Turbulent premixed flames in closed combustion chambers

Yoshisuke Hamamoto; Eiji Tomita; Sadami Yoshiyama

doi:10.1299/kikaib.59.941

Turbulent premixed flames in closed combustion chambers

Yoshisuke Hamamoto, Eiji Tomita, Sadami Yoshiyama

Graduate School of Natural Science and Technology

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

Abstract

A thick Burning zone including unburned and burned gas is observed in the turbulent premixed flames. In this study, the burning rate and the ion-current in the burning zone were investigated in propane-air turbulent flames in a spark-ignition engine cylinder and a constant volume combustion chamber. The main results are as follows : (1) In propagating turbulent flame, the rate of mass burned is not equal to the rate of mass entrainment to the flame front. (2) The ratio of the combustion rate per unit area of turbulent flame front to that of laminar flame, Z=(M_bT/A_T)/(M_bL/_AL), is a reasonable expression of the effect of turbulence on the combustion of propagating flame. (3) The ion-current signal has multiple peaks in the turbulent flame. The average number of ion-current peaks increases with the enlargement of burning zone and the value of Z.

Original language	English
Pages (from-to)	941-945
Number of pages	5
Journal	Transactions of the Japan Society of Mechanical Engineers Series B
Volume	59
Issue number	559
DOIs	https://doi.org/10.1299/kikaib.59.941
Publication status	Published - 1993

Keywords

Burning Velocity
Combustion
Combustion Measurement
Combustion Phenomena
Gasoline Engine
Internal Combustion Engine
Premixed Combustion
Spark-ignition Engine
Turbulent Flame

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.59.941

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@article{d26749fc71254e2493b769502239a970,

title = "Turbulent premixed flames in closed combustion chambers",

abstract = "A thick Burning zone including unburned and burned gas is observed in the turbulent premixed flames. In this study, the burning rate and the ion-current in the burning zone were investigated in propane-air turbulent flames in a spark-ignition engine cylinder and a constant volume combustion chamber. The main results are as follows : (1) In propagating turbulent flame, the rate of mass burned is not equal to the rate of mass entrainment to the flame front. (2) The ratio of the combustion rate per unit area of turbulent flame front to that of laminar flame, Z=(MbT/AT)/(MbL/AL), is a reasonable expression of the effect of turbulence on the combustion of propagating flame. (3) The ion-current signal has multiple peaks in the turbulent flame. The average number of ion-current peaks increases with the enlargement of burning zone and the value of Z.",

keywords = "Burning Velocity, Combustion, Combustion Measurement, Combustion Phenomena, Gasoline Engine, Internal Combustion Engine, Premixed Combustion, Spark-ignition Engine, Turbulent Flame",

author = "Yoshisuke Hamamoto and Eiji Tomita and Sadami Yoshiyama",

year = "1993",

doi = "10.1299/kikaib.59.941",

language = "English",

volume = "59",

pages = "941--945",

journal = "Transactions of the Japan Society of Mechanical Engineers Series B",

issn = "0387-5016",

publisher = "Japan Society of Mechanical Engineers",

number = "559",

}

TY - JOUR

T1 - Turbulent premixed flames in closed combustion chambers

AU - Hamamoto, Yoshisuke

AU - Tomita, Eiji

AU - Yoshiyama, Sadami

PY - 1993

Y1 - 1993

N2 - A thick Burning zone including unburned and burned gas is observed in the turbulent premixed flames. In this study, the burning rate and the ion-current in the burning zone were investigated in propane-air turbulent flames in a spark-ignition engine cylinder and a constant volume combustion chamber. The main results are as follows : (1) In propagating turbulent flame, the rate of mass burned is not equal to the rate of mass entrainment to the flame front. (2) The ratio of the combustion rate per unit area of turbulent flame front to that of laminar flame, Z=(MbT/AT)/(MbL/AL), is a reasonable expression of the effect of turbulence on the combustion of propagating flame. (3) The ion-current signal has multiple peaks in the turbulent flame. The average number of ion-current peaks increases with the enlargement of burning zone and the value of Z.

AB - A thick Burning zone including unburned and burned gas is observed in the turbulent premixed flames. In this study, the burning rate and the ion-current in the burning zone were investigated in propane-air turbulent flames in a spark-ignition engine cylinder and a constant volume combustion chamber. The main results are as follows : (1) In propagating turbulent flame, the rate of mass burned is not equal to the rate of mass entrainment to the flame front. (2) The ratio of the combustion rate per unit area of turbulent flame front to that of laminar flame, Z=(MbT/AT)/(MbL/AL), is a reasonable expression of the effect of turbulence on the combustion of propagating flame. (3) The ion-current signal has multiple peaks in the turbulent flame. The average number of ion-current peaks increases with the enlargement of burning zone and the value of Z.

KW - Burning Velocity

KW - Combustion

KW - Combustion Measurement

KW - Combustion Phenomena

KW - Gasoline Engine

KW - Internal Combustion Engine

KW - Premixed Combustion

KW - Spark-ignition Engine

KW - Turbulent Flame

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JF - Transactions of the Japan Society of Mechanical Engineers Series B

IS - 559

ER -

Turbulent premixed flames in closed combustion chambers

Abstract

Keywords

ASJC Scopus subject areas

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