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Laminar Head-On Flame Quenching-A Theoretical Study
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Abstract
Results from a numerical investigation of one-dimensional, laminar flame quenching with constant and time-dependent pressure variations are reported herein. A description of flame quenching and post-flame oxidation processes for the global reaction A + B → C is obtained from a solution of a simplified form of the non-linear conservation of mass, momentum and energy equations in a planar flow field. These equations were reduced to finite difference form and the time-dependent pressure was input via either an integrated form of the energy equation or a third-order polynomial law. Numerical calculations were performed at constant pressure, combustion bombtype conditions and under rapid decompression during quenching. One-dimensional head-on quenching distances, hydrocarbon concentration levels and gas properties were obtained for a variety of stoichiometric values in a propane/airtype mixture. Results presented indicate that the quenching distance is primarily controlled by the thermal conduction process; however, residual hydrocarbon levels are intimately related to post-quenching diffusion, oxidation kinetics and the during which they occur.
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Citation
Adamczyk, A. and Lavoie, G., "Laminar Head-On Flame Quenching-A Theoretical Study," SAE Technical Paper 780969, 1978, https://doi.org/10.4271/780969.Also In
References
- Daniel W. A. “Flame Quenching at the Walls of an Internal Combustion Engine.” 6th Symposium (International) on Combustion 1956 856
- Daniel W. A. “Engine Variable Effects on Exhaust Hydrocarbon Composition (A singlecylinder engine study with propane as the fuel).” SAE paper 670124 Automotive Congress Detroit January 1967
- Friedman R. Johnston W. C. “The Wall-Quenching of Laminar Propane Flames as a Function of Pressure, Temperature and Air-Fuel Ratio,” J. Applied Phys. 21 791 1950
- Gottenberg W. G. Olson D. R. Best H. W. “Flame Quenching During High Pressure, High Turbulence Combustion.” Combustion and Flame 7 9 1963
- Agnew J. T. “Unburned Hydrocarbons in Closed Vessel Explosions, Theory vs. Experiment; Applications to Spark Ignition Engine Exhaust.” SAE paper 670125 Automotive Congress Detroit January 1967
- Goolsby A. D. Haskell W. W. “FlameQuench Distance Measurements in a CFR Engine.” Combustion and Flame 26 105 1976
- Lavoie G. A. Blum P. N. “A Fundamental Model for Predicting Emissions and Fuel Consumption for the Conventional Spark-Ignition Engine.” Fall Technical Meeting, Eastern States Section The Combustion Institute Hartford, Connecticut November 10-11 1977
- Karman T. von Millan G. “Thermal Theory of a Laminar Flame Front near a Cold Wall,” Fourth Symposium (International) on Combustion The Combustion Institute 173 177 1953
- Fendell F. “Wall Quench and Flammability Limit Effects on Exhaust Hydrocarbon Emissions,” Final Report, Phase 2 1977
- Kurkov A. P. Mirsky W. “An Analysis of the Mechanism of Flame Extinction by a Cold Wall.” 12th Symposium (International) on Combustion 1968 615
- Lavoie G. A. “Correlations of Combustion Data for S. I. Engine Calculations: Laminar Flame Speed, Quench Distance and Global Reaction Rates,” SAE paper 780229 Automotive Congress February 27 March 3 1978
- Richtmyer R. D. Morton K. W. Difference Methods for Initial Value Problems Interscience, New York New York 1967
- Wentworth J. T. “Effect of Combustion Chamber Surface Temperature on Exhaust Hydrocarbon Concentration,” SAE paper 710587 1971
- Dugger G. L. Simon D. M. “Prediction of Flame Velocities of Hydrocarbon Flames,” Fourth Symposium (International) on Combustion Williams and Wilkins, Baltimore 336 345 1953
- Semenov N. N. “Thermal Theory of Combustion and Explosion. III. Theory of Normal Flame Propagation,” N.A.S.A. TM 1026 September 1942
- Ryan T. W. III Lestz S. S. “Methodology for Determining Combustion Characteristics of I. C. Engine Fuels,” Center for Air Environment Studies Report 473-77 Pennsylvania State University August 1977
- Cohen R. S. Dryer F. L. Glassman I. “The Combustion of Ethane in an Adiabatic Flow Reactor,” the Fall 1976 Meeting of the Eastern States Section of the Combustion Institute