Influence of electrode configuration on ozone synthesis and microdischarge property in dielectric barrier discharge reactor
Influence of electrode configuration on ozone synthesis and microdischarge property in dielectric barrier discharge reactor
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DOI：
10.1016/j.vacuum.2008.03.047
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发表时间：
2008-09-04
期刊：
影响因子：
4
通讯作者：
Fujiwara, Tamiya
中科院分区：
文献类型：
--
作者：
Takaki, Koichi;Hatanaka, Yuki;Fujiwara, Tamiya
通过实验研究了电介质阻挡放电的特性，以阐明电极配置对臭氧合成和微放电行为的影响。采用三种不同的结构：平面、沟槽和多点作为接地电极。使用氧化铝电介质阻挡涂层平面电极作为高压电极，向其施加频率为10kHz的正弦高压。将纯氧气以5L/min的气体流速送入反应器中。通过将电极配置从平面更改为多点（在 6 cm x 22 cm 平面电极上有 528 个直角锥体形状投影），最大产率从 80 g/kWh 提高到 120 g/kWh。产率强烈依赖于平面电极壳中产生的臭氧浓度，而轻微依赖于多点电极壳中的浓度。电极配置还影响每个施加电压周期的微放电数量。多点电极在相同输入能量下显示出最多数量的微放电。 (C) 2008 Elsevier Ltd. 保留所有权利。
Characteristics of a dielectric barrier discharge were investigated experimentally to clarify an influence of an electrode configuration on ozone synthesis and a microdischarge behavior. Three difference configurations: plane, trench and multipoint were employed as ground electrode. The alumina dielectric barrier coated plane electrode was used as a high-voltage electrode, to which a sinusoidal high-voltage was applied with 10 kHz frequency. Pure oxygen gas was fed into the reactor with gas flow rate of 5 L/min. The maximum yielding rate increased from 80 to 120 g/kWh by changing an electrode configuration from plane to multipoint, which has 528 number of a right-pyramid shape projection on a 6 cm x 22 cm plane electrode. The yielding rate was strongly dependent on a produced ozone concentration in the plane electrode case, whereas slightly depended on the concentration in the multipoint electrode case. The electrode configuration also affected a number of the microdischarges per one applied voltage cycle. The multipoint electrode showed the largest number of microdischarges at same input energy. (C) 2008 Elsevier Ltd. All rights reserved.