Effect of ignition energy on the explosion process and the dynamic response of propane-air premixed gas

ZHOU Ning; ZHANG Guowen; WANG Wenxiu; ZHAO Huijun; YUAN Xiongjun; HUANG Weiqiu

doi:10.11883/bzycj-2017-0049

Volume 38 Issue 5

Jul. 2018

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ZHOU Ning, ZHANG Guowen, WANG Wenxiu, ZHAO Huijun, YUAN Xiongjun, HUANG Weiqiu. Effect of ignition energy on the explosion process and the dynamic response of propane-air premixed gas[J]. Explosion And Shock Waves, 2018, 38(5): 1031-1038. doi: 10.11883/bzycj-2017-0049

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Effect of ignition energy on the explosion process and the dynamic response of propane-air premixed gas

doi: 10.11883/bzycj-2017-0049

Jiangsu Key Laboratory of Oil-Gas Storage and Transportation Technology, Changzhou University, Changzhou 213016, Jiangsu, China

Received Date: 2017-02-17
Rev Recd Date: 2017-05-09
Publish Date: 2018-09-25

Abstract

Abstract

In a 12 m long seamless stainless steel pipe, the influence of ignition energy on the propagation characteristics of propane air mixture in the closed tube and the influence of shock wave on the dynamic loading of the pipe wall are investigated. The results indicate that the dynamic initial ignition energy has a significant impact on explosion flame propagation and wall response of premixed gas. The greater the ignition energy, the greater explosion intensity, explosion pressure peak pressure and maximum wall strain is. And the pressure wave and wall strain development are in good agreement. In the process of flame propagation, the flame will briefly extinguished and happen again by reflection effect from the end of the pipeline. The strain signal is mainly distributed in the frequency range of 0-781.25 Hz and the maximum strain rate of the pipe wall subjected to shock wave loading exceeds 10^-3 s^-1. So the pipe wall strain belongs to the dynamic response in the experiment.
- ignition energy,
- propane explosion,
- pressure,
- wall strain,
- dynamic loading

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References(16)

References

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