SF6/N2 혼합기체의 DC 플라즈마 특성 분석 (The Analysis of DC Plasmas Characteristics on SF6 and N2 Mixture Gases)

서지정보

· 발행기관 : 대한전기학회
· 수록지 정보 : 전기학회논문지 / 63권 / 10호 / 1485 ~ 1490페이지
· 저자명 : 소순열

초록

SF6 gas has been used for power transformers or gas insulated switchgears, because it has the superiorinsulation property and the stable structure chemically. It has been, however, one of global warming gases and requiredto reduce the its amount. Some papers have reported that its amount could be reduced by mixing with other gases, suchas N2, CF4, CO2 and C4F8 and their mixture gases would cause the synergy effect.
In this paper, we investigated the characteristics of DC plasmas on SF6 mixture gases with N2 at atmosphericpressure. N2 gas is one of cheap gases and has been reported to show the synergy effect with mixing SF6 gas, eventhough N2 plasmas have electron-positive characteristics. 38 kinds of SF6/N2 plasma particles, which consisted of anelectron, two positive ions, five negative ions, 30 excitation and vibration particles, were considered in a one dimensionalfluid simulation model with capacitively coupled plasma chamber.
The results showed that the joule heating of SF6/N2 plasmas was mainly caused by positive ions, on the other handelectrons acted on holding the SF6/N2 plasmas stably. The joule heating was strongly generated near the electrodes,which caused the increase of neutral gas temperature within the chamber. The more N2 mixed-ratio increased, the lessjoule heating was. And the power consumptions by electron and positive ions increased with the increase of N2mixed-ratio.

영어초록

SF6 gas has been used for power transformers or gas insulated switchgears, because it has the superiorinsulation property and the stable structure chemically. It has been, however, one of global warming gases and requiredto reduce the its amount. Some papers have reported that its amount could be reduced by mixing with other gases, suchas N2, CF4, CO2 and C4F8 and their mixture gases would cause the synergy effect.
In this paper, we investigated the characteristics of DC plasmas on SF6 mixture gases with N2 at atmosphericpressure. N2 gas is one of cheap gases and has been reported to show the synergy effect with mixing SF6 gas, eventhough N2 plasmas have electron-positive characteristics. 38 kinds of SF6/N2 plasma particles, which consisted of anelectron, two positive ions, five negative ions, 30 excitation and vibration particles, were considered in a one dimensionalfluid simulation model with capacitively coupled plasma chamber.
The results showed that the joule heating of SF6/N2 plasmas was mainly caused by positive ions, on the other handelectrons acted on holding the SF6/N2 plasmas stably. The joule heating was strongly generated near the electrodes,which caused the increase of neutral gas temperature within the chamber. The more N2 mixed-ratio increased, the lessjoule heating was. And the power consumptions by electron and positive ions increased with the increase of N2mixed-ratio.

참고자료

· 없음