Numerical simulation of spark ignition including ionization

Thiele, M.; Selle, S.J.; Riedel, Uwe; Warnatz, Jürgen; Maas, Ulrich

doi:10.1016/s0082-0784(00)80328-8

Cited by 76 publications

(40 citation statements)

References 18 publications

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“…The application of these techniques can be used to significantly lower the ignition temperature [8]. Spark ignition has also received a lot of attention in research articles [9][10][11][12][13] and recently a new method has been investigated by Peerlings [14] to quantify a flame's thermo-acoustic behavior by electric current measurements. The electric currents can also be used to determine the flame's equivalence ratio [15].…”

Section: Introductionmentioning

confidence: 99%

Development of a numerical model for the electric current in burner-stabilised methane–air flames

Speelman

Goey

Oijen

2015

Combustion Theory and Modelling

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Section: Introductionmentioning

confidence: 99%

Development of a numerical model for the electric current in burner-stabilised methane–air flames

Speelman

Goey

Oijen

2015

Combustion Theory and Modelling

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“…These charged species have been studied extensively during the past few decades for several reasons. They can be used in conjunction with (strong) external electric fields to enhance flame stability [4,5], or ignite combustible mixtures with a spark plug [6][7][8][9][10]. Starikovskaia [11] presents a comprehensive review on plasma assisted ignition and combustion, which can be used to lower the ignition temperature significantly [12].…”

Section: Introductionmentioning

confidence: 99%

Validation of a novel numerical model for the electric currents in burner-stabilized methane–air flames

Speelman¹,

Kiefer²,

Markus³

et al. 2015

Proceedings of the Combustion Institute

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“…Using total current I, the source term can be distributed over the plasma channel (Thiele et al, 2000) by:…”

Section: 3b1 Electrical Energy Source (Model 2)mentioning

confidence: 99%

Railplug Ignition System for Enhanced Engine Performance and Reduced Maintenance

Ezekoye¹,

Hall²,

Matthews³

2005

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This Final Technical Report discusses the progress that was made on the experimental and numerical tasks over the duration of this project. The primary objectives of the project were to 1) develop an improved understanding of the spark ignition process, and 2) develop the railplug as an improved ignitor for large bore stationary natural gas engines.We performed fundamental experiments on the physical processes occurring during spark ignition and used the results from these experiments to aid our development of the most complete model of the spark ignition process ever devised. The elements in this model include 1) the dynamic response of the ignition circuit, 2) a chemical kinetics mechanism that is suitable for the reactions that occur in the plasma, 3) conventional flame propagation kinetics, and 4) a multi-dimensional formulation so that bulk flow through the spark gap can be incorporated. This model (i.e., a Fortran code that can be used as a subroutine within an engine modeling code such as KIVA) can be obtained from Prof. Ron Matthews at rdmatt@mail.utexas.edu or Prof. DK Ezekoye at dezekoye@mail.utexas.edu.Fundamental experiments, engine experiments, and modeling tasks were used to help develop the railplug as a new ignitor for large bore natural gas engines. As the result of these studies, we developed a railplug that could extend the Lean Stability Limit (LSL) of an engine operating at full load on natural gas from φ = 0.59 for operation on spark plugs down to φ = 0.53 using railplugs with the same delivered energy (0.7 J). However, this delivered energy would rapidly wear out the spark plug. For a conventional delivered energy (<0.05 J), the LSL is φ = 0.63 for a spark plug. Further, using a permanent magnet to aid the plasma movement, the LSL was extended to φ = 0.54 for a railplug with a delivered energy of only 0.15 J/shot, a typical discharge energy for commercial capacitive discharge ignition systems. Here, it should be noted that railplugs and the associated ignition circuit should not cost much more than a conventional spark ignition system. Additionally, it is believed that the railplug performance can be further improved via continued research and development.iii TABLE OF CONTENTS Abstract iii EXECUTIVE SUMMARYThis Final Technical Report discusses the progress that was made on the experimental and numerical tasks over the duration of this project. The primary objectives of the project were to 1) develop an improved understanding of the spark ignition process, and 2) develop the railplug as an improved ignitor for large bore stationary natural gas engines.Due to these two objectives, the experimental subtasks involved 1) detailed measurements regarding the physical processes occurring during spark ignition, and 2) measurements of the factors that affect railplug performance. Similarly, the modeling subtasks involved developing an improved model for the conventional spark ignition process and developing a model for railplug performance and ignition.The four phases of spark ignition are ...

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Numerical simulation of spark ignition including ionization

Cited by 76 publications

References 18 publications

Development of a numerical model for the electric current in burner-stabilised methane–air flames

Development of a numerical model for the electric current in burner-stabilised methane–air flames

Validation of a novel numerical model for the electric currents in burner-stabilized methane–air flames

Railplug Ignition System for Enhanced Engine Performance and Reduced Maintenance

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