NO removal characteristics of a corona radical shower system under DC and AC/DC superimposed operations

Author

Yan, Keping ; Yamamoto, Takayuki ; Kanazawa, Seiji ; Ohkubo, Toshikazu ; Nomoto, Yukiharu ; Chang, Jen-Shih

Author_Institution

Dept. of Electr. & Electron. Eng., Oita Univ., Japan

Volume

3

fYear

1998

fDate

12-15 Oct. 1998

Firstpage

1841

Abstract

In this paper, the effects of operating applied voltage modes on the corona discharge morphology and NO removal characteristics from air stream are experimentally investigated. By applying a DC superimposed high frequency AC voltage, a uniform streamer corona can be generated, which is also less sensitive to electrodes mis-arrangements. Hermstein glow can be transferred to streamer by applying a DC superimposed AC power supply if the peak to peak voltage is larger than 1.0 kV at the voltage change rate of 0.2 kV//spl mu/s. A significant amount of NO removal is observed under streamer corona. While for Hermstein glow the removal is negligible.

Keywords

air pollution control; corona; electrodes; nitrogen compounds; AC/DC superimposed operations; DC operations; DC superimposed AC power supply; DC superimposed high frequency AC voltage; Hermstein glow; NO; NO removal characteristics; air stream; corona discharge morphology; corona radical shower system; electrodes mis-arrangements; uniform streamer corona; voltage change rate; Air pollution; Corona; Electrodes; Energy efficiency; Gases; Inductors; Morphology; Plasmas; Power supplies; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE

Conference_Location

St. Louis, MO, USA

ISSN

0197-2618

Print_ISBN

0-7803-4943-1

Type

conf

DOI

10.1109/IAS.1998.729833

Filename

729833