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Inhibition research of double protection on flame propagations of hydrogen doped methane explosions 认领 引用
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作者 Xingyan Cao Min Zhang +3 位作者 Yue Wang Xiang Zhou Zhirong Wang Shaochen Sun 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第4期170-182,共13页
This experiment aimed at the synergy effect of ripple flame arrester and water mist on hydrogen doped methane explosions.By comparing the dynamic flame resistance process and changes in explosion parameters,the mechan... This experiment aimed at the synergy effect of ripple flame arrester and water mist on hydrogen doped methane explosions.By comparing the dynamic flame resistance process and changes in explosion parameters,the mechanism of synergy inhibition was clarified.Result explains that both synergies enhanced the protection efficiency of gas explosions.Spray conditions could greatly affect the propagation velocity of flames entering narrow channels,thus affecting its stagnation time inside the ripple hole and quenching probability.The synergy was attributed to the combined action of mist parameters on weakening and enhancing effects.As the nozzle type enlarged,the increase in mist parameter promoted a decrease in pressures at both ends,even the complete inhibition was achieved.Inhibition effect was gradually enhanced as the spray time prolonged,and explosion-resistance parameters were also greatly decreased.But the inhibition result showed a variation process of“failure-success-failure”as the spray pressure enlarged,and explosion-resistance parameters also displayed a change of first reducing and then rising.Under the synergy effect,the inhibition could be achieved as the generation rate of free radicals was lower than the destruction rate and flame temperature at the ripple hole outlet was lower than the critical flame resistance temperature. 展开更多
关键词 Hydrogen doped methane Explosions Synergy inhibition Microscale Heat transfer
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Study on the resistance characteristics of corrugated flame arrester for hydrogen explosion 认领 引用 被引量：1
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作者 Xingyan Cao Xiang Zhou +6 位作者 Jiyuan Zhou Zhenhua Wang Anqi Li Sheng Bi Shanyang Wei Shaochen Sun Zhanwu Ding 《Clean Energy》 EI CSCD 2025年第1期250-262,共13页
The resistance characteristics of a corrugated flame arrester in hydrogen explosions were investigated using a visual explosion-retardant system.By varying the structural parameters of the corrugated flame-retardant s... The resistance characteristics of a corrugated flame arrester in hydrogen explosions were investigated using a visual explosion-retardant system.By varying the structural parameters of the corrugated flame-retardant system and the concentration of hydrogen,the flame resistance characteristics and the mechanisms affecting hydrogen explosions were summarized.The results indicate that there was a clear correlation between the flame propagation and pressure rise during explosion resistance.When the flame resistance failed,a significant enhancement effect was observed at the backend of the flame-retardant system.Additionally,a noticeable oscillation occurred in the initial stage of flame propagation due to the obstruction caused by the flame-retardant system.The thickness and porosity of the flame-retardant system,along with the hydrogen concentration,influenced the intensities of shock waves and flames entering the narrow channel,as well as the physical and chemical effects during internal propagation,thereby affecting the overall flame resistance. 展开更多
关键词 corrugated flame arrester flame resistance characteristics corresponding relationship flame structure failure acceleration
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