【摘要】 用针—板电极实验研究了影响脉冲放电等离子体去除NO2效率的主要因素:正脉冲电压的去除效率远高 于负脉冲;脉冲峰值电压越高效率越高;随着NO2初始质量浓度的增加,去除效率呈现为先增后减的非单调曲线。 还首次研究了磁场对NO2去除效率的影响及其规律,实验表明磁场能有效提高NO2的去除效率。更多还原

【Abstract】 NO 2 in the air can directly hazard people’s health and form acid rain. In order to resolve this problem, non-thermal plasma technology is used to remove NO 2 from the air. The factors that affect the removal efficiency, such as the magnitude and the polarity of the pulsed voltage, the initial concentration of NO 2 , are experimentally investigated. The removal efficiency of positive pulse voltage is far higher than that of negative pulse voltage while other factors are same; the higher the peak-voltage is the higher removal efficiency will be with the increasing initial concentration of NO 2 the removal efficiency will change as a non-monotonic curve which increases first and then decreases. It is novel that the magnetic field is applied to decompose NO 2 from domestic air in this paper, and it can be concluded experimentally that the removal efficiency is improved significantly by applying magnetic field.更多还原