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Contrasting Behaviours of AC and DC Excited Plasmas in Contact with Liquid 被引量:1

Contrasting Behaviours of AC and DC Excited Plasmas in Contact with Liquid
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摘要 A comparative study of the needle-to-liquid plasma in the continuous mode with DC and AC excitations is detailed in this paper. All plasmas studied here are shown to be glow discharges. This study is based on measurements of several key parameters, including electrical energy, optical emission intensities of active species, rotational and vibrational temperatures, and temperatures of the needle and liquid electrodes. AC plasmas can produce 1.2~5 times higher excited state active species than DC plasmas under the same dissipated power. AC excited liquid plasmas have the highest energy utilization efficiency among the three systems (AC excited plasmas, DC excited plasmas with water anode and DC excited plasmas with water cathode); most of the energy is used to produce useful species rather than to heat the electrodes and plasmas. A comparative study of the needle-to-liquid plasma in the continuous mode with DC and AC excitations is detailed in this paper. All plasmas studied here are shown to be glow discharges. This study is based on measurements of several key parameters, including electrical energy, optical emission intensities of active species, rotational and vibrational temperatures, and temperatures of the needle and liquid electrodes. AC plasmas can produce 1.2~5 times higher excited state active species than DC plasmas under the same dissipated power. AC excited liquid plasmas have the highest energy utilization efficiency among the three systems (AC excited plasmas, DC excited plasmas with water anode and DC excited plasmas with water cathode); most of the energy is used to produce useful species rather than to heat the electrodes and plasmas.
作者 柳晶晶 胡晓
出处 《Plasma Science and Technology》 SCIE EI CAS CSCD 2013年第8期768-775,共8页 等离子体科学和技术(英文版)
基金 supported by National Natural Science Foundation of China(No.51207027) Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry of China
关键词 electrical energy active species rotational temperature vibrational temperature energy use efficiency electrical energy active species rotational temperature vibrational temperature energy use efficiency
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