Results 271 to 280 of about 20,251 (305)

Flame spread on aviation fuels

Fire Safety Journal, 1997
Abstract Flame spread rates and flame spread induction times have been measured for JP-5, JP-8 and mixtures of these fuels over the temperature range 10–90°C. The flame spread data were correlated on the basis of the initial liquid temperature relative to the closed cup flashpoint.
D. White, C.L. Beyler, C. Fulper, J. Leonard   +3 more
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Postulations of flame spread mechanisms

Combustion and Flame, 1974
Abstract An experimental study was conducted to explore the flame spread mechanism over thin solid fuel sheets. Flame spread rates over paper at various inclined angles were measured, and Schlieren photography was used to qualitatively assess heat transfer to the unburnt material in front of the pyrolysis zone.
Toshisuke Hirano, Stanley E. Noreikis, Thomas E. Waterman   +2 more
openaire   +1 more source

Surface Flame Spread

2016
Surface flame spread is a process of a moving flame in the vicinity of a pyrolyzing region on the surface of a solid or liquid that acts as a fuel source. It is distinct from flame propagation in a premixed fuel and oxygen system in that the surface spread of flame occurs as a result of the heating of the surface due to the direct or remote heating by ...
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A simplified method for determining flame spread

Fire Technology, 1967
The author discusses a small-scale fire test, which he proposes be used to determine flame-spread ratings for plastics during the development stages. Data on certain cellulosic materials indicate good correlation with the 25-ft tunnel test.
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Instability of Flame Spread in Microgravity

Heat Transfer: Volume 4, 1999
Abstract Results from the first part of an experimental study of flame spread instability are presented. The instabilities were investigated in the NASA drop facilities because the particular instabilities being examined were most pronounced in microgravity, when the influences of buoyancy were minimized.
Lisa M. Oravecz, Indrek S. Wichman, Sandra L. Olson   +2 more
openaire   +1 more source

Flame spread on inclined surfaces

Fire Safety Journal, 1992
Abstract Experiments have been carried out to investigate the effect of slope on the rate of upward spread of flame over a combustible solid. There is a clear difference between the mechanisms of spread for thin and thick fuels. With the latter, a change in mechanisms is found to occur at an inclination of 15–20°.
D.D. Drysdale, A.J.R. Macmillan
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Flame Spreading From Baffles

Journal of Jet Propulsion, 1956
Flame spreading from 0.5 to 2.25-inch V-gutter baffles in two-dimensional turbulent ducted flow was studied experimentally. Measurements of combust ion efficiency were made at distances of 10 to 43 inches downstream of the flame stabilizing baffle(s) in a 9 X 5-inch duct .
RICHARD J. PETREIN, JOHN P. LONGWELL, MALCOLM A. WEISS   +2 more
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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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The role of flame flux in opposed‐flow flame spread

Fire and Materials, 1995
AbstractThe flame spread process is driven by the net heat flux to the specimen surface, including the flux from the flame itself. This flame flux is important since it comprises a major part of the driving force causing flame fluxes were obtained. The values which are reported do not appear consistent and show more deviation among materials than would
Vytenis Babrauskas, Ingrid Wetterlund
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Precursor flame characteristics of flame spread over aviation fuel

Applied Thermal Engineering, 2017
Abstract Research on flame spreading over liquids is indispensable to make a fire risk assessment of large-sized pool fires in their incipient stages. This precursor flame that is a unique behavior for flame spread over hydrocarbon oils is still not exhaustively understood. A series of tests on flame spread over aviation fuel of RP-5 is well designed
Manhou Li, Changjian Wang, Shenlin Yang, Jiaqing Zhang   +3 more
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