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Plasma Generation in Water Using a Compact Electrode with a Semi-covered Structure

発表形態:
原著論文
主要業績:
主要業績
単著・共著:
共著
発表年月:
2023年04月
DOI:
10.1088/1402-4896/acc704
会議属性:
指定なし
査読:
有り
リンク情報:

日本語フィールド

著者:
Satoshi Ihara, Tomoya Matsuo and Kento Ishibashi 読み: イハラ サトシ,マツオ トモヤ,イシバシ ケント
題名:
Plasma Generation in Water Using a Compact Electrode with a Semi-covered Structure
発表情報:
Physica Scripta, IOP Science 巻: 98 号: 5 ページ: 055608
キーワード:
水質浄化,プラズマ,放電,キャビテーション
概要:
抄録:
This is a fundamental study on a design of a plasma reactor and its electrical and hydrodynamic properties. In this study, the electrode structure suitable for this method and its installation position in the reactor were examined. The structure uses a ceramic tube and a stainless steel rod, making it possible to use high conductivity water. The pressure inside the reactor was measured, and the electrode was placed at a position where cavitation was minimum. Then, the cavitation was observed in a sample of water with a conductivity of about 10 mS/m, and the plasma was also observed. It was found that about 20 % of the total power input between the electrodes was used for plasma generation. The hydrogen peroxide concentration proportional to the input power was observed, and a concentration of about 5.5 mg/L was obtained at an input power of 20 W when the volume of water was 1.8 L. And also the energy yield of H2O2 generation was 5.9 g/kWh.

英語フィールド

Author:
Satoshi Ihara, Tomoya Matsuo and Kento Ishibashi
Title:
Plasma Generation in Water Using a Compact Electrode with a Semi-covered Structure
Announcement information:
Physica Scripta, IOP Science Vol: 98 Issue: 5 Page: 055608
Keyword:
water purification, plasma, discharge, cavitation
An abstract:
This is a fundamental study on a design of a plasma reactor and its electrical and hydrodynamic properties. In this study, the electrode structure suitable for this method and its installation position in the reactor were examined. The structure uses a ceramic tube and a stainless steel rod, making it possible to use high conductivity water. The pressure inside the reactor was measured, and the electrode was placed at a position where cavitation was minimum. Then, the cavitation was observed in a sample of water with a conductivity of about 10 mS/m, and the plasma was also observed. It was found that about 20 % of the total power input between the electrodes was used for plasma generation. The hydrogen peroxide concentration proportional to the input power was observed, and a concentration of about 5.5 mg/L was obtained at an input power of 20 W when the volume of water was 1.8 L. And also the energy yield of H2O2 generation was 5.9 g/kWh.


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