Results 21 to 30 of about 15,158 (313)

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

open access: yesMeikuang 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

Natural Gas-Oxygen Combustion in a Super-Critical Carbon Dioxide Gas Turbine Combustor [PDF]

open access: yesE3S Web of Conferences, 2020
The paper presents results for chemical kinetics of combustion process in the combustor of oxy-fuel cycle super-critical carbon dioxide gas turbine based on the Allam thermodynamic cycle.
Komarov Ivan   +4 more
doaj   +1 more source

Obstacle Impacts on Methane-Air Flame Propagation Properties in Straight Pipes

open access: yesFire, 2023
Accidental flame initiation to propagation in pipes carrying flammable gases is a significant safety concern that can potentially result in loss of life and substantial damage to property.
Mohammadreza Shirzaei   +2 more
doaj   +1 more source

Measurement of turbulent flame speed of natural gas/air mixtures at elevated pressure [PDF]

open access: yes, 2010
Turbulent flame speeds were measured over a range of pressures to 0.8 MPa using a jet flow apparatus fired with a synthetic mixture representing a mid-European natural gas. The equivalence ratio empty set was 0.9.
Witton, John J., Li, L.
core   +1 more source

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

open access: yesEnergies, 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

Calculation of the stationary flame propagation velocity by the variational principle of irreversible thermodynamics

open access: yesCase Studies in Thermal Engineering, 2022
Numerical algorithm for the prediction of the stationary flame propagation velocity over premixed gas mixture has been formulated by using the foundations of non-equilibrium thermodynamics.
Alexander I. Karpov   +2 more
doaj   +1 more source

Original scale simulation of gas explosion at heading face in coal mines

open access: yesMeikuang Anquan, 2023
To study the propagation of gas explosion shock wave and flame in coal mine heading face at real scale, the numerical simulation software of gas explosion was used to establish roadway models of different scales, and the influence of premixed gas ...
Yunfei ZHU   +3 more
doaj   +1 more source

Flame advection and propagation algorithms [PDF]

open access: yesJournal of Computational Physics, 1980
We present a simple algorithm for approximating the motion of a thin flame front of arbitrary shape and variable connectivity, which is advected by a fluid and which moves with respect to the fluid in the direction of its own normal. As an application, we examine the wrinkling of a flame front by a periodic array of vortex structures.
openaire   +3 more sources

Curvature and confinement effects for flame speed measurements in laminar spherical and cylindrical flames. [PDF]

open access: yes, 2013
This paper discusses methods used to obtain laminar flame speeds in spherical laminar premixed flames. Most recent studies express the laminar flame consumption speed as ρb/ρudR/dt, where R is the flame radius and ρb/ρu is the ratio of the burnt to the ...
Bonhomme, Adrien   +2 more
core   +1 more source

Numerical Simulation on Flame Propagation Characteristics of Coal Dust Explosion in Diagonal Structure Network

open access: yesChemical Engineering Transactions, 2018
In order to study the propagation characteristics of coal dust explosion in the angular branch, gambit software is used to establish a model of the pipe network and to divide the grid.
Baichao Song, Yucheng Li
doaj   +1 more source

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