On the Use of Semi-empirical Flame Models for Spreading Chaparral Crown Fire
Frontiers in Mechanical Engineering, 2019 Flame geometry plays a key role in shaping fire behavior as it can influence flame spread, radiative heat transfer and fire intensity. For wildland fire, thorough characterizations of flame geometry can help advance the derivation of comprehensive models
Jeanette Cobian-Iñiguez +3 more
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Research on the Combustion Characteristics of Coal Piles and the Fire Risks of Closed Coal Bunkers
Fire, 2023 Closed coal bunkers emerged as a novel form of coal storage for coal-fired power stations. Nevertheless, heat builds continually in the storage process because of the constant oxidation of coal and combined with the impact of a confined coal bunker ...
Lihong Zhao +4 more
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Quantitative Assessment of Flame Stability Through Image Processing and Spectral Analysis [PDF]
, 2015 This paper experimentally investigates two generalized methods, i.e., a simple universal index and oscillation frequency, for the quantitative assessment of flame stability at fossil-fuel-fired furnaces.
Zhou, Hao +4 more
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Influence of Mountain Wildfires on the Insulation Properties of Air Gaps in Power Grids
EnergiesThe complex terrain of China frequently leads to wildfires, which in turn pose a threat to the safe operation of power transmission lines. Studying the breakdown characteristics of air gaps under wildfire conditions is of great significance for ...
Fangrong Zhou +8 more
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Nihon Kikai Gakkai ronbunshu, 2020 This study investigated experimentally a response of premixed Bunsen flame to transient change in a fuel composition and a method to control the variation. Fuel mixtures were composed of methane, ethane and propane. The volumetric fraction of methane was
Shuichi UMEZAWA +4 more
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An experimental study on coflow diffusion combustion in a pellet-packed bed with different bed lengths [PDF]
Royal Society Open Science, 2018 In experimental investigations on axial symmetry, over-ventilated CH4/air diffusion combustion in a packed bed is executed to study the height, shape and stability of the flame.
Junrui Shi +6 more
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Effect of Nozzle Height on the Combustion Dynamics of Jet Fires in Rotating Flow Fields
FireIn this paper, the effect of nozzle height on the combustion dynamics of jet fires in rotating flow fields (JFRFFs) is systematically investigated through experimental and numerical simulations.
Qiang Zhang +7 more
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Effect of Equivalence Ratio on Flame Morphology, Thermal and Emissions Characteristics of Inverse Diffusion Porous Burner [PDF]
Journal of Applied Fluid MechanicsThe diffusion porous media combustion is one possible way to eliminate the drawbacks of the existing combustion systems. Inverse diffusion flame (IDF) has features of both premixed and non-premixed flames.
A. Dekhatawala, P. V. Bhale, R. Shah
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Flame projection lengths of horizontally oriented buoyant jet fires under different air pressures
Case Studies in Thermal Engineering, 2021 A horizontal buoyancy-controlled jet fire forms when a gaseous fuel leakage occurs in a pipe or a fuel tank and the fuel is ignited. In this study, the horizontal flame projection length (Lph) from such fires was experimentally investigated under ...
Jinfei Zhao +3 more
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, 2017 This paper presents a theory on the flame height of circulation-controlled firewhirls, approximately combining variable physical properties, a power-law vortex model, and a mass-diffusivity-ratio model. The theoretical results show that the dimensionless
Yu, DH, Zhang, P, Dehai Yu, Peng Zhang
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