CAJ | 학술논문

采用平面激光诱导荧光（PLIF）、高温热电偶及红外气体分析仪,对不同当量比下的合成气在双旋流模型燃烧室内的火焰特征进行了试验研究.结果表明：当量比为0.2时,合成气火焰的反应区呈月牙形,随着当量比的增大,合成气火焰根部逐渐出现M型分布特征,火焰锋面的内、外侧张角均单调减小,火焰推举高度与穿透深度增大,同时,燃烧室中下游出现大量的反应区,火焰根部受到压缩,燃烧室排气温度升高,CO排放量迅速降低.
채용평면격광유도형광（PLIF）、고온열전우급홍외기체분석의,대불동당량비하적합성기재쌍선류모형연소실내적화염특정진행료시험연구.결과표명：당량비위0.2시,합성기화염적반응구정월아형,수착당량비적증대,합성기화염근부축점출현M형분포특정,화염봉면적내、외측장각균단조감소,화염추거고도여천투심도증대,동시,연소실중하유출현대량적반응구,화염근부수도압축,연소실배기온도승고,CO배방량신속강저.
An experimental study has been performed to investigate the syngas swirled burner at different equivalent ratios, using a planar laser induced flu flame structures of a dual orescence （PLIF） system, high-temperature thermocouples and an infrared gas analyzer. Results show that the syngas flame exhibits a crescent shape at a relatively low equivalent ratio of 0. 2; with the rise of equivalent ratio, the flame shows an M-shaped root, and its spray angle reduces at both inside and outside, while the lift-off height and penetration depth increase. Simultaneously, large areas of chemical reaction appear downstream of the combustor, with a compressed flame root, raised exhaust temperatures and a reduced CO emission.