摘要
本文针对滑动弧等离子体辅助下的甲烷/氨气/空气预混旋流火焰,研究了其燃烧稳定性以及NO_(x)排放特性。研究结果表明,滑动弧不仅能够大幅拓展甲烷/氨气/空气预混旋流火焰的贫燃吹熄极限(在开放空间和受限空间中,贫燃吹熄极限分别从0.60~0.80拓宽到0.30),同时能够降低NO_(x)排放量。随后,通过NH_(2)^(*)化学自发光的光学测量,分析了滑动弧等离子体降低NO_(x)排放的可能机理。
In this paper, the flame stabilization and NO_(x)xemissions of CH_(4)/NH_(3)/air premixed swirl flame assisted by the gliding arc plasma are studied. The results show that the gliding arc can not only greatly expand the lean blowout limits of CH_(4)/NH_(3)/air premixed swirl flame(in the unconfined and the confined cases, the lean blowout limit are extended from 0.60~0.80 to 0.30, respectively), but also reduce NO_(x)emissions. Subsequently, the possible mechanism of gliding arc plasma to reduce NO_(x)emissions was analyzed through the optical measurement of NH_(2)^(*)chemiluminescence.
作者
孙锦国
黄骞
张易阳
杨远平
李水清
SUN Jinguo;HUANG Qian;ZHANG Yiyang;YANG Yuanping;LI Shuiqing(Key Laboratory for Thermal Science and Power Enginering of Ministryr of Education,Tsinghua University,Beijing 100084,China;Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China)
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2022年第8期2234-2241,共8页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.51725601,No.52006121)。
