Results 321 to 330 of about 1,445,599 (361)

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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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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Temperature evolution and external flame height through the opening of fire compartment: Scale effect on heat/mass transfer and revisited models

, 2021
Xiepeng Sun, Longhua Hu, Xiaolei Zhang, Yong Yang, Fei Ren, X. Fang, Keke Wang, Hongyu Lu   +7 more
semanticscholar   +1 more source

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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Fire Plumes and Flame Heights

2022
Björn Karlsson, James G. Quintiere
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Experimental investigation of flame behaviors of turbulent diffusion flames with different ullage heights

Fire Safety Journal, 2022
Jinlong Zhao, Xiang Zhang, Guangheng Song, Jianping Zhang, Yongzheng Yao, Hong Huang   +5 more
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Determining Flame Height And Flame Pulsation Frequency And Estimating Heat Release Rate From 3D Flame Reconstruction

2005
A method of creating a 3-dimensional point cloud representation of a buoyant diffusion flame from video footage from multiple angles has been created. This point cloud contains probabilities that the flame existed over the period the method was applied. This thesis uses these methods to determine flame height, flame pulsation frequency and flame volume
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Experimental investigation and analysis of flame height transition and air entrainment of near-wall rectangular-source fires at various distances

Proceedings of the Combustion Institute, 2020
Xiaolei Zhang, Longhua Hu, Xiaochun Zhang, Fei Ren   +3 more
semanticscholar   +1 more source

Prediction of the Height of Turbulent Diffusion Buoyant Flames

Combustion Science and Technology, 1970
Abstract A mathematical model of a turbulent diffusion buoyant flame based on a number of simplifying assumptions is presented. The model predicts the general characteristics of a free-burning fire in both the region where combustion is occurring and the hot gas plume formed above the combustion section.
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