An experimental comparison between electrode shapes for NO<sub>x</sub> treatment using a dielectric barrier discharge
Muaffaq A Jani; K Toda; K Takaki; T Fujiwara; Muaffaq A Jani; Department of Electrical and Electronic Engineering, Iwate University, Ueda 4-3-5, Morioka, Iwate 020-8551, Japan; K Toda; Department of Electrical and Electronic Engineering, Iwate University, Ueda 4-3-5, Morioka, Iwate 020-8551, Japan; K Takaki; Department of Electrical and Electronic Engineering, Iwate University, Ueda 4-3-5, Morioka, Iwate 020-8551, Japan; T Fujiwara; Department of Electrical and Electronic Engineering, Iwate University, Ueda 4-3-5, Morioka, Iwate 020-8551, Japan
Журнал:
Journal of Physics D: Applied Physics
Дата:
2000-12-07
Аннотация:
An exhaust gas treatment using dielectric barrier discharges has been developed in order to increase the energy efficiency of NO removal. The effect of electrode shape on NO removal in a barrier discharge plasma was investigated experimentally. The electrode shapes (multi-point-to-plane and plane-to-plane) were compared to provide information on the performance of the gas treatment. The experimental result shows that the multi-point-to-plane electrode is more effective than the plane-to-plane one at low energy and low operating voltage. With a flow rate of 5 l min<sup>-1</sup>, the power requirement to remove 200 ppm NO is 24 W using the multi-point-to-plane electrodes, while it is 177 W using the plane-to-plane electrode. The average power requirement for NO<sub>x</sub> removal can be reduced to ~20% by using multi-point-to-plane electrodes.
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