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논문 기본 정보

자료유형
학술저널
저자정보
Muhammad Waqar Ahmed (Jeju National University) Md. Shahinur Rahman (Jeju National University) Sooseok Choi (Jeju National University) Ulugbek Shaislamov (Jeju National University) Jong-Keun Yang (Jeju National University) Rai Suresh (Jeju National University) Heon-Ju Lee (Jeju National University)
저널정보
한국진공학회(ASCT) Applied Science and Convergence Technology Applied Science and Convergence Technology Vol.26 No.5
발행연도
2017.9
수록면
118 - 128 (11page)

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초록· 키워드

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The scope of this work is to determine and compare the effect of electron temperature (Te) and number density (Ne) on the yield rate and concentration of reactive chemical species (<SUP>•</SUP>OH, H<SUB>2</SUB>O<SUB>2</SUB> and O<SUB>3</SUB>) in an argon, air and oxygen injected negative DC (0-4 kV) capillary discharge with water flow(0.1 L/min). The discharge was created between tungsten pin-to pin electrodes (Φ = 0.5 mm) separated by a variable distance (1-2 mm) in a quartz capillary tube (2 mm inner diameter, 4 mm outer diameter), with various gas injection rates (100-800 sccm). Optical emission spectroscopy (OES) of the hydrogen Balmer lines was carried out to investigate the line shapes and intensities as functions of the discharge parameters such as the type of gas, gas injection rate and inter electrode gap distances. The intensity ratio method was used to calculate T<SUB>e</SUB> and Stark broadening of Balmer β lines was adopted to determine N<SUB>e</SUB>. The effects of T<SUB>e</SUB> and N<SUB>e</SUB> on the reactive chemical species formation were evaluated and presented. The enhancement in yield rate of reactive chemical species was revealed at the higher electron temperature, higher gas injection rates, higher discharge power and larger inter-electrode gap. The discharge with oxygen injection was the most effective one for increasing the reactive chemical species concentration. The formation of reactive chemical species was shown more directly related to T<SUB>e</SUB> than N<SUB>e</SUB> in a flowing water gas injected negative DC capillary discharge.

목차

Abstract
I. Introduction
II. Materials and Methods
III. Results and Discussion
Conclusions
References

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