Investigation on a Novel Type of Tubular Flame Burner with Multi-stage Partially-Premixing Features for Liquid-Fueled Gas Turbine
Investigation on a Novel Type of Tubular Flame Burner with Multi-stage Partially-Premixing Features for Liquid-Fueled Gas Turbine
复制标题
新型液体燃气轮机多级部分预混管式火焰燃烧器的研究
DOI：
10.1080/00102202.2019.1651298
复制
发表时间：
2021-01
影响因子：
1.9
通讯作者：
Zhao Daiqing
中科院分区：
文献类型：
--
作者：
Feng Yiran;Qi Wenyuan;Baghaei Mohammad Hassan;Yuyin Zhang;Zhao Daiqing
摘要：为了满足人们对燃气轮机燃料灵活性和火焰稳定性日益增长的关注，开发了一种由蒸发器和具有多级入口的管式火焰燃烧器组成的新型燃烧系统。在蒸发器中，采用闪蒸雾化技术来增强雾化、蒸发和燃料与空气的混合，为燃烧器提供在液体燃料的各种工况下优化的富燃料混合物。在新型管式火焰燃烧器中，提出了切向多级入口结构，以实现燃料/空气的快速混合，从而实现燃烧清晰，具有稳定性好、温度分布均匀、无回火的特点。作为实践，选择乙醇作为液体燃料来检查蒸发器和多级管式火焰燃烧器的性能。结果表明，采用闪蒸技术，乙醇喷雾在较宽的负荷范围内都能充分蒸发，并能稳定建立管式火焰，无回火，特别是在0.23~4.6的宽当量比范围内，较传统的管式火焰燃烧器有了很大的扩展。燃烧器出口附近的温度在燃烧器中心区域的径向方向上均匀分布，但当接近燃烧器气缸壁时变得非常低，这被认为有助于减少燃烧器衬里的热损失，从而防止其烧蚀。这些结果表明这种新型燃烧器在先进燃气轮机中具有巨大的应用潜力。
ABSTRACT A new combustion system, which consists of an evaporator and a tubular flame burner with multi-stage inlets, has been developed to meet the growing concerns over the fuel flexibility and flame stability of gas turbines. In the evaporator, a flash-boiling atomization technology was adopted to enhance atomization, evaporation, and fuel-air mixing to provide the burner with the optimized fuel-rich mixture under various operating conditions with liquid fuels. In the new-type of tubular flame burner, a tangential multi-stage inlet structures were proposed to realize fast fuel/air mixing and thus clear combustion with features of excellent stability, uniform temperature profile, and non-flashback. As a practice, ethanol was selected as the liquid fuel to examine the performances of the evaporator and the multi-stage tubular flame burner. Results show that ethanol spray has been fully evaporated under a wide load range owing to the flash-boiling technology, and tubular flames can be established stably and without flashback, and specifically in a wide range of equivalence ratio from 0.23 to 4.6, which has been greatly expanded compared to those of the conventional tubular flame burners. The temperature near the burner outlet were found uniformly distributed in the radial direction across the burner central area, but became very low when approaching the burner cylinder wall, which is believed helpful for decreasing the heat loss to the burner liner and thus preventing it from ablation. These results imply that this new burner has great potentials in application to the advanced gas turbine.
登录
查看更多内容
管状预混火焰和扩散火焰：拉伸和曲率的影响
影响因子：
29.5
作者：
Pitz, Robert W.;Hu, Shengteng;Wang, Peiyong
通讯作者：
Wang, Peiyong
影响因子：
1.9
作者：
S. Ren;Haolin Yang;Liqiao Jiang;Daiqing Zhao;Xiaohan Wang
通讯作者：
S. Ren;Haolin Yang;Liqiao Jiang;Daiqing Zhao;Xiaohan Wang
DOI：
10.1016/j.proci.2006.08.030
发表时间：
2007
期刊：
--
影响因子：
--
作者：
T. Pham;D. Dunn-Rankin;W. Sirignano
通讯作者：
T. Pham;D. Dunn-Rankin;W. Sirignano
影响因子：
1.2
作者：
A. Lefebvre
通讯作者：
A. Lefebvre
影响因子：
4.4
作者：
D. Shimokuri;Yousuke Shiraga;K. Ishii;H. Toh;S. Ishizuka
通讯作者：
D. Shimokuri;Yousuke Shiraga;K. Ishii;H. Toh;S. Ishizuka