摘要
针对最优结构的甲醇混合燃料引射式燃烧器，完成了大范围负荷变动下自适应配风特性实验研究，获得了燃烧器的实际配风特性及燃烧特性，并验证了数值研究结果。结果表明：最佳结构的甲醇混合燃料引射式燃烧器可实现大范围负荷变动下燃烧器的自适应配风，且燃烧稳定。当燃烧器负荷从25％-120％变化时，摩尔引射系数随着燃烧器的负荷增加而少量减小，引射系数变化率为6．3％，燃烧效率能保持在99．2％以上。当燃烧器负荷小于40％时，燃烧温度随着燃烧器的负荷增加而增加，当负荷大于40％时，燃烧火焰温度基本稳定在1650K。
Based on the optimum structure ejector burner with methanol-mixed fuel, the adaptive air distribution characteristics were studied with the large load variation range, also the actual air distribution and combustion characteristics were obtained, and the simulation results were verified. The results show that the optimum structure ejector burner can realize adaptive air distribution in the large load variation range, and combustion is stable. When the burner load changes from 25% to 120%, the mole air/fuel ratio （MAR） have little decrease, the change ratio of MAR is less than 6.3%, and the combustion efficiency is more than 99 temperature has some raise with the burner load combustion temperature is stable at 1650 K. 2%. When the load is less than 40%, combustion increasing. When the load is more than 40%,
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2014年第3期581-585,共5页
Journal of Engineering Thermophysics
基金
重庆市自然科学基金重点项目(No.cstc2013jjB90003)
重庆市集成示范计划项目(No.cstc2013jcsf90001)
关键词
甲醇混合燃料
引射式燃烧器
自适应配风
引射系数
燃烧效率
methanol-mixed fuel
ejector burner
adaptive air distribution
mole air/fllel ratio
com-bustion efficiency
