Spatiotemporal distribution of surface charges in square-grid state in a dielectric barrier discharge

2018 ◽  
Vol 25 (3) ◽  
pp. 033510
Author(s):  
Fang Hao ◽  
Lifang Dong ◽  
Tian Du ◽  
Ying Liu ◽  
Weili Fan ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Spatiotemporal Distribution ◽  
Surface Charges ◽  
Dielectric Barrier ◽  
Square Grid

Distribution and evolution of surface charge in surface dielectric barrier discharge driven by AC and pulse dual power supply

2021 ◽  
Author(s):  
Siqi Yu ◽  
Huijie Yan ◽  
Jiaqi Li ◽  
ting li ◽  
Yuying Wang ◽  
...  
Keyword(s):  
Surface Charge ◽  
Dielectric Barrier Discharge ◽  
Power Supply ◽  
Barrier Discharge ◽  
Surface Charges ◽  
Dielectric Barrier ◽  
Positive Pulse ◽  
Surface Dielectric Barrier Discharge ◽  
Filamentary Discharge ◽  
Dual Power

Abstract The evolution of surface charge in surface dielectric barrier discharge (SDBD) is observed by using Pockels effect. SDBD is driven by sine AC and pulse dual-power supply voltage. The filamentary discharge and glow-like discharge are enhanced by superimposing positive pulse on sine trough and negative pulse on sine crest, respectively. The interval of enhanced discharge is adjusted by pulse repetition rate (PRF). The formation and decay of surface charges are analyzed at low PRF, and the accumulation effect is analyzed at high PRF. The results showed that the decay rates of charges decrease with increasing distance from the exposed electrode. When a positive pulse is superimposed on sine trough, the traces of positive charges are filaments with long extending lengths, which are the footprints of discharge channels. The lifetime of positive charges is hundreds of AC cycles (tens of milliseconds). Under certain conditions, subsequent glow-like discharge evolves as “flying” above the dielectric surface (3D propagation). Most of the negative charges are neutralized in subsequent filamentary discharge. Some negative charges accumulate downstream and exist longer than positive charges. In the case of negative pulses superimposed on sine crest, the enhanced glow-like discharge appears 3D propagation. The propagation distance is much smaller than that of positive pulse. Most of the negative charges are uniformly distributed near the exposed electrodes with a short lifetime (a few hundred microseconds) and are quickly neutralized in subsequent discharges. The occurrence of 3D propagation requires certain conditions and the mechanism needs further research.

Square grid state in dielectric barrier discharge system

2009 ◽  
Vol 16 (12) ◽  
pp. 122308 ◽  
Author(s):  
L. F. Dong ◽  
S. F. Li ◽  
W. L. Fan ◽  
Y. Y. Pan
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Discharge System ◽  
Dielectric Barrier ◽  
Square Grid

Square Grid Superlattice Pattern in Dielectric Barrier Discharge System

2015 ◽  
Vol 84 (10) ◽  
pp. 104501 ◽  
Author(s):  
Yenan Gao ◽  
Lifang Dong ◽  
Xinpu Zhang ◽  
Yuyang Pan
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Discharge System ◽  
Dielectric Barrier ◽  
Square Grid

Effect of volume and surface charges on discharge structure of glow dielectric barrier discharge

2013 ◽  
Vol 20 (8) ◽  
pp. 083515 ◽  
Author(s):  
Shao-Wei Xu ◽  
Feng He ◽  
Yu Wang ◽  
Lulu Li ◽  
Ji-Ting Ouyang
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Surface Charges ◽  
Dielectric Barrier ◽  
Discharge Structure

Spatiotemporal Distribution of a Monofilamentary Dielectric Barrier Discharge in Pure Nitrogen

2011 ◽  
Vol 39 (11) ◽  
pp. 2128-2129 ◽  
Author(s):  
Neermalsing Sewraj ◽  
Robert J. Carman ◽  
Nofel Merbahi ◽  
Frédéric Marchal ◽  
Estelle Leyssenne
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Spatiotemporal Distribution ◽  
Pure Nitrogen ◽  
Dielectric Barrier

Study of the square grid pattern in dielectric barrier discharge by a CCD digital camera

2009 ◽  
Author(s):  
Lifang Dong ◽  
Shuai Wang ◽  
Han Yue ◽  
Hong Xiao ◽  
Yujie Yang ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Digital Camera ◽  
Grid Pattern ◽  
Dielectric Barrier ◽  
Square Grid
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