Study on Ignition Characteristics of Coaxial Graded Low-emission Combustion Chamber of Natural Gas

被引：0
|
作者：
Ding, Wenhao [1 ]
Ran, Junhui [2 ]
Liu, Shizheng [2 ]
Xiang, Peng [1 ]
Liu, Xiao [1 ]
机构：
[1] Harbin Engineering University, Harbin,150001, China
[2] 703 Research Institute of China Shipbuilding Corporation Limited, Harbin,150078, China
来源：
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2024年 / 45卷 / 04期
关键词：
Combustion chambers - Gas turbines - Ignition - Numerical methods;
D O I：
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中图分类号：
学科分类号：
摘要：
Aiming at the ignition characteristics of different factors under the ignition condition of a coaxial staged combustor, the numerical simulation method is used to study the influence of different ignition positions, hot jet velocity, hot jet duration and other factors on the ignition performance under the ignition condition. The best ignition scheme under the ignition condition is determined and the ignition process is simulated. It is found that when the ignition position is close to the outlet of the combustion chamber, it has better ignition performance, but the development speed of the fire core is slow. The higher the velocity of the hot jet flame, the smaller the influence of the axial velocity of the flow field, the better the ignition performance. The increase of the duration of the hot jet makes the volume of the fire core generated on the wall increase, and the ignition success rate increases. © 2024 Science Press. All rights reserved.
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页码：1197 / 1204
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