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

K. Yan, T. Yamamoto, S. Kanazawa, T. Ohkubo, Y. Nomoto, J.-S. Chang
Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242)  

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In this paper, the effects of the applied voltage modes on the positive corona discharge morphology and NO removal characteristics from air stream are experimentally investigated. By using a dc superimposed high frequency ac power supply (10-60 kHz), a uniform streamer corona can be generated, which is also less sensitive to electrode mis-arrangements. Hermstein glow can be transferred to streamer corona if the peak-to-peak voltage is larger than 1.0 kV at the voltage change rate of 0.2 kV/ s.
more » ... significant amount of NO removal is observed under streamer corona. For the Hermstein glow, the removal is negligible. Moreover, the basic principle for designing ac/dc energized streamer corona is also presented in this paper. Index Terms-AC/DC superimposed operations, glow corona, NO removal, streamer corona.
doi:10.1109/ias.1998.729833 fatcat:pvuzshffc5crxdpowbpkhzag5i
Citation

K. Yan, T. Yamamoto, S. Kanazawa, T. Ohkubo, Y. Nomoto, J.-S. Chang. "NO removal characteristics of a corona radical shower system under DC and AC/DC superimposed operations." Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242)