Results 121 to 130 of about 215 (163)

Counterflow diffusion flames of quasi-monodisperse electrostatic sprays

Symposium (International) on Combustion, 1992
The structure of counterflow diffusion flames of quasi-monodisperse electrostatic sprays of heptane has been studied by measuring droplet size, velocity and gas-phase temperature in two flames characterized by the same overall equivalence ratio. The first flame was found to behave much like a purely gaseous diffusion flame, since droplets evaporate ...
Gung Chen, Alessandro Gomez
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Kinetic modeling of counterflow diffusion flames of butadiene

Combustion and Flame, 2002
A comprehensive, semi-detailed kinetic scheme was used to simulate the chemical structures of counterflow diffusion and fuel-rich premixed 1,3-butadiene flames, to better understand the formation of polycyclic aromatic hydrocarbons (PAH). The results showed that model predictions were in good agreement with the experiments for most of the species in ...
Silvia Granata, Tiziano Faravelli, Eliseo Ranzi, Nesrin Olten, Selim Senkan   +4 more
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Studies of Counterflow Diffusion Flames at Low Pressures

Combustion Science and Technology, 1997
Methane-oxygen, methane-nitrous oxide and carbon monoxide-nitrous oxide counterflow diffusion flames have been studied at low pressures. Species concentrations have been measured using probe extraction and gas chromatography, and temperatures have been measured using thermo- couples.
J. J. Cor, M. C. Branch
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Thermoacoustic Instabilities in Counterflow Diffusion Flames

2019
Thermoacoustic instabilities arise in combustion systems from a coupling between the unsteady heat release of the flame and the underlying acoustic field. Although thermoacoustics have been studied extensively with regards to premixed flames, where the fuel and oxidizer are fully mixed before combustion, the study of thermoacoustics in diffusion flames
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Turbulent Counterflow Diffusion Flame Structure and Dilution Effects

Combustion Science and Technology, 1991
Abstract Laminar counterflow combustion configurations have been studied extensively in the investigation of fundamental combustion phenomena, such as fuel dilution, strain rate, and pressure dependence on flame extinction limits. However very few studies have been performed on turbulent counterflow diffusion flames.
P. J. GOIX, L. TALBOT
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Structure of counterflow diffusion flames burning multicomponent fuels

Symposium (International) on Combustion, 1985
The structure of a diffusion flame stabilized between counterflowing streams of a multicomponent fuel containing N components and an oxidizing gas stream is analyzed. It is presumed that each component of the fuel reacts only with the oxidizer, and does not influence the kinetics of pyrolysis or oxidation of the other components.
A. Hamins, K. Seshadri
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Soret effects in laminar counterflow spray diffusion flames

Combustion Theory and Modelling, 2002
The impact of vapour-phase Ludwig–Soret effects on the structure of steady laminar counterflow spray diffusion flames is investigated numerically using complex chemistry and multicomponent molecular transport laws of Chapman-Enskog kinetic theory. These Ludwig–Soret effects, which tend to drive light molecular species towards hot regions and heavy ...
R Ben Dakhlia, V Giovangigli, D E Rosner
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Combustion characteristics of Mg−CO2 counterflow diffusion flames

Symposium (International) on Combustion, 1996
To examine the details of the Mg−CO 2 combustion consisting of the gas-phase reactions and the surface reactions, we tried to separate the Mg−CO 2 flame from the surface reactions. For this purpose, we formed a stable Mg−CO 2 counterflow diffusion flame between the Mg vapor and a CO 2 stream by using a Mg vaporizer with many small ejection holes ...
Aporo Fukuchi, Masaru Kawashima, Saburo Yuasa   +2 more
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Sooting Counterflow Diffusion Flames with Varying Oxygen Index

Combustion Science and Technology, 1984
Abstract Varying oxygen concentrations was found to have pronounced effects on the sooting characteristics of diffusion flames. Ethylene and propane flames were stabilized around a porous ceramic cylindrical burner mounted in a vertically oriented, low turbulence wind tunnel.
U. Vandsburger, I. Kennedy, I. Glassman
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Extinction of counterflow diffusion flames under velocity oscillations

Symposium (International) on Combustion, 1996
The effects of sinusoidal velocity oscillation on counterflow diffusion flames of diluted methane against air were experimentally and computationally investigated. Experimentally, the unsteady flow characteristics as well as the local extinction strain rates were measured over extensive ranges in frequency and amplitude of the flow oscillation by using
J.S. Kistler, C.J. Sung, T.G. Kreut, C.K. Law, M. Nishioka   +4 more
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