Advanced Functionalization of Plasma Bubble Flow Systems by Microdischarge and Its Innovative Applications

微放电等离子体气泡流系统的高级功能化及其创新应用

• 批准号: 23246032
• 负责人: NISHIYAMA Hideya
• 金额: $ 15.23万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-11-18 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23246032/
• 关键词: 機能性流体; パルス放電; 放電気泡; 気泡ジェット; 高活性化; ラジカル; 難分解性有機物分解; 水質浄化; バルス放電

OH and O radicals are successfully generated in the original and improved multiple bubble jet systems with pulsed discharge. Then water treatment characteristics such as decomposion of harmful persistent substances in solution were clarified experimentally. The dynamic behavior of bubble jet with discharge, streamer propagation at the bubble interface and radicals generation in the treated solution were investigated. The docomposition rate and energy efficiency of methylene blue and acetic acid were clarified for the applied voltage, duty ratio, frequency, gas flow rate and systems configuration for the optimized water treatment processes. Furthermore, the dynamic behavior model of bubble in a fine tube under DC discharge was proposed by visulalization analysis. Finally, plasma chemistry model was also established to clarify the radical generation process and radical life time in a bubble with high pressure and high temperature conditions.

在原有的和改进的脉冲放电多气泡射流系统中成功地产生了OH和O自由基。并通过实验阐明了水处理过程中有害持久性物质的降解等特性。研究了气泡射流在放电作用下的动力学行为、气泡界面流注的传播以及处理后溶液中自由基的产生。研究了电压、占空比、频率、气体流量和系统结构对亚甲基蓝和乙酸的降解率和能量效率的影响。通过可视化分析，建立了直流放电条件下细管内气泡的动力学行为模型。最后，建立了等离子体化学模型，阐明了在高温高压条件下气泡内自由基的产生过程和自由基的寿命。

项目成果

空気・メタンDBD 放電によるラジカル生成に与える温度および圧力の効果

温度和压力对空气/甲烷 DBD 放电产生自由基的影响

• 发表时间: 2012
• 作者: 守屋まどか;山縣侑生;栗山怜子;山本憲;佐藤洋平;尾方成信;田辺真人;高奈秀匡,田中康規,西山秀哉
• 通讯作者: 高奈秀匡,田中康規,西山秀哉

Comparisons of Two Models for the Simulation of a DC Arc Plasma Torch

• DOI: 10.1007/s11666-012-9860-0
• 发表时间: 2012-05
• 期刊: Journal of Thermal Spray Technology
• 影响因子: 3.1
• 作者: Renzhong Huang;H. Fukanuma;Y. Uesugi;Yasunori Tanaka

パルス放電気泡ジェットの可視化と水処理

脉冲电动泡沫射流和水处理的可视化

• 作者: 立石哲郎;栗山怜子;佐藤洋平;藤居由基;篠木祥平，新沼啓，高奈秀匡，西山秀哉
• 通讯作者: 篠木祥平，新沼啓，高奈秀匡，西山秀哉

A high-speed photoresist removal process using multibubble microwave plasma under a mixture of multiphase plasma environment

• DOI: 10.1063/1.4823530
• 发表时间: 2013-09
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: T. Ishijima;K. Nosaka;Yasunori Tanaka;Y. Uesugi;Yousuke Goto;H. Horibe

A nonequilibrium argon-oxygen planar plasma jet using a half-confined dielectric barrier duct in ambient air

• DOI: 10.1063/1.3698135
• 发表时间: 2012-03
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: Qing Li;H. Takana;Y. Pu;H. Nishiyama