Effects of pulsed-excitation applied voltage rise time on argon metastable production efficiency in a high pressure dielectric barrier discharge

2007 ◽  
Vol 90 (24) ◽  
pp. 241501 ◽  
Author(s):  
Robert J. Leiweke ◽  
Biswa N. Ganguly
Keyword(s):  
High Pressure ◽  
Dielectric Barrier Discharge ◽  
Applied Voltage ◽  
Rise Time ◽  
Production Efficiency ◽  
Barrier Discharge ◽  
Dielectric Barrier ◽  
Voltage Rise ◽  
Pulsed Excitation

Duty Factor Effect on Ozone Production Using Dielectric Barrier Discharge Reactor Driven by IGBT Pulse Modulator

2007 ◽  
Vol 10 (2) ◽  
Author(s):  
T. Miura ◽  
T. Sato ◽  
K. Arima ◽  
S. Mukaigawa ◽  
K. Takaki ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Applied Voltage ◽  
Barrier Discharge ◽  
Pulse Voltage ◽  
Ozone Production ◽  
Duty Factor ◽  
Pure Oxygen ◽  
Dielectric Barrier ◽  
Pulse Modulator ◽  
Dbd Reactor

AbstractAn ozone production using pulse voltage driven dielectric barrier discharge (DBD) reactor was investigated experimentally to clarify an influence of a duty factor of applied pulse voltage on ozone yield. A square of 10 kV applied voltage was generated using a pulse modulator. Insulated gate bipolar transistor (IGBT) switches were employed to generate the square pulse with 1 kHz in pulse repetition rate. Duty factor of the pulse voltage was controlled in range from 10 to 80% by timing of a gate signal to the IGBT switches. The output voltages of the power supply were applied to a multipoint electrode type DBD reactor in order to operate at low applied voltage. The ozone yield was obtained to be around 100 g/kWh at several thousands ppm ozone production in pure oxygen circumstance at 5 L/min. gas flow. The ozone yield decreased with increasing ozone concentration and was almost independent of the duty factor of square applied voltage under the present experimental condition. Power loss consumed in the pulse modulator was successfully reduced by decreasing duty factor of the output voltage without decrease of the ozone production.

scholarly journals Study of Dielectric Barrier Discharge in Air and Estimation of Electron Density and Energy Deposition

2019 ◽  
Vol 7 ◽  
pp. 1-9 ◽  
Author(s):  
Bhesh Bahadur Thapa ◽  
Raju Bhai Tyata
Keyword(s):  
Dielectric Barrier Discharge ◽  
Electron Density ◽  
Applied Voltage ◽  
Atmospheric Pressure ◽  
Barrier Discharge ◽  
Plasma Reactor ◽  
Atmospheric Pressure Plasma ◽  
Half Cycle ◽  
Voltage Versus ◽  
Dielectric Barrier

This paper reports the electrical behaviors of atmospheric pressure plasma reactor with Dielectric Barrier Discharge (DBD) in air medium. The DBD discharge was generated in air at atmospheric pressure using Disc Electrode Geometry (DEG) reactor powered by ac voltage (0-7kV) at a frequency of 24kHz. The glass plates of thickness 1.0mm and 3.0mm were used as dielectric. The current-voltage characteristics were studied for two air gap of 2.0mm and 3.0mm by varying the applied voltages. The numbers of filamentary micro discharges were found as increased in each half cycle with increase in power. The observations of Lissajous figure of applied voltage versus electric current was used for measuring energy deposited by discharge and also compared with calculated value. Lissajous figures clearly show that the energy deposited by discharge was dependent on applied voltage. The electron density of discharge was measured by power balance method. Electron density was found in the order of 1017 per cubic meter.

Generation of high pressure homogeneous dielectric barrier discharge in air

2013 ◽  
Vol 61 (2) ◽  
pp. 24317 ◽  
Author(s):  
Naoki Osawa ◽  
Ami Takashi ◽  
Yoshio Yoshioka ◽  
Ryoichi Hanaoka
Keyword(s):  
High Pressure ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Dielectric Barrier
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