Effect of Gas Bubbling on the Physical and Chemical Activity of High Voltage Discharge Plasma in Water

2022 International Conference on Advancement in Electrical and Electronic Engineering (ICAEEE) Pub Date : 2022-02-24 DOI:10.1109/icaeee54957.2022.9836373

Ruma, H. Hosano, T. Sakugawa, H. Akiyama

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Abstract

High voltage pulsed electric discharge in water is an effective method for generation of enormous chemical active species and reactive radicals. Discharge propagation in gas bubbling water influence the discharge characteristics and the production of chemical active species in water. A magnetic pulsed compression (MPC) pulse power generator with 0.5 J/pulse, 0-30kV is employed to generate discharge in water under both with and without gas bubbling condition. The main objective of this research is to investigate the effect of gas bubbling on the physical characteristics of discharge and to measure H2O2 as an indicator of chemical species formation in water. Depending on the bubbles propagation, discharge characteristics changes from streamer to arc in gas bubbling water, where only streamer discharge propagates in water without gas bubbling. The concentration of H2O2 is higher by the discharge in the presence of gas bubbling than without gas bubbling in water.

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气体鼓泡对水中高压放电等离子体物理化学活性的影响

水中高压脉冲放电是产生大量化学活性物质和活性自由基的有效方法。气体鼓泡水中的排放传播影响着气体鼓泡水中的排放特性和化学活性物质的产生。采用0.5 J/脉冲、0 ~ 30kv的磁脉冲压缩(MPC)脉冲发电机组，在有和无气体鼓泡条件下进行水中放电。本研究的主要目的是研究气体鼓泡对排放物物理特性的影响，并测量H2O2作为水中化学物质形成的指标。根据气泡传播的不同，气体鼓泡水中的放电特性从流形到电弧的变化，在没有气体鼓泡的水中只有流形放电传播。有气体冒泡时的排放比水中无气体冒泡时的排放H2O2浓度高。

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2022 International Conference on Advancement in Electrical and Electronic Engineering (ICAEEE)

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