Results 251 to 260 of about 23,143 (295)

Laminar Wake Flame Heights

Journal of Heat Transfer, 1980
One important measure of material fire hazard is the flame height a given polymer produces upon burning in a specified ambience. Six systems are considered here—two fuel geometries: wall-mounted and free standing; and three flow fields: forced, free and mixed-mode.
C. M. Kinoshita, P. J. Pagni
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Visible Flame Heights of Laminar Coflow Diffusion Flames

Combustion Science and Technology, 1999
Results of experiments are reported for overventilated buoyancy-controlled flames of various fuel mixtures in normal atmospheric air. The fuels studied were C2H6, C2H4, C2H2 and CH4, as well as fixed hydrogen-hydrocarbon mixtures of the first three, to give C2H6+H2, C2H4+H2, C2H2+H2 and C2H2+2H2.
A.S. GORDON, S.C. LI, FA WILLIAMS
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Flame height correlation and upward flame spread modelling

Fire and Materials, 2002
AbstractPrevious work has demonstrated that flame height is one of the two most important parameters determining the rate of vertical flame spread on a wall. Flame spread models rely on empirical flame height correlations of the form Xf=KQ̇′n, but there have been no carefully controlled experiments designed to establish the validity of such ...
Kuang‐ Chung Tsai, Dougal Drysdale
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Effects of pool size and spacing on burning rate and flame height of two square heptane pool fires [PDF]

Journal of Hazardous Materials, 2019
The interaction of multiple pool fires might lead to higher burning rate and flame height than single pool fire, raising the possibility of fire ignition and flame spread and increasing the risks to people, buildings and environment.
Huaxian Wan, Zihe Gao, Jie Ji
exaly   +2 more sources

The prediction of flame heights and flame shapes of small fire whirls

Proceedings of the Combustion Institute, 2007
Abstract This paper adds vortex flows around Burke–Schumann diffusion flames to predict the flame heights and the flame shapes of small fire whirls. The resulting model matches the measurements of methanol flames in a previous laboratory experiment and the results of numerical calculations in this paper.
Keng Hoo Chuah, Genichiro Kushida
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A Physical Model for Flame Height Intermittency

Fire Technology, 2017
In this paper, a simple physical model for flame height intermittency in buoyant diffusion flames is proposed. We use dimensional analysis to link existing relations for the pulsation period of diffusion flames and the burnout time of discrete volumes of gaseous fuel. From this analysis, relationships for flame height and intermittency as a function of
Trevor B. Maynard, Jonathan W. Butta
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Multicomponent pool fires: Trends in burning rate, flame height, and flame temperature

Fuel, 2021
Abstract The composition of a multicomponent pool fire will vary over the course of burning due to preferential distillation of more volatile compounds. As a result, key fire properties like the burning rate, flame temperature, flame height, and soot emissions will change as the properties of the fuel change.
Aaron Yip, Jan B. Haelssig, Michael J. Pegg   +2 more
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Wall flame heights with external radiation

Fire Technology, 1991
An existing flame heat transfer fire testing apparatus was used to study the upward flame spread potential of two kinds of wall materials: (1) PMMA (Polymethylmethacrylate) and (2) Douglas Fir Particle Board. PMMA is noncharring whereas Douglas Fir Particle Board is a charring material.
King-Mon Tu, James G. Quintiere
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Calculation of the effective height of a diffusion flame

Combustion, Explosion and Shock Waves, 1994
Experimental studies of coaxial burner flames make it possible to decide upon a Burke — Schumann model for “short” flames. Qualitative and scale conformity of diffusion flame shape is obtained for this solution. A satisfactory approximation of a flame by a plane model is given which considers changes in diffusion conditions in the gas phase and the ...
S. M. Reshetnikov, V. M. Frolov
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Turbulent jet diffusion flames: consolidation of flame height data

Combustion and Flame, 1999
Literature data on flame heights of turbulent jet diffusion flames are examined in ratios to flame heights of purely buoyant turbulent diffusion flames. The flame height ratio is found to be a function of the gas release momentum in ratio to the momentum generated by a purely buoyant flame.
openaire   +1 more source