Results 11 to 20 of about 293,941 (274)
Combustion and Flame, 2017 Simultaneous, planar measurements of flame temperature ( T ), soot volume fraction ( f v ), primary particle diameter ( d p ) and the derived number density of primary particles ( N p ) are reported in a well characterized, lifted ethylene jet diffusion ...
D. Gu +5 more
semanticscholar +3 more sources
Case Studies in Thermal Engineering, 2022 The temperature and soot volume fraction in afterburn flame are very important parameters in flame analysis and burner design. A novel method that combines the 3-D emission measurement technique and the camera position and attitude calibration by using ...
Minglu Dai +4 more
doaj +3 more sources
Soot volume fraction imaging [PDF]
Applied Optics, 1997 A technique is described for the determination of soot volume fractions by laser light extinction measurements. This technique differs from previously reported pointwise methods in that a two-dimensional array (i.e., image) of data is acquired simultaneously.
P S, Greenberg, J C, Ku
openaire +2 more sources
Energies, 2023 Oxygen concentration is a significant factor affecting soot formation and oxidation. However, there are few studies that have focused on the morphology and nanostructure characteristics of soot in aviation kerosene, oxygen-depleted combustion flames.
Jiaqi Guo +5 more
doaj +1 more source
Soot Volume Fraction Profiles in Forced-Combusting Boundary Layers [PDF]
Journal of Heat Transfer, 1983 A multiwavelength laser transmission technique is used to determine soot volume fraction fields and aproximate particle size distributions in a forced flow combusting boundary layer. Measurements are made in diffusion flames of polymethylmethacrylate (PMMA) and five liquid hydrocarbon fuels (n-heptane, iso-octane, cyclohexane, cyclohexene, and toluene)
Beier, R.A., Pagni, P.J.
openaire +2 more sources
Optics Express, 2021 Inferring local soot temperature and volume fraction distributions from radiation emission measurements of sooting flames may involve solving nonlinear, ill-posed and high-dimensional problems, which are typically conducted by solving ill-posed problems ...
T. Ren +5 more
semanticscholar +1 more source
Fire, 2023 This work proposed a novel model to simultaneously reconstruct temperature distribution and soot volume fraction field for two-dimensional thin-slice flames using the knowledge of monochromatic radiation intensities at two wavelengths using a CCD camera.
Mingfei Chen +3 more
doaj +1 more source
Santoro flame: The volume fraction of soot accounting for its morphology & composition
Combustion and Flame, 2022 The soot volume fraction, fv, measured by Santoro and coworkers in an ethylene diffusion flame by light extinction has become a standard for validation of models for soot formation and growth. This fv, however, has been obtained assuming soot spheres of constant refractive index.
Kelesidis, Georgios A. +1 more
openaire +1 more source
Frontiers in Mechanical Engineering, 2021 The main characteristics of pool fire flames are flame height, air entrainment, pulsation of the flame, formation and properties of soot particles, mass burning rate, radiation feedback to the pool surface, and the amount of pollutants including soot ...
Juan J. Cruz +8 more
doaj +1 more source
Optics Express, 2022 An original convolutional neural network, i.e. U-net approach, has been designed to retrieve simultaneously local soot temperature and volume fraction fields from line-of-sight measurements of soot radiation fields. A five-stage U-net architecture is established and detailed.
Yi Wu +5 more
openaire +3 more sources