Investigation of the ignition of a gas by an electric spark

Lintin, D. R.; Wooding, E. R.

doi:10.1088/0508-3443/10/4/302

Cited by 33 publications

(8 citation statements)

References 8 publications

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“…In Figure 8, flame velocity decreases to very low values, typical o f a nonpropagation situation. The minimum of the flame speed has been observed experimentally i n the combustion of hydrocarbons and the time to reach that minimum (=100psec) is also consistent with experiment values (Lintin, 1959).…”

Section: Halogen-generated Flame Extinctionsupporting

confidence: 87%

Numerical Simulation of Unsteady Laminar Flame Propagation via the Method of lines: Further Mathematical Refinements and Results Obtained on Halogen Inhibition

Galant¹

1983

Combustion Science and Technology

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Section: Halogen-generated Flame Extinctionsupporting

confidence: 87%

Numerical Simulation of Unsteady Laminar Flame Propagation via the Method of lines: Further Mathematical Refinements and Results Obtained on Halogen Inhibition

Galant¹

1983

Combustion Science and Technology

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“…Additionally, heat transfer to even thin electrodes is observed to be important [5,6,13,14]. Combustion reactions occur quite early after electrical breakdown of the gap and the initial flame kernel growth is shown to be very rapid [11,12,[15][16][17][18][19]. One clearly desires to account for all of these processes in attempting to understand ignition, but is confronted with 0010-2180/87/$03.50 computational constraints if multidimensional modeling is pursued [20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Prediction of spark kernel development in constant volume combustion

Lim¹,

Anderson

Arpacı

1987

Combustion and Flame

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Combustion initiation is studied in atmospheric pressure propane-air mixtures in a constant volume bomb with a high speed (10,000 fps) laser schlieren system. The spark current and voltage waveforms are simultaneously recorded for later model input. A phenomenological model for early flame kernel development is presented which accounts for the initial, breakdown generated, spark kernel and its subsequent growth. The kernel growth is initially controlled by the breakdown process and the subsequent electrical power input. A new, spark power induced, mass entrainment term is shown to model this initially rapid volume increase adequately while later growth is mainly dominated by diffusion. Results and model comparisons are presented for the effects of power input, spark energy, and equivalence ratio.

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“…The flame kernel, measured to be spherical [8,26], is numerically shown to provide the best predictions of experimentally observed phenomena in spark ignition [27,28]. Observation of a developing spark kernel also reveals the existence of a critical radius r e that the flame kernel must reach for successful development [9,[29][30][31][32][33]. Recent theoretical studies on spherical flame initiation [33][34][35] explicitly show the existence of this critical radius and explain its role in flame kernel development.…”

mentioning

confidence: 99%

Spark ignition of propane-air mixtures near the minimum ignition energy: Part I. An experimental study

Anderson

Arpacı

1991

Combustion and Flame

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Kernel growth from a spark in propane-air mixtures at atmospheric pressure is studied in a constant volume bomb with a high-speed laser schlieren system. The spark current and voltage waveforms of an inductive ignition source are simultaneously recorded with the photographic recordings. The temporal growth of the measured equivalent radii at conditions near the minimum ignition energy shows the existence of a critical radius and the influence of the critical radius on kernel development. In addition, it is shown that the net spark power for ignition can be estimated using data from minimum ignition energy, electrode fall energy losses, and spark calorimetry experiments. These results are used in Part II to develop a model for kernel growth.

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Investigation of the ignition of a gas by an electric spark

Cited by 33 publications

References 8 publications

Numerical Simulation of Unsteady Laminar Flame Propagation via the Method of lines: Further Mathematical Refinements and Results Obtained on Halogen Inhibition

Numerical Simulation of Unsteady Laminar Flame Propagation via the Method of lines: Further Mathematical Refinements and Results Obtained on Halogen Inhibition

Prediction of spark kernel development in constant volume combustion

Spark ignition of propane-air mixtures near the minimum ignition energy: Part I. An experimental study

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