Title: Influence of streamer-to-glow transition mode on the NO removal by an inductive energy storage type pulse power generator

Authors: Koichi Takaki, Kyosuke Kanesawa, Seiji Mukaigawa, Tamiya Fujiwara

Addresses: Department of Electrical and Electronic Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan. ' Department of Electrical and Electronic Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan. ' Department of Electrical and Electronic Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan. ' Department of Electrical and Electronic Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan

Abstract: Influence of streamer-to-glow transition on NO removal from a simulated diesel exhaust gas is described in this paper. A coaxial cylinder nonthermal plasma reactor was driven by an inductive energy storage pulse power generator employing a fast recovery diode as semiconductor opening switch. The NO removal increased with input energy into the reactor. The energy efficiency for 30% NO removal was obtained to 25 g/kWh and decreased to 5 g/kWh with increasing capacitance of the energy storage capacitor from several hundred pF to several nF. The efficiency was successfully improved from 5 to 20 g/kWh by improvement of the circuit.

Keywords: pulsed power generators; inductive energy storage; SOS; semiconductor opening switch; fast recovery diode; NOx; streamer discharge; glow discharge; diesel exhaust gas; nitrogen oxide removal; nonthermal plasma reactors.

DOI: 10.1504/IJEWM.2008.021779

International Journal of Environment and Waste Management, 2008 Vol.2 No.4/5, pp.336 - 348

Published online: 04 Dec 2008 *

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