Results 1 to 10 of about 44,661 (206)

Effect of CH4–Air Ratios on Gas Explosion Flame Microstructure and Propagation Behaviors [PDF]

Energies, 2012
To reveal the inner mechanism of gas explosion dynamic behavior affected by gas equivalent concentration, a high speed Schlieren image system and flow field measurement technology was applied to record the gas explosion flame propagation and flame ...
Ying Zhang, Yin Zhang, Xianfeng Chen
doaj   +4 more sources

Cool Flame Propagation Speeds

Combustion Science and Technology, 2007
Cool flames are studied at reduced-gravity in a closed, unstirred, spherical reactor to minimize complexities associated with natural convection. Under such conditions, transport is controlled by diffusive fluxes and the flames are observed to propagate ...
Foster, Michael R, Pearlman, Howard
core   +3 more sources

Dimensional study of flexible protection device based on methane explosion protection mechanism [PDF]

Scientific Reports
Flexible materials deform during flame propagation, altering their blockage ratio and the force exerted on the fluid due to various influencing factors.
Qinghua Zhang, Yulong Duan, Xianqi Duan, Rui Lang, Jun Long   +4 more
doaj   +2 more sources

Numerical Simulation of Flame Combustion Characteristics of Tail Gas From the Copper Slag Depleted Reduction

Frontiers in Energy Research, 2022
The tail gas with relatively high calorific value, generated from the depleted reduction of copper slag, can be used as fuel for gas turbines. In this study, the flame speed calculation module in PREMIX of CHEMKIN was used to simulate the combustion ...
Huiping Sun, Haojie Xie, Haojie Xie, Siyi Luo, Weiwei Zhang, Zongliang Zuo, Guo Xianjun   +6 more
doaj   +1 more source

Experimental study on inhibition effect of inert gas parameters on gas deflagration flame propagation

Meikuang Anquan, 2023
In this paper, we continue to build an ultra-high speed laser schlieren testing system on the self-developed mesoscale explosion pipeline to explore the flame propagation characteristics of nitrogen and carbon dioxide inhibiting gas/air premixed gas ...
Yang HU, Yuxin YANG, Yundong SHI, Shuo LYU, Hong TAO   +4 more
doaj   +1 more source

Suppression characteristics of multi-layer metal wire mesh on premixed methane-air flame propagation

Frontiers in Materials, 2023
Metal wire mesh is widely used in the energy industry for its excellent protective properties as a fire stopping and explosion isolating material. In this study, the suppression characteristics of different layers of metal mesh on the dynamic behavior of
Xiangrui Feng, Hongming Zhang, Hongming Zhang, Fangyuan Si, Jiawei Dou, Mingxuan Li, Long Wu, Shengkang Wang, Lanming Zhao   +8 more
doaj   +1 more source

Study on the propagation velocity of methane/air pleated flames based on image processing and fractal interpolation

AIP Advances, 2021
A self-developed gas explosion experimental system was used to detonate methane/air mixtures of different concentrations by different ignition methods, and the propagation processes of spherical flames and irregular flames formed by the explosions were ...
Haiyan Wang, Lei Zhang, Junpeng Zhang, Peipei Wang, Lang Hu, Zengle Guo   +5 more
doaj   +1 more source

The Interaction between In-Cylinder Turbulent Flow and Flame Front Propagation in an Optical SI Engine Measured by High-Speed PIV

Energies, 2022
The relationship between the flow field and flame propagation is essential in determining the dynamics and effects of turbulent flow in an optical SI engine.
Yuji Ikeda
doaj   +1 more source

Experimental Study on the Influence of Different Coal Species on Gas and Coal Dust Explosion

Meikuang Anquan, 2020
To further explore the propagation law of gas coal dust explosion with different coal species involved, 3 kinds of representative coal dust were tested in a self-made semi-enclosed pipe, and the flame propagation speed, flame surface luminescence ...
JING Guoxun, SHAO Hongyuan, WU Yulou, GUO Shaoshuai, LIU Chuang, ZHANG Shengqi
doaj   +1 more source

Flame propagation behavior of propane–air premixed combustion in a confined space with two perforated plates at different initial pressures

Energy Science & Engineering, 2022
The aim of this paper is to analyze local autoignition induced by secondary flame acceleration. The secondary flame acceleration process and the local autoignition formation mechanism at the condition of the secondary flame acceleration propagation were ...
Yangyang Yu, Junhong Zhang, Jun Wang, Dan Wang   +3 more
doaj   +1 more source