摘要
模拟了氢气-空气预混合燃烧及NOx的生成特性。通过完全预混合、预混合调整N2比例、浓淡燃烧等方法分别进行了数值模拟,结果表明:由于温度和氧气浓度是影响热力型NOx生成的主要因素,组织浓淡燃烧和增加N2比例能够达到降低热力型NOx生成的良好效果,并且组织浓淡燃烧,在￠r=1～2之间存在一个最优值。另外,比较了氢气浓淡燃烧模拟与学者进行的相关试验。
Characteristics of NOx formation in pre-mixed combustion of hydrogen is simulated. Through the whole pre-mixed, adapting the ratio of N2, rich-lean combustion and so on, the result is that increasing the ratio of N2 and rich-lean combustion can successfully reduce the thermal NOx emission compared to the whole pre-mixed combustion, because of the major effect factors temperature and density of [O2], and there is a optional ￠ r between 1 and 2 in rich-lean combustion. Meanwhile, comparing to the related experiment.
出处
《电站系统工程》
北大核心
2006年第5期15-17,共3页
Power System Engineering
