Flame patterns of gasoline-air mixture deflagration in a confined space

Qi Sheng; Du Yang; Liang Jianjun; Zhang Peili

doi:10.11883/1001-1455(2016)06-0832-07

Volume 36 Issue 6

Oct. 2018

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Qi Sheng, Du Yang, Liang Jianjun, Zhang Peili. Flame patterns of gasoline-air mixture deflagration in a confined space[J]. Explosion And Shock Waves, 2016, 36(6): 832-838. doi: 10.11883/1001-1455(2016)06-0832-07

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Flame patterns of gasoline-air mixture deflagration in a confined space

doi: 10.11883/1001-1455(2016)06-0832-07

Department of Petroleum Supply Engineering, Logistical Engineering University, Chongqing 401331, China

Received Date: 2015-04-16
Rev Recd Date: 2015-06-26
Publish Date: 2016-11-25

Abstract

Abstract

In order to investigate the flame characteristics of gasoline-air mixture deflagration in a confined space, visualized experiments were performed at different equivalence ratios. Three flame patterns of gasoline-air deflagration were proposed: smooth spherical flame, fold spherical flame and curling flocculent flame. Based on the chemical kinetics and flame spectroscopy, the forming mechanism of each flame pattern was examined. Then, the critical equivalence ratio, here used to distinguish the flame patterns, was obtained by theoretical analysis and experimental measurement. Combined with the collected key parameters in the experiments, the differences in key parameters of each flame pattern were summarized, such as reaction products, rate of pressure rise, flame intensity, duration of flame and maximum pressure.
- mechanics of explosion,
- flame pattern,
- deflagration,
- gasoline-air mixture,
- confined space

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References(10)

References

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