Mathematical Analysis of O and OH Radicals Energized by Dielectric Barrier Discharge

Author

Yin, Shui-e ; Sun, Bao-Min ; Lee, Fei

Author_Institution

Educ. Minist. Key Lab. on Condition Monitoring & Control of Power Plant Equip., North China Electr. Power Univ., Beijing, China

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

Abstract

In this paper, a mathematical model was proposed to describe the behavior of OH and O radicals in the Dielectric Barrier Discharge (DBD) of NO/SO₂/O₂/H₂O/N₂ system with a cylindrical reactor, which energized by repetitive high voltage pulses at normal atmospheric pressure and room temperature. The generation and consumption of the radials were considered in the mathematical model by a single pulse or continuous pulses. Their concentrations were derived by considering the direct electron effect on the dissociation of gaseous molecules (O₂, N₂, H₂O) and the subsequent excitation transfer reaction of excited oxygen atoms to produce OH radicals. The proposed equations were solved numerically by Rosenbrock method in MATLAB.

Keywords

discharges (electric); dissociation; free radical reactions; numerical analysis; oxygen; oxygen compounds; plasma chemistry; reaction kinetics theory; MATLAB; NO-SO₂-O₂-H₂O-N₂; NO/SO₂/O₂/H₂O/N₂ system; O; O radicals; OH; OH radicals; Rosenbrock method; cylindrical reactor; dielectric barrier discharge; direct electron effect; excitation transfer reaction; excited oxygen atoms; gaseous molecule dissociation; mathematical model; pressure 1 atm; repetitive high voltage pulses; temperature 293 K to 298 K; Atomic measurements; Dielectrics; Electrons; Equations; Inductors; Mathematical analysis; Mathematical model; Pulse generation; Temperature; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4812-8

Electronic_ISBN

978-1-4244-4813-5

Type

conf

DOI

10.1109/APPEEC.2010.5449432

Filename

5449432