摘要
滴谱特征会对燃气轮机环形燃烧室的燃烧性能造成重要影响。通过数值模拟,研究了不同初始平均粒径及喷雾半角下形成的不同滴谱特征对燃烧室燃烧效率、火焰长度、燃料驻留时间等性能参数的影响规律。结果表明:燃烧效率随初始平均粒径的减小先增大后减小,随喷雾半角的增大逐渐增加。火焰长度和燃料驻留时间随初始平均粒径的增大而增大,随喷雾半角的增大而减小。
Droplet characteristic plays an important role on the combustion performance of annular combustor. Numerical simulation method was used to investigate the relationship between average diameter of droplet, cone angle and combustion efficiency, length of flame, droplet life. The results show that： combustion efficiency increases firstly then decreases when average diameter of droplet decreases, and the cone angle has the same trend. Length of flame and droplet life increases when average diameter of droplet increases, and the cone angle has the opposite trend.
出处
《热科学与技术》
CAS
CSCD
北大核心
2013年第4期342-348,共7页
Journal of Thermal Science and Technology
基金
中央高校基本科研业务费专项资金资助项目(HEUCF120303)
关键词
滴谱特征
环形燃烧室
燃烧性能
droplet characteristic
annular combustor
combustion performance
