Title :
Distribution of OH within silent discharge plasma reactors
Author :
Coogan, J.J. ; Sappey, A.D.
Author_Institution :
Div. of Chem. Sci. & Technol., Los Alamos Nat. Lab., NM, USA
fDate :
2/1/1996 12:00:00 AM
Abstract :
Barrier discharges in humid air generate large quantities of OH and are well suited for the treatment of gas-based pollutants. In order to understand and optimize the formation and utilization of OH, we have imaged the spatial and temporal distribution of the OH radical with resolution of 40 μm and 100 ns. Using a flowing mix of Ar/O2 /H2O (78.5/20/1.5), we have found that OH exists only within the 85-μm radius channel formed by the transient microdischarge. At modest power densities of 0.1 W/cm2, over l06/cm2/s of these small filaments quickly fill the entire reactor volume
Keywords :
air pollution control; discharges (electric); plasma applications; plasma devices; plasma diagnostics; OH distribution; barrier discharges; gas-based pollutants treatment; humid air; microdischarge; silent discharge plasma reactors; spatial distribution; temporal distribution; Air pollution; Argon; Charge coupled devices; Chemical technology; Dielectrics; Electrodes; Electrons; Inductors; Optical filters; Plasmas;
Journal_Title :
Plasma Science, IEEE Transactions on
