A consideration of aútoignition timing of alternative low carbon number fuels in 2-stroke ATAC engine

Norimasa Iida, Shiro Yamaoka, Hajime Oguma

研究成果: Article

抄録

ATAC (Active Thermo-Atmosphere Combustion) is autoignition combustion in two stroke engines, which occurs by diluting fresh gas with residual gas to keep high temperature at low load operation. In this study, a two-stroke ATAC engine test was carried out to obtain fundamental knowledge for controlling the autoignition and combustion characteristics in the premixed charged compression-ignition lean combustion engine. The influences of delivery ratio, equivalence ratio and adiabatic compression speed on autoignition timing, autoignition temperature and combustion duration were investigated. ATAC autoignition temperature and combustion duration do not depend on delivery ratio and equivalence ratio, but is determined by the individual fuel characteristics. Increasing adiabatic compression speed, ATAC autoignition temperature was lowered. ATAC autoignition occurs at the crank angle when the mass-averaged temperature of the mixture reached a constant temperature that belongs to the individual fuel. Then autoignition timing depends on mass-averaged temperature at port closing timing. But over a certain limitation of delivery ratio, autoignition does not occur nevertheless the temperature at this timing is same, we have to analyze more about this result.

元の言語English
ページ(範囲)4144-4151
ページ数8
ジャーナルNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
65
発行部数640
出版物ステータスPublished - 1999 12

Fingerprint

spontaneous combustion
strokes
engines
time measurement
Engines
atmospheres
Carbon
carbon
delivery
Temperature
temperature
equivalence
engine tests
residual gas
eccentrics
closing
Gases
ignition
Ignition
Compaction

ASJC Scopus subject areas

  • Mechanical Engineering
  • Condensed Matter Physics

これを引用

@article{95eea61d2c6d4450b040aef2b8e473d8,
title = "A consideration of a{\'u}toignition timing of alternative low carbon number fuels in 2-stroke ATAC engine",
abstract = "ATAC (Active Thermo-Atmosphere Combustion) is autoignition combustion in two stroke engines, which occurs by diluting fresh gas with residual gas to keep high temperature at low load operation. In this study, a two-stroke ATAC engine test was carried out to obtain fundamental knowledge for controlling the autoignition and combustion characteristics in the premixed charged compression-ignition lean combustion engine. The influences of delivery ratio, equivalence ratio and adiabatic compression speed on autoignition timing, autoignition temperature and combustion duration were investigated. ATAC autoignition temperature and combustion duration do not depend on delivery ratio and equivalence ratio, but is determined by the individual fuel characteristics. Increasing adiabatic compression speed, ATAC autoignition temperature was lowered. ATAC autoignition occurs at the crank angle when the mass-averaged temperature of the mixture reached a constant temperature that belongs to the individual fuel. Then autoignition timing depends on mass-averaged temperature at port closing timing. But over a certain limitation of delivery ratio, autoignition does not occur nevertheless the temperature at this timing is same, we have to analyze more about this result.",
keywords = "Alternative fuel, Autoignition, Butane, Combustion, DEE, DME, Ethanol, Internal combustion engine, Methanol, MTBE, Residual gas, Two stroke engine",
author = "Norimasa Iida and Shiro Yamaoka and Hajime Oguma",
year = "1999",
month = "12",
language = "English",
volume = "65",
pages = "4144--4151",
journal = "Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B",
issn = "0387-5016",
publisher = "Japan Society of Mechanical Engineers",
number = "640",

}

TY - JOUR

T1 - A consideration of aútoignition timing of alternative low carbon number fuels in 2-stroke ATAC engine

AU - Iida, Norimasa

AU - Yamaoka, Shiro

AU - Oguma, Hajime

PY - 1999/12

Y1 - 1999/12

N2 - ATAC (Active Thermo-Atmosphere Combustion) is autoignition combustion in two stroke engines, which occurs by diluting fresh gas with residual gas to keep high temperature at low load operation. In this study, a two-stroke ATAC engine test was carried out to obtain fundamental knowledge for controlling the autoignition and combustion characteristics in the premixed charged compression-ignition lean combustion engine. The influences of delivery ratio, equivalence ratio and adiabatic compression speed on autoignition timing, autoignition temperature and combustion duration were investigated. ATAC autoignition temperature and combustion duration do not depend on delivery ratio and equivalence ratio, but is determined by the individual fuel characteristics. Increasing adiabatic compression speed, ATAC autoignition temperature was lowered. ATAC autoignition occurs at the crank angle when the mass-averaged temperature of the mixture reached a constant temperature that belongs to the individual fuel. Then autoignition timing depends on mass-averaged temperature at port closing timing. But over a certain limitation of delivery ratio, autoignition does not occur nevertheless the temperature at this timing is same, we have to analyze more about this result.

AB - ATAC (Active Thermo-Atmosphere Combustion) is autoignition combustion in two stroke engines, which occurs by diluting fresh gas with residual gas to keep high temperature at low load operation. In this study, a two-stroke ATAC engine test was carried out to obtain fundamental knowledge for controlling the autoignition and combustion characteristics in the premixed charged compression-ignition lean combustion engine. The influences of delivery ratio, equivalence ratio and adiabatic compression speed on autoignition timing, autoignition temperature and combustion duration were investigated. ATAC autoignition temperature and combustion duration do not depend on delivery ratio and equivalence ratio, but is determined by the individual fuel characteristics. Increasing adiabatic compression speed, ATAC autoignition temperature was lowered. ATAC autoignition occurs at the crank angle when the mass-averaged temperature of the mixture reached a constant temperature that belongs to the individual fuel. Then autoignition timing depends on mass-averaged temperature at port closing timing. But over a certain limitation of delivery ratio, autoignition does not occur nevertheless the temperature at this timing is same, we have to analyze more about this result.

KW - Alternative fuel

KW - Autoignition

KW - Butane

KW - Combustion

KW - DEE

KW - DME

KW - Ethanol

KW - Internal combustion engine

KW - Methanol

KW - MTBE

KW - Residual gas

KW - Two stroke engine

UR - http://www.scopus.com/inward/record.url?scp=71249121890&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71249121890&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:71249121890

VL - 65

SP - 4144

EP - 4151

JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

SN - 0387-5016

IS - 640

ER -