Hollow-cathode based electrical discharge in atmospheric pressure water vapor at wide range of temperature

被引：8

作者：

Koo, Il Gyo ^{[1
]}

Lee, Woong Moo

机构：

[1] Ajou Univ, Dept Chem, Suwon 443749, South Korea

[2] Ajou Univ, Div Energy Syst Res, Suwon 443749, South Korea

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 10A期

关键词：

micro hollow discharge; high pressure discharge; discharge in water vapor; atmospheric pressure discharge; micro hollow electrodes; plasma emission spectroscopy;

D O I：

10.1143/JJAP.45.7888

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Atmospheric pressure water vapor, in the temperature range from 150 to 700 degrees C, was used as the carrier gas for DC powered electrical discharge in hollow cathode configuration. The electrode assembly was constructed in usual hollow-cathode configuration by sandwiching a dielectric spacer, 200 mu m thick, with two thin metal sheets and boring a micro hole of 300 mu m diameter. The current-voltage profile of the discharge showed a positive differential resistivity characterizing an abnormal glow discharge. The power consumption for the water discharge at 700 degrees C was less than 50% the consumption at 150 degrees C. The reduction of the power for sustaining the discharge with increase of the gas temperature was partly explained by relating the ionic mobility and the distribution of ionic mean free path to the temperature.

引用

页码：7888 / 7893

页数：6

共 29 条

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