Gas temperature measurement in a dielectric barrier discharge by argon atomic spectral line

2008 ◽  
Author(s):  
Lifang Dong ◽  
Yuyan Qi ◽  
Zengchao Zhao
Keyword(s):  
Spectral Line ◽  
Temperature Measurement ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Gas Temperature ◽  
Dielectric Barrier

Study in Space and Time of the Gas Temperature Variations in Dielectric Barrier Discharge Reactors

2005 ◽  
Vol 8 (2) ◽  
Author(s):  
E. Odic ◽  
M. Dhainaut ◽  
A. Goldman ◽  
M. Goldman ◽  
Ph. Dessante
Keyword(s):  
Dielectric Barrier Discharge ◽  
Atmospheric Pressure ◽  
Discharge Channel ◽  
Barrier Discharge ◽  
Acoustic Method ◽  
High Energy ◽  
Gas Temperature ◽  
Dielectric Barrier ◽  
Voltage Frequency ◽  
Kinetic Calculations

AbstractGas temperature evolution is investigated in the corona gap of a steady state dielectric barrier discharge under conditions optimal for many chemical applications, i.e. with relatively high energy injection. Under these conditions, quite high temperatures may be reached and these temperatures may be favorable or not for specific applications. Emission spectroscopy measurements have been used and an acoustic method developed, to thermally characterize the discharge channel. The discharge is produced in air at atmospheric pressure, and ozone used as a thermal indicator. Through experimental results supported by kinetic calculations, it is shown that, depending upon the applied voltage frequency, ozone formation can, at least partially, take place not in the discharge channel itself, but in its immediate vicinity.

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