAC engine (Analysis of cyclic variation at high wall temperature and lean burn)

AU - Iida, Norimasa

AU - Ichikura, Takayoshi

AU - Kase, Kazufumi

AU - Enomoto, Yoshiteru

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N2 - ATAC (Active Thermo-Atmosphere Combustion) is stable in the lean limit, because it is `bulk-like' and/or `nonpropagating' combustion caused by self-ignition. In a low-heat-rejection methanol-fueled engine, we investigated the influence of ATAC operation with weakening premixed gas and raising temperature of the combustion chamber wall on cyclic variation of ignition and combustion. We analyzed the cyclic variation of autoignition timing, combustion duration, combustion quantity and instantaneous heat flux on the wall of the combustion chamber, from which we clarified the correlation between autoignition timing and combustion duration, autoignition timing and combustion quantity, and combustion duration and combustion quantity.

AB - ATAC (Active Thermo-Atmosphere Combustion) is stable in the lean limit, because it is `bulk-like' and/or `nonpropagating' combustion caused by self-ignition. In a low-heat-rejection methanol-fueled engine, we investigated the influence of ATAC operation with weakening premixed gas and raising temperature of the combustion chamber wall on cyclic variation of ignition and combustion. We analyzed the cyclic variation of autoignition timing, combustion duration, combustion quantity and instantaneous heat flux on the wall of the combustion chamber, from which we clarified the correlation between autoignition timing and combustion duration, autoignition timing and combustion quantity, and combustion duration and combustion quantity.

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