Effect of porosity and element thickness on flame quenching for in-line crimped-ribbon flame arresters

Sun, Shaochen; Liu, Gang; Liu, Junxuan; Wang, Hongzhi; Ren, Jingjie; Bi, Mingshu

doi:10.1016/j.jlp.2017.09.017

Cited by 19 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The collision probability of free radicals with the parallel plate increased, the number of free radicals absorbed by the parallel plate increased and the number of free radicals involved in the reaction decreased, resulting in an imbalance between the heat absorbed by the parallel plate and the heat generated by combustion 27–31 . When the heat absorption by the parallel plate was greater than the heat release from combustion, the temperature at the front of the flame would drop below the ignition point, resulting in quenching of the flame 32,33 …”

Section: Resultsmentioning

confidence: 99%

“…[27][28][29][30][31] When the heat absorption by the parallel plate was greater than the heat release from combustion, the temperature at the front of the flame would drop below the ignition point, resulting in quenching of the flame. 32,33 The explosion pressure curves with and without parallel narrow channels in the initiating vessel and at the end of pipe are shown in Figures 4 and 5. It can be seen that the P max and (dP/dt) max in the initiating vessel and at the end of the pipe were both reduced when The P max dropped from 0.577 to 0.153 MPa, which dropped by 73.5%.…”

Section: Experimental Programmentioning

confidence: 99%

See 1 more Smart Citation

Investigation on quenching characteristics of parallel narrow channels for deflagration flames

Guo

Wang

et al. 2023

Fire and Materials

View full text Add to dashboard Cite

A set of experimental equipment for quenching the deflagration flame in linked vessels with parallel narrow channels was proposed. The quenching effects of the deflagration flame in the linked vessels were investigated, the influence law and mechanism of parallel narrow channels on the deflagration flame was analyzed. The results showed that the Pmax and the (dP/dt)max at each position were both lower than without parallel narrow channels, which indicated that the propagation of flame was inhibited by parallel narrow channels effectively, and the explosion intensity was also reduced. The pressure oscillation phenomenon inside the linked vessels disappeared due to the inclusion of parallel narrow channels. The deflagration flame was successfully quenched when the channel gaps were 0.5, 1.5, and 3 mm, but failed to be quenched when the channel gap was 6 mm. The quenching distance and the average propagation velocity of the deflagration flame in parallel narrow channels increased with the increase of the channel gap. When the channel gap was 6 mm, the deflagration flame completely passed through parallel narrow channels, and the average propagation velocity of deflagration flame was significantly greater than that when the deflagration flame was successfully quenched.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Experimental Programmentioning

confidence: 99%

Investigation on quenching characteristics of parallel narrow channels for deflagration flames

Guo

Wang

et al. 2023

Fire and Materials

View full text Add to dashboard Cite

show abstract

“…It is found that the space structure and shape have great influence on the law of explosion especially in the overpressure time history and flame propagation. The differences between the space structure and the shape contain the L/D ratio [2], vent size or location [3][4][5], obstacle shape or number [6][7][8], and turnings or bends [9,10]. Especially for the turnings or bends, researchers have made some findings and discoveries.…”

Section: Introductionmentioning

confidence: 99%

Large Eddy Simulation of Gasoline-Air Mixture Explosion in Long Duct with Branch Structure

Liu¹,

Du²,

Liang³

et al. 2020

Fluid Dynamics &Amp; Materials Processing

View full text Add to dashboard Cite

Gas explosion is a process involving complex hydrodynamics and chemical reactions. In order to investigate the interaction between the flame behavior and the dynamic overpressure resulting from the explosion of a premixed gasoline-air mixture in a confined space, a large eddy simulation (LES) strategy coupled with sub-grid combustion model has been implemented. The considered confined space consists of a long duct and four branches symmetrically distributed on both sides of the long duct. Comparisons between the simulated and experimental results have been considered with regard to the flame structure, flame speed and overpressure characteristics. It is shown that the explosion process can qualitatively be reproduced by the numerical simulation. Due to the branch structure, vortices are generated near the joint of the branch and long duct. Vortices rotate in opposite directions in the different branches. When the flame propagates into the branch, the flame front is influenced by the flow field structure and becomes more and more distorted. The overpressure displays a similar behavior in the two branches which have a different distance from the ignition point. It is finally shown that the overpressure change law can directly be put in relation with the shape of flame front.

show abstract

Combustion prevention of lithium-ion battery based on flame arrester with different meshes and layers of metal wire meshes

Ding,

Li,

Shao

et al. 2024

Journal of Energy Storage

View full text Add to dashboard Cite

Effect of porosity and element thickness on flame quenching for in-line crimped-ribbon flame arresters

Cited by 19 publications

References 15 publications

Investigation on quenching characteristics of parallel narrow channels for deflagration flames

Investigation on quenching characteristics of parallel narrow channels for deflagration flames

Large Eddy Simulation of Gasoline-Air Mixture Explosion in Long Duct with Branch Structure

Combustion prevention of lithium-ion battery based on flame arrester with different meshes and layers of metal wire meshes

Contact Info

Product

Resources

About