Journal ArticleDOI
Experimental study of overpressure and temperature field behaviors of a methane-air mixture with different ignition positions, solid structure obstacles and initial turbulence levels
TLDR
In this article, the authors investigated the internal overpressure and external temperature behaviors of explosion venting in a self-designed 4.5m3 square chamber, by changing the solid obstacles, ignition positions, and initial turbulence levels.About:
This article is published in Fuel.The article was published on 2021-03-01. It has received 19 citations till now. The article focuses on the topics: Ignition system & Overpressure.read more
Citations
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Journal ArticleDOI
Effect of obstacle on the H2/CO/Air explosion characteristics under lean-fuel conditions
TL;DR: In this paper , the effect of obstacle on the syngas (H2/CO) explosion characteristics under lean-fuel conditions was investigated, and the relationship between the flame propagation characteristics and explosion intensity, and effects of Syngas concentration, obstacle number and blocking rate on explosion parameters were obtained.
Journal ArticleDOI
Effect of initial turbulence on explosion behavior of stoichiometric methane-ethylene-air mixtures in confined space
TL;DR: In this paper , the effects of turbulence intensity and fuel composition on explosion characteristics were studied in the turbulent explosion process of stoichiometric CH 4 /C 2 H 4 /air mixtures by using a standard 20 L sphere explosion system and powder storage tank as the turbulence generator.
Journal ArticleDOI
Experimental investigation on the effect of obstacle position on the explosion behaviors of the non-uniform methane/air mixture
Qi-Feng Wu,Minggao Yu,Kai Zheng +2 more
TL;DR: In this paper , the effect of obstacle position on the explosion behavior of non-uniform methane/air mixture is investigated experimentally, and the results show that the triple flame structure appears during the combustion of the nonuniform mixture, which appears delayed with increasing obstacle position.
Journal ArticleDOI
The effect of gas jets on the explosion dynamics of hydrogen-air mixtures
Xinyu Chang,Chunhua Bai +1 more
TL;DR: In this paper , the influence of gas jets on explosion behavior of hydrogen-air mixtures with various hydrogen concentrations (from 10% to 70%) at different initial pressures (i.e., 50kPa, 100 kPa, 150 kPa and 200 kPa) was investigated.
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Effects of the length and pressure relief conditions on propagation characteristics of natural gas explosion in utility tunnels
TL;DR: In this article, an experimental apparatus for modeling the process of the natural gas explosion in utility tunnels is established to investigate the effects of the gas compartment length and pressure relief conditions on the flame behaviors, and several parameters related to the consequence severity of gas explosion are studied comprehensively.
References
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Journal ArticleDOI
Experimental and numerical study on laminar burning characteristics of premixed methane–hydrogen–air flames
TL;DR: In this article, an experimental and numerical study on laminar burning characteristics of premixed premixed methane-hydrogen-air flames was conducted at room temperature and atmospheric pressure.
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Internal combustion engines fueled by natural gas—hydrogen mixtures
TL;DR: In this article, a survey of research papers on utilization of natural gas-hydrogen mixtures in internal combustion engines is carried out, in which a mixture of low hydrogen percentage is suitable for using.
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On the mechanisms of pressure generation in vented explosions
TL;DR: In this article, experiments conducted in near-cubic enclosures with low failure pressure explosion relief panels have been used to identify the physical mechanisms responsible for the generation of significant pressure peaks during vented explosions.
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Laminar flame speeds and ignition delay times of methane–air mixtures at elevated temperatures and pressures
TL;DR: In this article, the performance of GRI Mech 3.0, USC Mech II, and Aramco Mech 1.3 at elevated temperatures and pressures was evaluated using a constant volume bomb and shock tube.
Journal ArticleDOI
Effect of Ignition Location, Vent Size, and Obstacles on Vented Explosion Overpressures in Propane-Air Mixtures
TL;DR: In this article, the authors present results of vented explosion tests using stoichiometric propane-air mixtures in a room-size enclosure 63.7m3 in volume, focused on the effect of ignition location, vent size, and obstacles on explosion development and pressure buildup.