Title :
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
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;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.729833
