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高压电器  2015 

空气介质阻挡放电固氮的研究

, PP. 81-85

Keywords: 介质阻挡,固氮,正交实验,硝酸根

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Abstract:

常温常压下利用介质阻挡对空气放电产生低温等离子体(non-thermalplasma,NTP),其中氮气(N2)与氧气(O2)化合为氮氧化物(NOx),用水或其他溶液吸收变为硝酸盐,可为促进作物生长所用,且有利于实现低碳环保的生态农业。文中设计了放电固氮实验系统,采用物理实验手段,并辅以理论分析和计算,研究了放电电压、放电频率及放电时间3个影响因素对放电产物浓度的影响。以硝酸根离子质量浓度为试验指标,进行了正交试验设计,并对试验结果进行单因素影响规律的分析、极差分析。研究表明硝酸根离子质量浓度随着放电时间增加而明显增加,随放电电压变化也有明显的增减趋势,随频率变化没有明显的增减趋势。

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