CAJ | 학술논문

大气压低温放电等离子体在点火和辅助燃烧方面有着广泛的应用前景。为此，基于60kHz的高频高压电源，利用尖-尖电极的极不均匀场结构，在空气中获得了稳定的大气压辉光放电，通过测量电压电流并拍摄放电图像，分析了放电过程，并计算得到了电极压降和位移电流。间隙击穿前，间隙距离不变时位移电流随着施加电压而呈线性变化；问隙击穿后，电源输出电压不变时间隙放电电压随着间隙距离而呈线性变化。结果表明放电过程经历3种放电模式（电晕放电、火花放电、辉光放电），放电稳定性随着气体体积流量的增大而减小，在气体体积流量〈3L／min时，可以实现稳定辉光放电。相关结果可为等离子体点火和辅助燃烧提供参考。
대기압저온방전등리자체재점화화보조연소방면유착엄범적응용전경。위차，기우60kHz적고빈고압전원，이용첨-첨전겁적겁불균균장결구，재공기중획득료은정적대기압휘광방전，통과측량전압전류병박섭방전도상，분석료방전과정，병계산득도료전겁압강화위이전류。간극격천전，간극거리불변시위이전류수착시가전압이정선성변화；문극격천후，전원수출전압불변시간극방전전압수착간극거리이정선성변화。결과표명방전과정경력3충방전모식（전훈방전、화화방전、휘광방전），방전은정성수착기체체적류량적증대이감소，재기체체적류량〈3L／min시，가이실현은정휘광방전。상관결과가위등리자체점화화보조연소제공삼고。
Atmospheric-pressure non-thermal plasma has been widely used in plasma-induced ignition and plasma- assisted combustion. In this article, stable glow discharge excited by a high frequency and high voltage power supply is obtained with a pin-to-pin electrode geometry, and the discharge process is investigated by the measurement of voltage-current and the discharge images. Furthermore, the voltage drop at the electrodes and the displacement current is calculated. When the air gap is fixed, displacement current linearly changes with the applied voltage before breakdown. After breakdown takes place, the voltage across the gap changes linearly with the air gap when the output voltage of the generator is fixed. The experimental results show that corona spark, and g）ow discharge occurs in the development of the discharge process, respectively. The stability of the discharge decreases as the increase of the air flow, and the glow discharge can be kept when the air flow is below 3 L/rain. The experimental results can be referred in ignition and combustion.