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Electrophoretic Aerosol focusing for Soot Particle Analysis
2015In this work, a focused deposition technique was developed and applied to soot particles produced in a laminar premixed flame of ethylene and air. Particles were collected by means of an Electrostatic Precipitator (ESP), coupled with a Corona charger device used for unipolar charging of particles.
G Trunfio +4 more
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Chemical Kinetics of Soot Particle Growth
Annual Review of Physical Chemistry, 1985The light given off by a candle flame and the black smoke from wood burning fireplaces, diesel engines, and industrial furnaces have a common origin: tiny carbonaceous soot particles. The light of a candle comes from incandescent soot particles that ultimately burn up in the air at the top of the flame.
S J Harris, A M Weiner
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A mechanism for the formation of soot particles and soot deposits
Combustion and Flame, 1992The extent of the role of polycyclic aromatic hydrocarbon (PAH) species in the mechanism of soot formation has not definitely been determined. In previous work using a flat-flame, water-cooled, premixed burner burning ethylene-air flames we investigated the formation and destruction of PAH species up to five aromatic ring structures.
J.M. Smedley, A. Williams, K.D. Bartle
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Combustion and Flame, 1991
Although there have been many studies of soot formation, the processes involved are still not fully understood. Recently, particular attention has been directed at the rate of growth of soot particles when rich premixed hydrocarbon-oxygen mixtures are burned in a flat flame, but an alternative approach is to compare the reported growth rates for soot ...
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Although there have been many studies of soot formation, the processes involved are still not fully understood. Recently, particular attention has been directed at the rate of growth of soot particles when rich premixed hydrocarbon-oxygen mixtures are burned in a flat flame, but an alternative approach is to compare the reported growth rates for soot ...
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A picture of soot particle inception
Symposium (International) on Combustion, 1989We have shown in earlier work that the ultimate soot loading in a sooting premixed flame is determined largely by processes that occur before the growth region, even though 90% of the soot mass is contributed by C2H2 surface growth. In this work we make the first measurements of how early soot formation kinetics vary with equivalence ratio.
Stephen J. Harris, Anita M. Weiner
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Extinction efficiencies of elongated soot particles
Journal of Quantitative Spectroscopy and Radiative Transfer, 1989Abstract Knowledge of the radiative properties of soot particles is needed in many areas of research and practical applications. Soot particles play a significant role in radiative heat-transfer modeling, efficiency of mobile and stationary combustion systems and air pollution studies.
T.T. Charalampopoulos, D.W. Hahn
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Soot particle measurements in diffusion flames
Combustion and Flame, 1983Abstract The formation and growth of soot particles in a coannular diffusion flame have been studied using a laser extinction/scattering technique for particle size measurement. Measurements have been obtained with ethene as the fuel for various fuel flow rates. The results reveal that the flame can be broadly divided into two regions.
R.J. Santoro +2 more
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Equilibrium nanostructure of primary soot particles
Proceedings of the Combustion Institute, 2000This paper addresses the origin of the characteristic shell/core nanostructure of primary soot particles, in which a zone of concentrically oriented graphene layers surrounds a disordered core. In situ microscopy is used to examine the liquid crystalline optical textures on the external surfaces of droplets and pools of molten mesophase pitch, taken as
Robert H. Hurt +2 more
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Pre-Particle Chemistry in Soot Formation
1981Species and reactions involved in the early stages of soot formation prior to the formation of particles have been studied in flat low pressure flames of benzene using a molecular beam mass spectrometer system. In a near-sooting (equivalence ratio φ = 1.8) benzene-oxygen-argon flame, the profiles of molar flux versus distance from the burner for ...
J. D. Bittner, J. B. Howard
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Carbonization Rate of Soot Precursor Particles
Combustion Science and Technology, 1996Abstract The presence of soot precursor particles in hydrocarbon diffusion flames is made clearly evident by means of contemporary sampling techniques in combination with transmission electron microscopy (TEM). These particles are the immediate predecessors of mature, partially dehydrogenated carbonaceous soot aggregates, and recent analytical tests ...
R. A. Dobbins +4 more
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