Dynamic voltage-current characteristics for a water jet plasma arc

Yang, Jiaxiang; Lan, Sheng; Xu, Zuoming

doi:10.1063/1.2927475

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…The overall voltage variation is like sinusoidal wave, which also appears in the gas‐phase gliding arc [ 27 ] and arc discharge in water. [ 28 ] It can be seen that the current waveform basically exhibits a sinusoidal variation, but different from the relatively stable state of the voltage waveform, the current waveform shows some differences with the propagation process of LCA discharge plasma. When LCA discharge plasma breaks down the liquid film during the propagation process, the current waveform presents a sudden increase along with the spark‐like discharge, as shown in Figure 8 with a current of about 0.5 A at 0.13 ms.…”

Section: Resultsmentioning

confidence: 99%

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Characteristics of liquid‐phase continuous arc discharge plasma

Wang

Xin

Sun

2022

Plasma Processes & Polymers

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Liquid‐phase discharge has the advantages of high plasma density, simultaneous generation of multiple physical and chemical effects, and high gas‐liquid mass transfer efficiency. However, the large‐capacity treatment of liquid by plasma has always been a research difficulty. In this study, liquid‐phase continuous arc (LCA) discharge plasma is realized for the first time, which can quickly propagate for a long distance in liquid. To better understand this new type of liquid‐phase discharge, the time‐space characteristics, electrical characteristics, optical characteristics and particle characteristics of the LCA discharge plasma are diagnosed. The results show that the LCA discharge plasma can achieve a rapid propagation over 1 m in the liquid, and the propagation time is on the order of milliseconds. Meanwhile, the discharge can directly generate a variety of active species (·OH, ·O, ·H, H2O2) in the liquid, which can be continuously produced as the plasma moves. The LCA discharge plasma has good application prospects in water treatment, energy conversion, and so on.

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Section: Resultsmentioning

confidence: 99%

“…The overall voltage variation is like sinusoidal wave, which also appears in the gas-phase gliding arc [27] and arc discharge in water. [28] It can be seen that the current…”

Section: The Time-space and Electrical Characteristics Of Lca Dischar...mentioning

confidence: 99%

Characteristics of liquid‐phase continuous arc discharge plasma

Wang

Xin

Sun

2022

Plasma Processes & Polymers

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“…However the study of AC arc in water was less reported due to its limited applications. With the utilization of a propeller using water as a working fluid in aircraft [5] , and plasma burning technology used in wastewater treatment [6] , the study on AC arc in water has recently attracted much attention [7,8] .…”

Section: Introductionmentioning

confidence: 99%

Characteristic Analysis of AC Plasma Arc in Water

Zhou

Yang

2011

Plasma Sci. Technol.

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An experimental system of AC arc discharge in water was designed with pole-pole electrodes and a peak voltage of 1500 V and a test circuit was set up using virtual instrument technology. The mechanism of an AC plasma arc generated in water was analyzed. The voltagecurrent characteristic of the AC plasma arc was obtained from the waveform. The temperature characteristic was tested with a spectrum diagnosis system, and the effect of different electrode materials on the striking voltage and peak current was analyzed. The results show that when a power supply of 6 kW is applied on electrodes with a gap of 2 mm in water, the striking voltage is from 900 V to 1300 V, the arc voltage is from 40 V to 100 V, the arc current is from 2 A to 7 A, and the zero rest period is from 1 ms to 2 ms. In addition, the arc voltage and current are different for electrodes in aluminum, copper and stainless steel. The arc voltage is lower and the current is higher for an aluminum electrode than those for copper and stainless steel ones. The highest temperature of the arc is 7643 K.

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