Results 151 to 160 of about 6,408 (206)
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1983
Soot in flames is often a necessary component as it makes possible an efficient heat transfer by radiation. Naturally, it must be subsequently destroyed to avoid pollution. The present paper is focussed on soot oxidation by gaseous reagents.
Jean-Baptiste Donnet, Jacques Lahaye
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Soot in flames is often a necessary component as it makes possible an efficient heat transfer by radiation. Naturally, it must be subsequently destroyed to avoid pollution. The present paper is focussed on soot oxidation by gaseous reagents.
Jean-Baptiste Donnet, Jacques Lahaye
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Dielectrophoretic Deposition of Graphite Oxide Soot Particles
Journal of Nanoscience and Nanotechnology, 2008Alternating current dielectrophoresis in water was used to position graphite oxide soot (GO-soot) particles generated by rapid thermal expansion of graphite oxide under inert gas. The dielectrophoretic deposition was carried out at a frequency of 10 MHz and a peak-to-peak voltage of 10 V, and the deposited particles were analyzed using scanning ...
Hong, S. +7 more
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Faraday Symposia of the Chemical Society, 1973
Probable mechanisms are discussed of the formation processes of pyrolytic carbon films and soot particles, based on experimental investigations of their formation rates. Both are two-stage processes including nucleation and growth of nuclei. The formation of pyrolytic carbon from methane at temperatures below 1300 K is a molecular process.
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Probable mechanisms are discussed of the formation processes of pyrolytic carbon films and soot particles, based on experimental investigations of their formation rates. Both are two-stage processes including nucleation and growth of nuclei. The formation of pyrolytic carbon from methane at temperatures below 1300 K is a molecular process.
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Soot-velocity measurements by particle vaporization velocimetry
Optics Letters, 1999We demonstrate a new imaging technique for velocity measurements in particle-laden flows. The technique, particle vaporization velocimetry, is a form of flow tagging based on laser vaporization of absorbing particles at defined locations in the flow.
J M, Seitzman, R T, Wainner, P, Yang
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Laser microprobe analysis of soot precursor particles and carbonaceous soot
Combustion and Flame, 1995Samples of soot precursor particles and carbonaceous soot from a nonsmoking ethene diffusion flame have been analyzed by means of laser microprobe mass spectrometry (LMMS). The mass spectra of soot precursor particles from the lower flame display many peaks in the 200–300-amu range that are characteristic of polycyclic aromatic hydrocarbons (PAHs). The
R.A. Dobbins, R.A. Fletcher, W. Lu
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Soot particle size and soot yield in shock tube studies
Combustion and Flame, 1983Abstract The size of soot particles formed during the shock tube pyrolysis of toluene was measured by laser Doppler velocimetry. The particle size appeared to be of the order of a micron, i.e. about an order of magnitude higher than previously reported in the literature.
M. Frenklach +3 more
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Soot Precursor Particles in Flames
1994Thermophoretic sampling was conducted in buoyancy dominated diffusion flames fueled by ethene, methane and acetylene and in the laminar ethene flame. Small polydisperse singlet particles which are more transparent to the electron beam are found at intermediate temperatures on the fuel side of the flame front in these flames.
Richard A. Dobbins +1 more
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Effect of Oxidation Catalysts on Diesel Soot Particles
Environmental Science & Technology, 2006The effect of a conventional oxidation catalyst and a novel particle oxidation catalyst (POC) on diesel particles is studied using identical methodology. Regulated particulate matter emission measurement is followed by analyzing soluble organic fraction.
Vaaraslahti, Kati +6 more
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Aromatic site description of soot particles
Combustion and Flame, 2008Abstract A new, advanced soot particle model is developed that describes soot particles by their aromatic structure, including functional site descriptions and a detailed surface chemistry mechanism. A methodology is presented for the description of polyaromatic hydrocarbon (PAH) structures by their functional sites.
Matthew Celnik +4 more
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Soot Particle Nucleation and Agglomeration
1983In considering the overall phenomenon of soot formation, we are dealing with the evolution of a carbonaceous aerosol in hot reactive gases. If we assume that this aerosol is well described as a monodispersion of spherical particles, its characterization can be made with a knowledge of the particle number density N, the diameter of the particles d, and ...
Gilles Prado +2 more
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