Results 221 to 230 of about 19,873 (264)

Linear flame heights for various fuels

Combustion and Flame, 1964
Abstract The flame heights of linear diffusion flames for several different fuels have been correlated with a single parameter derived from a model assuming mixing controlled combustion. The assumptions involved are stated clearly.
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Measurements of the Visible Flame Height of a Swirl-Stabilized Kerosene Jet Diffusion Flame

Физика горения и взрыва, 2015
An experimental investigation of the structure of a kerosene-based Jet A1 unconfined flame is conducted for different fuel flow rates and momentum flux ratios (MFRs). A pressure swirl atomizer is used to atomize the fuel jet. It is found that the flame height increases with increasing MFR for a fixed fuel flow rate.
S. K. Birwa, D. P. Mishra
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Peak gas velocities and flame heights of buoyancy-controlled turbulent diffusion flames

Symposium (International) on Combustion, 1981
It is found that a parameter ξ, which is closely related to the local Froude number in a turbulent plume over an axisymmetric fire source, can be considered to be a universal constant throughout the nonreacting plume and, often, even into the intermittent flame region.
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Lift-off heights in underexpanded natural gas jet flames

Symposium (International) on Combustion, 1989
This paper describes an experimental investigation into the lift-off heights of flames stabilized in both subsonic and highly underexpanded natural gas jets. The results for the subsonic natural gas jet flames are compared with existing empirical correlations, where the lift-off height is given as a linear function of exit velocity.
A.D. Birch, G.K. Hargrave
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Height of Flames Projecting from Compartment Openings

2007
External flaming from buildings occurs as a result of a large amount of fuel being available in the room of fire origin in comparison to the amount of ventilation provided. The size of the openings in a compartment affects the amount of oxygen available within the fire room, and hence the amount of combustion that can take place inside.
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Calibration and Field Testing of Passive Flame Height Sensors

International Journal of Wildland Fire, 1992
The concept of a passive flame height sensor involves thin strings permeated with fire retardant or solder which record heights of flame contact. Both types of sensors were calibrated during 12 experimental test fires with respect to flame heights measured on video tape.
MA Finney, RE Martin
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Fire Plumes, Flame Height, and Air Entrainment

2016
Practically all fires go through an important, initial stage in which a coherent, buoyant gas stream rises above a localized volume undergoing combustion into surrounding space of essentially uncontaminated air. This stage begins at ignition, continues through a possible smoldering interval, into a flaming interval, and may be said to end prior to ...
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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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Device for Varying Burner Height in Beckman Flame Photometer

Analytical Chemistry, 1957
An attachment for reproducibly raising or lowering the Beckman atomizer-burner is described. Different parts of the flame can be brought into focus on the slit without changing the mirror adjustment.
Irving. May, Henry. Kramer, Edward L. Curtis   +2 more
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Transition from momentum to buoyancy-controlled turbulent jet diffusion flames and flame height relationships

Combustion and Flame, 1993
Abstract Based on dimensional arguments for the physics in turbulent diffusion flames, an analysis is presented for the transition characteristics from momentum-to buoyancy-controlled turbulent jet diffusion flames. This analysis extends previous correlations and investigations on the dynamics of buoyant jet flames and pool fires [Combust.
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