High density and large area atmospheric plasma production and the industrial application by using a variable energy type barrier discharge

变能量型势垒放电高密度大面积大气等离子体的制备及工业应用

基本信息

批准号：
14380207
负责人：
FUJIWARA Tamiya
金额：
$ 3.97万
依托单位：
Iwate University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

项目摘要

New system CCMD (Capacity-Coupled Multi Discharge : Electric discharge type which replaced the dielectric with the quenching capacitor) in this study unlike the conventional dielectric barrier discharge it was devised. The atmospheric pressure glow plasma was generated, and the research-for the purpose of increase (conventional 5 times) of the input energy to the plasma, broadening the cross section and densifying of the atmospheric pressure plasma, elucidation of the discharge mechanism and clarification of the electrophysical property was carried out. As an industrial application, this plasma was used for the NOx removal, and technology improvement and practical application, application to the material surface treatment of the exhaust gas treatment by the plasma were examined. Until now result is described in the following.1)The increase of the input energy to the plasma : The input energy to the plasma increases, when the capacity of the quenching capacitor increases, and input ener … More gy is more largest than the dielectric barrier discharge, and it becomes 120 times.2)The discharge circuit design : L/R<τ<CR is a necessary condition in the circuit action, when the characteristic time of the glow-arc transition is τ, equivalent resistance of discharge circuit including the plasma is R, inductance is L, and capacitance of the quenching capacitor is C.3)Increase mechanism of the input energy : In the dielectric barrier discharge, it was verified experimentally that upper limit occurred in area effect of surface charge in energy growth.4)DC drive : The DC drive of CCMD was realized, and it succeededd in the control in the pulse interval.5)The elucidation of the discharge mechanism : The potential of the needle electrode fluctuated by the microdischarge of several decade ns, and it was verified experimentally that self quenching was realized by this potential fluctuation.6)The control of the input power to the plasma : The input energy is proportional to the ratio (especially, the integer part) of dielectric breakdown voltage, and capacity of the quenching capacitor and discharge frequency.7)The propagation velocity of the microdischarge : The propagation velocity of the microdischarge is approximately 3×10^5 m/s.8)The application to the ozone generation : Generation efficiency of the 41.5 g/kWh was obtained in the oxygen raw material, when it tried to carry out the ozone generation test by the parallel connection of 29 needle electrode. Less

在本研究中，新的系统CCMD（能力耦合的多排放：用淬火电容器代替饮食的电气排放类型）与已设计的常规异构屏障排放不同。产生了大气压力发光等离子体，并为血浆输入能量增加（常规5次）的研究目的是扩大横截面并致密大气压力等离子体，阐明排放机制以及对电物质物质的澄清。作为一种工业应用，该血浆用于去除NOX，并且对技术的改进和实际应用，对血浆对排气处理的材料表面处理进行了应用。到目前为止，在下文中描述了结果。1）在淬灭电容器的能力增加和输入能量的能力时，输入能量增加到血浆增加，输入能量……更高的GY比饮食障碍的放电更大，并且将变成120次，并且变为120倍。 equivalent resistance of discharge circuit including the plasma is R, inductance is L, and capacitance of the quenching capacitor is C.3) Increase mechanism of the input energy : In the dieelectric barrier Discharge, it was verified experimentally that upper limit occurred in area effect of surface charge in energy growth.4) DC drive: The DC drive of CCMD was realized, and it succeededd in the control in the pulse interval.5) The阐明排放机制：针电电极通过微电荷波动的电势波动，经过实验验证，这种潜在的波动可以实现自我淬灭。6）6）血浆输入能力的控制：输入能量的输入能量与该比率成比例（尤其是二号差异），并且是二号差异的部分，并且是二号差异的部分，并且是二号差异的分类。频率7）微型电气的传播速度：微型电气的传播速度约为3×10^5 m/s.8）在试图通过ozone生成测试的氧气生成测试时，将41.5 g/kWh的产生效率：41.5 g/kWh的产生效率。较少的