Chemi-luminescence Measurement and Exact Dynamic Mode Decomposition for Combustion-Instability Analysis in a Gas Turbine Combustor

被引:0
作者
Seong, Ji Hwan [1 ]
Wang, Yuangang [1 ]
Park, Soon Been [1 ]
Hwang, Jeongjae [2 ]
Lee, Won June [2 ]
Sohn, Chae Hoon [1 ]
机构
[1] Sejong Univ, Dept Mech Engn, Seoul, Seoul, South Korea
[2] Korea Inst Machinery & Mat, Dept Carbon free Power Generat, GT Res Team, Daejeon, South Korea
关键词
Exact dynamic mode decomposition; Fast Fourier transform; Growth rate; Mode shape; Combustion instability;
D O I
10.15231/jksc.2024.29.3.053
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
To analyze combustion instability in the combustor of a gas turbine, the results of chemi-luminescence measurement are applied for the exact dynamic mode decomposition (EDMD) as hydrogen blending ratio, pilot split ratio, and operating pressure. The resonant frequencies obtained using fast Fourier transform (FFT) and EDMD are compared to confirm the growth rate and mode shape. The effect of hydrogen blending ratio, pilot split ratio, and pressure on the combustion instability was confirmed by comparing these results and used for analysis of combustion instability.
引用
收藏
页码:53 / 61
页数:9
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