CAJ | 학술논문

为探讨低温放电等离子体特性，研究高压脉冲放电过程中的气体温度，采用喷嘴-筒式放电极结构分析OH自由基在高压负脉冲放电过程中的发射光谱，并利用LIFBASE估算OH自由基的转动温度．通过模拟，得到放电脉冲频率和喷嘴直径的变化对OH自由基的转动温度的影响：OH自由基的转动温度随高压脉冲频率的升高或放电喷嘴直径的增大而降低；当脉冲峰值电压为－32 kV，放电喷嘴外直径为3 mm时，改变脉冲频率，OH自由基转动温度变化范围为200～500 K；当脉冲峰值电压为－30 kV，脉冲频率为50 Hz时，改变喷嘴直径，OH自由基转动温度变化范围为400～600 K．
위탐토저온방전등리자체특성，연구고압맥충방전과정중적기체온도，채용분취-통식방전겁결구분석OH자유기재고압부맥충방전과정중적발사광보，병이용LIFBASE고산OH자유기적전동온도．통과모의，득도방전맥충빈솔화분취직경적변화대OH자유기적전동온도적영향：OH자유기적전동온도수고압맥충빈솔적승고혹방전분취직경적증대이강저；당맥충봉치전압위－32 kV，방전분취외직경위3 mm시，개변맥충빈솔，OH자유기전동온도변화범위위200～500 K；당맥충봉치전압위－30 kV，맥충빈솔위50 Hz시，개변분취직경，OH자유기전동온도변화범위위400～600 K．
To investigate the characteristics of the low-temperature discharge plasma and study the gas temperature of the high-voltage pulse discharge process,a nozzle-cylinder discharge electrode structure is used to analyze the OH radical’s emission spectrum in the high-voltage negative-pulse discharge process, while the OH radical rotational temperature is calculated by LIFBASE. The influence of changing the dis-charge pulse frequency and the nozzle diameter on the OH radical rotational temperature is obtained through simulation as follows. The OH radical rotational temperature reduces with the increase of the high-voltage pulse frequency or the nozzle diameter;when the pulse peak voltage is -32 kV and the outside di-ameter of the discharge nozzle is 3 mm,the OH radical rotational temperature range is 200~500 K with the change of the pulse frequency;when the pulse peak voltage is -30 kV and the pulse frequency is 50 Hz, the OH radical rotational temperature range is 400~600 K with the change of the nozzle diameter.