Ignition limit of a metallic particle in a mixture of two oxidizers

1973 ◽  
Vol 9 (2) ◽  
pp. 281-283 ◽  
Author(s):  
G. K. Ezhovskii ◽  
E. S. Ozerov ◽  
A. A. Yurinov
Keyword(s):  
Ignition Limit ◽  
Metallic Particle

Effects of a Charged Metallic Particle of Milli-size on DC Sparkover Voltages

2009 ◽  
Vol 129 (11) ◽  
pp. 834-835 ◽  
Author(s):  
Kiyoto Nishijima ◽  
Yusuke Higuchi ◽  
Yasuji Izawa
Keyword(s):  
Metallic Particle

scholarly journals Restraining Surface Charge Accumulation and Enhancing Surface Flashover Voltage through Dielectric Coating

Coatings ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 750
Author(s):  
Jixing Sun ◽  
Sibo Song ◽  
Xiyu Li ◽  
Yunlong Lv ◽  
Jiayi Ren ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Electric Field ◽  
Electric Fields ◽  
Transition Process ◽  
Metallic Particle ◽  
Particle Charging ◽  
Insulating Surfaces ◽  
Surface Flashover ◽  
Charging Time ◽  
The Impact

A conductive metallic particle in a gas-insulated metal-enclosed system can charge through conduction or induction and move between electrodes or on insulating surfaces, which may lead to breakdown and flashover. The charge on the metallic particle and the charging time vary depending on the spatial electric field intensity, the particle shape, and the electrode surface coating. The charged metallic particle can move between the electrodes under the influence of the spatial electric field, and it can discharge and become electrically conductive when colliding with the electrodes, thus changing its charge. This process and its factors are mainly affected by the coating condition of the colliding electrode. In addition, the interface characteristics affect the particle when it is near the insulator. The charge transition process also changes due to the electric field strength and the particle charging state. This paper explores the impact of the coating material on particle charging characteristics, movement, and discharge. Particle charging, movement, and charge transfer in DC, AC, and superimposed electric fields are summarized. Furthermore, the effects of conductive particles on discharge characteristics are compared between coated and bare electrodes. The reviewed studies demonstrate that the coating can effectively reduce particle charge and thus the probability of discharge. The presented research results can provide theoretical support and data for studying charge transfer theory and design optimization in a gas-insulated system.

scholarly journals Development of Calculation Model for Metallic Particle Motion Considering Discharge Phenomenon under High Voltage Electric Field in SF6 Gas

2006 ◽  
Vol 126 (1) ◽  
pp. 73-79
Author(s):  
Toshiaki Rokunohe ◽  
Tomohiro Moriyama ◽  
Yoshitaka Yagihashi ◽  
Makoto Koizumi ◽  
Fumihiro Endo
Keyword(s):  
Electric Field ◽  
High Voltage ◽  
Particle Motion ◽  
Calculation Model ◽  
Metallic Particle

Structure of laminar premixed flames of methane near the auto-ignition limit

2013 ◽  
Vol 160 (12) ◽  
pp. 2770-2782 ◽  
Author(s):  
Peter Habisreuther ◽  
Flavio Cesar Cunha Galeazzo ◽  
Chockalingam Prathap ◽  
Nikolaos Zarzalis
Keyword(s):  
Premixed Flames ◽  
Ignition Limit ◽  
Auto Ignition
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