Effect of Vent Area on Dynamic Characteristics of Premixed Methane/Air Explosions in End-vented Channels with Different Length/Diameter Ratios

Zhang, Qiang; Chen, Guohua; Huang, Xianjia; Xu, Qi; Xie, Mulin; Ma, Jiajun

doi:10.1080/00102202.2023.2189518

Cited by 1 publication

(1 citation statement)

References 52 publications

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“…Wang et al 10 carried out an explosion‐venting experiment of a methane–air mixture in a pipeline, and found that with the increase of the vent area, the flame propagation velocity of the three circular vents increased. Zhang et al 11 conducted explosion‐venting experiments of methane–air mixtures in pipes, and found that the vent area was the critical external factor causing tulip flames and distorted tulip flames. Rocourt et al 12 conducted an experiment on the effect of venting surface size on the overpressure of a hydrogen–air explosion in a square container.…”

Section: Introductionmentioning

confidence: 99%

Influence of the opening pressure of explosion‐venting surface on methane deflagration characteristics in municipal sewage confined spaces

et al. 2023

Process Safety Progress

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This study investigates the influence of the opening pressure of the explosion‐venting surface (EVS) of a vertical branch pipeline on the deflagration characteristics of methane at different concentrations. The results indicate that the increase in the opening pressure of the EVS promotes the accumulation of deflagration pressure in the horizontal pipeline, whereas the venting effect in the vertical branch pipeline attenuates the peak value of the deflagration pressure. The vertical branch pipeline has both “promoting” and “inhibiting” effects on the flame propagation speed in the horizontal pipeline. With an increase in the methane concentration and opening pressure of the EVS, the promoting effect gradually plays a dominant role, resulting in an increase in the flame propagation speed. In actual industrial production and daily life, in order to avoid explosion hazards, it is essential to install EVSs or reduce their opening pressure in a confined space.

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Section: Introductionmentioning

confidence: 99%

Influence of the opening pressure of explosion‐venting surface on methane deflagration characteristics in municipal sewage confined spaces

et al. 2023

Process Safety Progress

View full text Add to dashboard Cite

show abstract

Effect of Vent Area on Dynamic Characteristics of Premixed Methane/Air Explosions in End-vented Channels with Different Length/Diameter Ratios

Cited by 1 publication

References 52 publications

Influence of the opening pressure of explosion‐venting surface on methane deflagration characteristics in municipal sewage confined spaces

Influence of the opening pressure of explosion‐venting surface on methane deflagration characteristics in municipal sewage confined spaces

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