Results 161 to 170 of about 2,274 (204)

Transient Measurements of Radiative Properties, Soot Volume Fraction and Soot Temperature in a Large Pool Fire∗

Combustion Science and Technology, 1998
Multi-wavelength absorption/emission measurements of extinction coefficient, temperature, and soot volume fraction in a large (6 m by 6 m) JP8 pool fire using an in situ water-cooled fiberoptic probe are reported. These measurements provide the first in situ information on radiative properties, temperature, soot, and the associated time scales in large
L. A. GRITZO, Y. R. SIVATHANU, W. GILL
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Spatially resolved measurements of soot volume fraction using laser-induced incandescence

Combustion and Flame, 1994
Laser-induced incandescence is used to obtain spatially resolved measurements of soot volume fraction in a laminar diffusion flame, in which comparisons with laser scattering/extinction data yield excellent agreement. In addition, the laser-induced incandescence signal is observed to involve a rapid rise in intensity followed by a relatively long (ca ...
B. Quay, T.-W. Lee, T. Ni, R.J. Santoro
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Temperature and soot volume fraction statistics in toluene-fired pool fires

Combustion and Flame, 1993
Abstract The probability density functions and the temporal characteristics of local instantaneous emission and absorption properties in strongly radiating toluene pool flames are presented. Measurements show a large dynamic range in the data resulting from the distribution of soot particles in narrow regions within the fire and from the nonlinear ...
M. Klassen, J.P. Gore
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Transient Flow Field Effects on Soot Volume Fraction in Diffusion Flames

Combustion Science and Technology, 2000
Quantitative measurements of soot concentration made in an oscillating propane-air counterflow diffusion flame are presented. The non-intrusive laser induced incandescence (LII) technique was used to make spatially and temporally resolved measurements of soot volume fraction in these transient flames as a function of initial steady strain rate, forcing
Michele E Decroix, William L Roberts
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Simultaneous Determination of Distributions of Temperature and Soot Volume Fraction in Sooting Flames Using Decoupled Reconstruction Method

Numerical Heat Transfer, Part A: Applications, 2009
This article presents a simulation investigation for simultaneous determination of distributions of temperature and soot volume fraction in a nonoptically thin sooting flame using a decoupled reconstruction method. Flame temperature and emissivity images can be calculated from two monochromatic radiative intensity images in the visible spectrum range ...
Chun Lou, Huai-Chun Zhou
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Simulation on simultaneous estimation of non-uniform temperature and soot volume fraction distributions in axisymmetric sooting flames

Journal of Quantitative Spectroscopy and Radiative Transfer, 2005
For visualizing non-uniform absorbing, emitting, non-scattering, axisymmetric sooting flames, because conventional two-color emission methods are no longer suitable, a three-color emission method for the simultaneous estimation of temperature and soot volume fraction distributions in these flames is studied in this paper.
Yu-hua Ai, Huai-chun Zhou
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A new correlation between soot sheet width and soot volume fraction in turbulent non-premixed jet flames

Proceedings of the Combustion Institute, 2019
Abstract Measurements of soot volume fraction (SVF) using planar Laser-Induced Incandescence (LII) were performed in a set of attached turbulent non-premixed jet flames, burning the same mixture of C2H4/H2/N2. A novel post processing technique was used to identify and characterize the average width (Ws) and volume fraction of the soot sheets and ...
S.M. Mahmoud, T.C. Lau, G.J. Nathan, P.R. Medwell, Z.T. Alwahabi, B.B. Dally   +5 more
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Absorption correction of two-color laser-induced incandescence signals for soot volume fraction measurements

Applied Optics, 2006
A numerical iterative procedure is presented for the evaluation of the effect of signal absorption in two-color laser-induced incandescence measurements. The correction process is applied to our experimental data in an axisymmetric flame [Appl. Opt. 44, 7414 (2005)].
Migliorini F, De Iuliis S, Cignoli F, Zizak G   +3 more
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Comparisons of the soot volume fraction using gravimetric and light extinction techniques

Combustion and Flame, 1995
Abstract Simultaneous optical and gravimetric measurements were performed in the postflame region of an acetylene/ air premixed flame where the temperature of the soot/gas mixture was reduced to 500 K through nitrogen dilution. By combining gravimetric measurements of the collected soot with soot density measurements using helium pyenometry, an ...
M.Y. Choi, G.W. Mulholland, A. Hamins, T. Kashiwagi   +3 more
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Simultaneous optical measurement of soot volume fraction and temperature in premixed flames

Combustion and Flame, 1994
The performance of a three-wavelength optical probe technique for measuring soot volume fraction and temperature was assessed by conducting experiments in the homogeneous environment of a premixed flame. Using a premixed ethylene/air flame, the temperatures and soot volume fractions (fva, based on absorption measurements at 633 nm and fve, based on ...
M.Y. Choi, A. Hamins, G.W. Mulholland, T. Kashiwagi   +3 more
openaire   +1 more source