Electric ignition energy evaluation and the energy distribution structure of energy released in electrostatic discharge process

doi:10.1088/1674-1056/26/10/105202

中国物理B ›› 2017, Vol. 26 ›› Issue (10): 105202-105202.doi: 10.1088/1674-1056/26/10/105202

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Electric ignition energy evaluation and the energy distribution structure of energy released in electrostatic discharge process

Qingming Liu(刘庆明), Jinxiang Huang(黄金香), Huige Shao(邵惠阁), Yunming Zhang(张云明)

1. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;
2. Department of Fire Protection Engineering, Chinese People's Armed Police Force Academy, Langfang 065000, China

收稿日期:2017-06-13 修回日期:2017-07-28 出版日期:2017-10-05 发布日期:2017-10-05
通讯作者: Qingming Liu E-mail:qmliu@bit.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11572044) and the National Key Research and Development Program of China (Grant No. 2017YFC0804705).

Electric ignition energy evaluation and the energy distribution structure of energy released in electrostatic discharge process

Qingming Liu(刘庆明)¹, Jinxiang Huang(黄金香)¹, Huige Shao(邵惠阁)¹, Yunming Zhang(张云明)²

1. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;
2. Department of Fire Protection Engineering, Chinese People's Armed Police Force Academy, Langfang 065000, China

Received:2017-06-13 Revised:2017-07-28 Online:2017-10-05 Published:2017-10-05
Contact: Qingming Liu E-mail:qmliu@bit.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11572044) and the National Key Research and Development Program of China (Grant No. 2017YFC0804705).

摘要/Abstract

摘要：

Ignition energy is one of the important parameters of flammable materials, and evaluating ignition energy precisely is essential to the safety of process industry and combustion science and technology. By using electric spark discharge test system, a series of electric spark discharge experiments were conducted with the capacitor-stored energy in the range of 10 J, 100 J, and 1000 J, respectively. The evaluation method for energy consumed by electric spark, wire, and switch during capacitor discharge process has been studied respectively. The resistance of wire, switch, and plasma between electrodes has been evaluated by different methods and an optimized evaluation method has been obtained. The electric energy consumed by wire, electric switch, and electric spark-induced plasma between electrodes were obtained and the energy structure of capacitor-released energy was analyzed. The dynamic process and the characteristic parameters (the maximum power, duration of discharge process) of electric spark discharge process have been analyzed. Experimental results showed that, electric spark-consumed energy only accounts for 8%-14% of the capacitor-released energy. With the increase of capacitor-released energy, the duration of discharge process becomes longer, and the energy of plasma accounts for more in the capacitor-released energy. The power of electric spark varies with time as a damped sinusoids function and the period and the maximum value increase with the capacitor-released energy.

关键词: electric spark, discharge characteristics, energy structure, ignition energy

Abstract:

Key words: electric spark, discharge characteristics, energy structure, ignition energy

中图分类号: (Electric discharges)

52.80.-s

52.77.-j (Plasma applications) 52.75.Kq (Plasma switches (e.g., spark gaps))

刘庆明, 黄金香, 邵惠阁, 张云明. Electric ignition energy evaluation and the energy distribution structure of energy released in electrostatic discharge process[J]. 中国物理B, 2017, 26(10): 105202-105202.

Qingming Liu(刘庆明), Jinxiang Huang(黄金香), Huige Shao(邵惠阁), Yunming Zhang(张云明). Electric ignition energy evaluation and the energy distribution structure of energy released in electrostatic discharge process[J]. Chin. Phys. B, 2017, 26(10): 105202-105202.

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Electric ignition energy evaluation and the energy distribution structure of energy released in electrostatic discharge process

Electric ignition energy evaluation and the energy distribution structure of energy released in electrostatic discharge process

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