Numerical investigation and analysis of indoor gas explosion: A case study of “6·13” major gas explosion accident in Hubei Province, China

Jiang, Hongye; Chi, Minghua; Hou, Diya; Ding, Hongchao; Xie, Zhong; Zeng, Xiangguo

doi:10.1016/j.jlp.2023.105045

Cited by 14 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The propagation and interaction of shock waves in complex environments, such as in gas storage, were studied. Jiang et al [21] used improved material constitutive and state equations to characterize gas explosion and reproduced the June 13 gas explosion accident in Shiyan, Hubei Province. The propagation process of shock wave inside buildings and the evolution process of building damage related to the accident were studied.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Dynamic Response of Gas Explosion in Uneven Coal Mine Tunnels Using CESE Reaction Dynamics Model

Du,

Chen,

Zhu

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

A numerical simulation method combining the detailed chemical reaction mechanism of methane deflagration with an approximate real tunnel structure was proposed to confirm whether the unevenness of the tunnel wall during a coal mine gas explosion can be ignored. The approximate real tunnel model and smooth wall tunnel model were developed using 3D modeling methods. The propagation and attenuation processes of shock waves in the two tunnel models, as well as the different dynamic responses of the two tunnel walls, were compared and analyzed. Research results show that the non-uniformity of the tunnel wall decreases the shock wave overpressure and propagation velocity. The peak overpressure reduction value of the shock wave reaches 81.91 kPa, and the shock wave overpressure reaches its peak at an extended maximum time of 7.4 ms. The stress distribution on the approximate real tunnel wall is discontinuous, the propagation speed of stress waves in the bend tunnel is slower, and the duration of high load is relatively low. The displacement of the approximate real tunnel after gas explosion is lower than that of tunnels with smooth walls, and the displacement of most measuring points on the tunnel on the right is only 1/3–1/2 that of the smooth tunnel.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Dynamic Response of Gas Explosion in Uneven Coal Mine Tunnels Using CESE Reaction Dynamics Model

Du,

Chen,

Zhu

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…The delayed ignition triggered the destructive vapor cloud explosion (VCE), which reportedly killed 11 people, injured more than 150, and caused an estimated $60 million in property damage . On June 13, 2021, a natural gas steel pipe in the fair market in Shiyan City, Hubei Province, China, leaked due to serious corrosion, followed by a huge explosion that killed 26 people, injured 138, etc …”

Section: Introductionmentioning

confidence: 99%

“…2 On June 13, 2021, a natural gas steel pipe in the fair market in Shiyan City, Hubei Province, China, leaked due to serious corrosion, followed by a huge explosion that killed 26 people, injured 138, etc. 3 Owing to the potential threats of accidental explosion, many researchers paid attention to the consequences of oil and gas explosion and its main influencing factors. Fakandu et al 4 investigated the effects of vent area and vent activation pressure on vented methane−air and ethylene−air explosions in a 0.00948 m 3 cylindrical enclosure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental and Numerical Study on Deflagration Characteristics of Large-Scale Propane–Air Mixture

Chen

Wang

et al. 2023

ACS Omega

View full text Add to dashboard Cite

Seven deflagration tests of a propane−air mixture were carried out in a 22.5 m 3 large-scale chamber. The effects of initial volume, gas concentration, and initial turbulence intensity on deflagration characteristics were analyzed. The main frequency of the explosion wave was quantitatively determined by the combination of the wavelet transform and energy spectrum analysis. The results show that the explosive overpressure is formed by the discharge of combustion products and secondary combustion, and the effects of turbulence and gas concentration on the explosive overpressure are higher than the initial volume. Under the condition of weak initial turbulence, the main frequency of gas explosion wave is between 32.13 and 48.33 Hz. Under strong initial turbulence conditions, the main frequency of the gas explosion wave increases with the increase of overpressure, and the empirical formula of the relationship between the main frequency and overpressure is summarized, which could provide theoretical support for the design of mechanical metamaterials for oil and gas explosion. Finally, the flame acceleration simulator numerical model was calibrated through tests, and the overpressure simulation values were in good agreement with the experimental data. The leakage, diffusion, and explosion of a liquefied hydrocarbon loading station in a petrochemical enterprise were simulated. The lethal distance and explosion overpressure at key buildings are predicted for different wind speed conditions. The simulation results can provide a technical basis for evaluating personnel injury and building damage.

show abstract

Dynamic response of spherical tanks subjected to the explosion of hydrogen-blended natural gas

Mo,

Wang,

Yang

et al. 2024

Fuel

View full text Add to dashboard Cite

Numerical investigation and analysis of indoor gas explosion: A case study of “6·13” major gas explosion accident in Hubei Province, China

Cited by 14 publications

References 20 publications

Numerical Study on the Dynamic Response of Gas Explosion in Uneven Coal Mine Tunnels Using CESE Reaction Dynamics Model

Numerical Study on the Dynamic Response of Gas Explosion in Uneven Coal Mine Tunnels Using CESE Reaction Dynamics Model

Experimental and Numerical Study on Deflagration Characteristics of Large-Scale Propane–Air Mixture

Dynamic response of spherical tanks subjected to the explosion of hydrogen-blended natural gas

Contact Info

Product

Resources

About