Decrease in dinitrogen monoxide (N2O) generation of air-fed ozone generator using Atmospheric Pressure Townsend Discharge

2014 ◽  
Author(s):  
Takafumi Tsuji ◽  
Yuuki Morimoto ◽  
Daisuke Funaki ◽  
Naoki Osawa ◽  
Yoshio Yoshioka
Keyword(s):  
Atmospheric Pressure ◽  
Ozone Generator ◽  
Townsend Discharge ◽  
Dinitrogen Monoxide

Progresses of Fundamental Research and Application of Atmospheric Pressure Townsend Discharge

2014 ◽  
Vol 17 (2) ◽  
Author(s):  
Naoki Osawa ◽  
Yoshio Yoshioka
Keyword(s):  
Water Vapor ◽  
Nitrogen Oxides ◽  
Atmospheric Pressure ◽  
Decisive Factor ◽  
Ozone Generator ◽  
Considerable Time ◽  
Positive Ions ◽  
Barrier Surface ◽  
Fundamental Research ◽  
Townsend Discharge

AbstractIn this paper, we describe (1) the electrons attachment properties of alumina barriers which generate our Atmospheric Pressure Townsend Discharge (APTD), (2) unstable phenomena of our APTD, and (3) application to nitrogen oxides less (NOx-less) ozone generator. The important results that we have obtained are; (1) the alumina barrier which generates stable APTD in air can easily accumulate electrons on the barrier surface, and the accumulated electrons on the barrier surface remains there for a considerable time. (2) Regarding the instability of our APTD in humid air, the existence of water vapor is not a decisive factor, but the concentration of positive ions like H

Observation of the transition from a Townsend discharge to a glow discharge in helium at atmospheric pressure

2007 ◽  
Vol 91 (22) ◽  
pp. 221504 ◽  
Author(s):  
Haiyun Luo ◽  
Zhuo Liang ◽  
Bo Lv ◽  
Xinxin Wang ◽  
Zhicheng Guan ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Atmospheric Pressure ◽  
Townsend Discharge

scholarly journals Carbon Microstructures Synthesis in Low Temperature Plasma Generated by Microdischarges

2021 ◽  
Vol 11 (13) ◽  
pp. 5845
Author(s):  
Arkadiusz T. Sobczyk ◽  
Anatol Jaworek
Keyword(s):  
Low Temperature ◽  
Atmospheric Pressure ◽  
Supply Voltage ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Stainless Steel Needle ◽  
Carbon Structures ◽  
Carbon Nanowalls ◽  
Carbon Microfibers ◽  
Townsend Discharge

The aim of this paper is to investigate the process of growth of different carbon deposits in low-current electrical microdischarges in argon with an admixture of cyclohexane as the carbon feedstock. The method of synthesis of carbon structures is based on the decomposition of hydrocarbons in low-temperature plasma generated by an electrical discharge in gas at atmospheric pressure. The following various types of microdischarges generated at this pressure were tested for both polarities of supply voltage with regard to their applications to different carbon deposit synthesis: Townsend discharge, pre-breakdown streamers, breakdown streamers and glow discharge. In these investigations the discharge was generated between a stainless-steel needle and a plate made of a nickel alloy, by electrode distances varying between 1 and 15 mm. The effect of distance between the electrodes, discharge current and hydrocarbon concentration on the obtained carbon structures was investigated. Carbon nanowalls and carbon microfibers were obtained in these discharges.

scholarly journals Экспериментальные исследования таунсендовского разряда с многоострийным катодом на динамической платформе из магнитоуправляемых частиц Fe и Fe-Al

2021 ◽  
Vol 91 (8) ◽  
pp. 1276
Author(s):  
И.А. Шорсткий ◽  
N. Yakovlev
Keyword(s):  
Field Strength ◽  
Discharge Current ◽  
Atmospheric Pressure ◽  
Cathode Surface ◽  
Electrode Gap ◽  
Current Voltage ◽  
Average Electric Field ◽  
Current Voltage Characteristics ◽  
Townsend Discharge ◽  
Discharge Gap

Experimental results of the Townsend discharge in the air gap and atmospheric pressure from a multi-pin cathode based on a dynamic platform of magnetically controlled Fe and Fe-Al particles presented. Dynamic platform method formation from magnetically controlled particles for cathode surface presented. The current-voltage characteristics are obtained for various configurations of the cathode design (with a flat electrode without magnetically controlled particles, with a multi-pin cathode with magnetically controlled Fe or Fe-Al particles), as well as with the presence of a heated spiral in the electrode gap. The use of a multi-pin cathode based on the dynamic platform of magnetically controlled Fe and Fe-Al particles allows to maintain the average electric field strength in the discharge gap and to increase the spark discharge current.

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