Correlation of Spark Ignition with the Local Instantaneous Mixture Fraction in a Turbulent Nonpremixed Methane Jet

被引：22

作者：

Ahmed, S. F. ^{[1
]}

Mastorakos, E. ^{[2
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi Arabia

[2] Univ Cambridge, Dept Engn, Hopkinson Lab, Cambridge CB2 1PZ, England

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 2010年 / 182卷 / 09期

关键词：

Local mixture fraction; Spark emission; Spark ignition; Turbulent jet; FORCED IGNITION;

D O I：

10.1080/00102201003730984

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The correlation between spark success in a turbulent nonpremixed methane jet flame and the mixture fraction at the spark location is examined by monitoring spark emission, from which the mixture fraction, integrated over the spark volume and duration, can be determined after calibration. It was found that ignition of the whole jet flame can be achieved even if nominally nonflammable mixture is sparked and that sparking flammable mixture does not always result in ignition.

引用

页码：1360 / 1368

页数：9

共 18 条

[1] Measurements of ignition probability in turbulent non-premixed counterflow flames [J].

Ahmed, S. F. ;

Balachandran, R. ;

Mastorakos, E. .

PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2007, 31 :1507-1513

[2] Spark ignition of turbulent nonpremixed bluff-body flames [J].

Ahmed, S. F. ;

Balachandran, R. ;

Marchione, T. ;

Mastorakos, E. .

COMBUSTION AND FLAME, 2007, 151 (1-2) :366-385

[3] Spark ignition of lifted turbulent jet flames [J].

Ahmed, S. F. ;

Mastorakos, E. .

COMBUSTION AND FLAME, 2006, 146 (1-2) :215-231

[4]

[Anonymous], P COMBUST I

[5]

Ballal D.R., 1981, P COMBUST INST, V18, P1737, DOI DOI 10.1016/S0082-0784(81)80178-6

[6] Effects of mean flow on premixed flame ignition [J].

Baum, M ;

Poinsot, T .

COMBUSTION SCIENCE AND TECHNOLOGY, 1995, 106 (1-3) :19-&

[7] Direct numerical simulations of localised forced ignition in turbulent mixing layers: The effects of mixture fraction and its gradient [J].

Chakraborty, Nilanjan ;

Mastorakos, E. .

FLOW TURBULENCE AND COMBUSTION, 2008, 80 (02) :155-186

[8] Effects of turbulence on spark ignition in inhomogeneous mixtures: A direct numerical simulation (DNS) study [J].

Chakraborty, Nilanjan ;

Mastorakos, E. ;

Cant, R. S. .

COMBUSTION SCIENCE AND TECHNOLOGY, 2007, 179 (1-2) :293-317

[9] Local fuel concentration measurements in internal combustion engines using spark-emission spectroscopy [J].

Fansler, TD ;

Stojkovic, B ;

Drake, MC ;

Rosalik, ME .

APPLIED PHYSICS B-LASERS AND OPTICS, 2002, 75 (4-5) :577-590

[10]

Lefebvre A. H., 1998, Gas Turbine Combustion

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