The Extinction of Counterflow Premixed Flames Burning Diluted Methane-Air, and Diluted Propane-Air Mixtures
- 1 May 1987
- journal article
- research article
- Published by Taylor & Francis in Combustion Science and Technology
- Vol. 53 (1) , 55-65
- https://doi.org/10.1080/00102208708947019
Abstract
–A theoretical and experimental investigation of the mechanisms of extinction of counterflow premixed flames burning methane and propane is outlined. Premixed flames were stabilized between counterflowing streams of a fuel-lean, premixed mixture of fuel, air, and nitrogen and that of pure nitrogen. The composition of the combustible mixture at extinction as a function of the strain rate were measured over a wide parametric range. The experimental results were interpreted by use of asymptotic theories developed previously. Overall chemical kinetic rate parameters characterizing the gas phase oxidation of methane and propane were deduced. The limiting fuel concentration below which a premixed flame cannot be stabilized was measured. The limiting fuel concentration was found to agree well with previous measurements of flammability limits for these fuels.Keywords
This publication has 28 references indexed in Scilit:
- Structure and extinction of a counterflow partially premixed, diffusion flameChemical Engineering Science, 1985
- Short CommunicationCombustion Science and Technology, 1984
- Strained Premixed Laminar Flames with Nonunity Lewis NumbersCombustion Science and Technology, 1983
- Strained Premixed Laminar Flames Under Nonadiabatic ConditionsCombustion Science and Technology, 1983
- The premixed flame in a counterflowCombustion and Flame, 1982
- Structure of laminar flamelets in premixed turbulent flamesCombustion and Flame, 1982
- Near-limit downward propagation of hydrogen and methane flames in oxygennitrogen mixturesCombustion and Flame, 1978
- The asymptotic structure of counterflow diffusion flames for large activation energiesActa Astronautica, 1974
- A noncatalytic coating for platinum-rhodium thermocouplesCombustion and Flame, 1970
- Flame propagation: the measurement of burning velocities of slow flames and the determination of limits of combustionProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1952