Characteristics of Ozone Generation using a Micro Hollow Cathode Discharge
Characteristics of Ozone Generation using a Micro Hollow Cathode Discharge
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利用微型空心阴极放电产生臭氧的特性
DOI：
10.1541/ieejfms.123.364
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
S. Ishii
中科院分区：
文献类型：
--
作者：
Yasunobu Endo;K. Yasuoka;S. Ishii
研制了一种新型微型空心阴极放电臭氧发生器，并对其工作特性进行了评价。电极系统由两个薄金属阴极和一个中心孔直径为100微米的陶瓷间隔片组成。通过中心孔加注高压氧气，使氧气在放电空间内的停留时间减少到微秒级。在没有任何冷却系统的情况下，臭氧浓度为7.6 g/Nm 3时，臭氧生成效率可提高至45 g/kWh。在该臭氧生成系统中，通过减少气体停留时间，有效地消除了电子冲击和氧气热升等臭氧分解机制。
A new type of ozone generator using a micro hollow cathode discharge has been developed and evaluated on its operating characteristics. The electrode system consists of two thin metal cathodes and a ceramic spacer with a center hole of a few 100 µ m diameter. By feeding high- pressure oxygen gas through the center hole, the residence time of the oxygen gas within the discharge space decreases to the order of micro second. The ozone generation efficiency increases up to 45 g/kWh at the ozone concentration of 7.6 g/Nm 3 without any cooling systems. In this ozone generating system, the ozone decomposition mechanisms such as electron impacts and the heat rise of oxygen gas are effectively removed by decreasing the gas-residence time.