Results 171 to 180 of about 1,079,064 (218)

Soot particle size and soot yield in shock tube studies

Combustion and Flame, 1983
Abstract 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, S. Taki, C.K.Li Kwok Cheong, R.A. Matula   +3 more
openaire   +1 more source

Measurement of Naphthalene Uptake by Combustion Soot Particles

Environmental Science & Technology, 2013
In this study, we designed and constructed an experimental laboratory apparatus to measure the uptake of volatile organic compounds (VOCs) by soot particles. Results for the uptake of naphthalene (C10H8) by soot particles typical of those found in the exhaust of an aircraft engine are reported in this paper.
David S, Liscinsky, Zhenhong, Yu, Bruce, True, Jay, Peck, Archer C, Jennings, Hsi-Wu, Wong, Jon, Franklin, Scott C, Herndon, Richard C, Miake-Lye   +8 more
openaire   +2 more sources

Water interaction with hydrophobic and hydrophilic soot particles

Physical Chemistry Chemical Physics, 2008
The interaction of water with laboratory soots possessing a range of properties relevant for atmospheric studies is examined by two complementary methods: gravimetrical measurement of water uptake coupled with chemical composition and porosity analysis and HTDMA (humidified tandem differential mobility analyzer) inference of water uptake accompanied by
Popovicheva, Olga B., Persiantseva, Natalia M., Shonija, Natalia K., Demott, Paul J., Koehler, Kirsten, Petters, Markus, Kreidenweis, Sonia, Tishkova, Victoria, Demirdjian, Benjamin, Suzanne, Jean   +9 more
openaire   +3 more sources

Soot-velocity measurements by particle vaporization velocimetry

Optics Letters, 1999
We 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
openaire   +2 more sources

Growth rate of soot particles

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 ...
openaire   +1 more source

Soot Particle Nucleation and Agglomeration

1983
In 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, Jacques Lahaye, Brian S. Haynes   +2 more
openaire   +1 more source

Dielectrophoretic Deposition of Graphite Oxide Soot Particles

Journal of Nanoscience and Nanotechnology, 2008
Alternating 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., Jung, S., Kang, S., Kim, Y., Chen, X., Stankovich, S., Ruoff, S.R., Baik, S.   +7 more
openaire   +3 more sources

Effect of Engine Load on Diesel Soot Particles

Environmental Science & Technology, 2004
This study concentrates on characterization of nonvolatile fraction of diesel particles. These particles have an impact on earth's radiation balance as well as on health effects of vehicle emissions. In addition to composition and size distribution of particles, an important factor affecting their health effects and properties and lifetimes in the ...
Virtanen, Annele K.K., Ristimäki, Jyrki M., Vaaraslahti, Kati M., Keskinen, Jorma   +3 more
openaire   +3 more sources

Charged Particles in Sooting Flames II. Determination of the Fraction of Charged Soot

Berichte der Bunsengesellschaft für physikalische Chemie, 1983
AbstractA new technique has been developed allowing the determination of the relative amounts of charged and neutral soot in fuel‐rich premixed low‐pressure flames. Results on C2H2 and C6H6 flames are reported and used, together with charged particle number densities, to calculate soot mass fractions and particle sizes.
K. H. Homann, H. Wolf
openaire   +1 more source

Scattering and radiative properties of complex soot and soot-containing aggregate particles

Journal of Quantitative Spectroscopy and Radiative Transfer, 2007
Abstract We use the superposition T-matrix method to compute the scattering matrix elements and optical cross-sections for a variety of complex soot and soot-containing aggregate particles in random orientation at a visible wavelength 0.628 μm. It is shown that random variations in the geometrical configuration of monomers in a soot cluster for fixed
Li Liu, Michael I. Mishchenko
openaire   +1 more source