利用一个空间零维大气等离子体模型对其中的氮氧化物在不同电离度情况下的变化规律进行了数值模拟,得到了放电后不同初始电子密度下的氮氧化物(包括NO,NO+,NO2,NO2+,N2O,N2O+,NO3和N2O5)及影响其产消的主要反应物N和O3的密度随时间的演化规律.结果表明,电子初始密度ne0=109cm-3时,NO和NO2的去除率较高,氮氧化物总密度较小,最适合消除氮氧化物污染.同时,还对N和O3随电离度变化的行为进行了分析.
A zero-dimensional model is used for studying the behaviors of NOx in atmosphere plasmas with different ionization degrees.The temporal evolutions of NOx (including NO,NO+,NO2,NO+2,N2O,N2O+,NO3 and N2O5),N and O3,the main important reactants which influence the producing and the consuming of NOx,are obtained in different initial densities for afterglow plasmas.The results show that the removal rates of NO and NO2 are higher when ne0=109 cm-3,and the total nitrogen oxide density is lower,so it is suited for the removal of the pollution of NOx.Some important reactants such as N and O3 varying with the increase of ionization degree are also analyzed.