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2019 Vol.24, Issue 1 Preview Page

Research Article

Combustion Instability Analysis of a Model Gas Turbine by Application of Dynamic Mode Decomposition

DMD기법을 이용한 모형 가스터빈의 연소불안정성 분석

Yuangang Wang1
,
Jinwoo Son1
,
Chae Hoon Sohn1*
,
Jisu Yoon2
,
Jinhyun Bae2
,
Youngbin Yoon2
왕 위엔강1
,
손 진우1
,
손 채훈1*
,
윤 지수2
,
배 진현2
,
윤 영빈2
1Department of Mechanical Engineering, Sejong University
2School of Mechanical and Aerospace Engineering, Seoul National University
1세종대학교 기계공학과
2서울대학교 기계항공공학부
* Corresponding Author
30 March 2019. pp. 51-56
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Abstract

Dynamic mode decomposition (DMD) technique is applied to analyze combustion instabilities in a model gas turbine combustor. The flame transfer function (FTF) obtained by the DMD method agrees with the experimental results qualitatively. However, FTF results show that the perturbation frequency with the largest gain is 100Hz, which contradicts the 1000Hz with the largest amplitude in the fast Fourier transform (FFT) results. In order to figure out this, gains and damping coefficients of all resonance frequencies are calculated by DMD technique. Results show the possibility that the model combustor has high-frequency instabilities as a results of coupling between flame and chamber responses. Another finding is that to obtain a pure FTF, the combustor must be removed to exclude coupling of chamber response with flame response.

Keywords
Gas turbine
Combustion instability
Dynamic mode decomposition
Transfer function
References
1
C.L. Timothy, Investigation of Combustion Instability Mechanisms in Premixed Gas Turbines, Ph.D. thesis, Georgia Institute of Technology, Atlanta, 1999, 1-52.
2
J.S. Yoon, M.K. Kim, M.C. Lee, Y.B Yoon, Combustion Instability Flame Structure Characteristics in Model Gas Turbine using the Chemiluminescence Measurement, The 43th KOSCO Symposium, 2011, 159-163.
3
D.S Kim, Introduction to Thermoacoustic Models for Combustion Instability Prediction using Flame Transfer Function, J. Korean. Soc. Propul. Eng., 15(6) (2011) 98-106.
4
T. Poinsot, Prediction and Control of Combustion Instabilities in Real Engines, Proceedings of the Combustion Institute, 36, 2017, 1-28.
10.1016/j.proci.2016.05.007
5
B.D. Bellows, Y. Neumeier, T. Lieuwen, Forced Response of a Swirling Premixed Flame to Flow Disturbances, J. Propul. Power, 22 (2006) 1075- 1084.
10.2514/1.17426
6
M.G. Yoon, D.S. Kim, Acoustic Transfer Function of a Combustion System with Premixing Chamber, J. Mech. Sci. Technol., 31(12) (2017) 6069-6076.
10.1007/s12206-017-1151-8
7
J.S. Yoon, S.P, Joo, J.J. Kim, M.C. Lee, J.G. Lee, Y.B. Yoon, Effects of Convection Time on the High Harmonic Combustion Instability in a Partially Premixed Combustor, Proceeding of the Combustion Institute, 36(3) (2017), 3753-3761.
10.1016/j.proci.2016.06.105
8
S. Candel, D. Durox, T. Schuller, P. Palies, J.F Bourgouin, J.P. Moeck, Progress and Challenges in Swirling Flame Dynamics. C. R. Mecanique, 340 (2012) 758-768.
10.1016/j.crme.2012.10.024
9
K.K. Chen, J.H. Tu, C.W. Rowley, Variants of Dynamic Mode Decomposition: Connections between Koopman and Fourirer Analyses, J. Nonlinear Sci., 22(6) (2012) 887-915.
10.1007/s00332-012-9130-9
10
P.J. Schmid, Dynamic Mode Decomposition of Numerical and Experimental Data, J. Fluid Mech., 656 (2010) 5-28.
10.1017/S0022112010001217
11
C.H. Sohn, I.S. Park, S.K. Kim, H.J. Kim, Acoustic Tuning of Gas–Liquid Scheme Injectors for Acoustic Damping in a Combustion Chamber of a Liquid Rocket Engine, J. Sound Vib., 304(3) (2007) 793- 810.
10.1016/j.jsv.2007.03.036
12
J.W. Son, C.H. Sohn, J.S. Yoon, Y.B. Yoon, Evaluation of Combustion Instability in a Model Gas Turbine Adopting Flame Transfer Function and Dynamic Mode Decomposition, J. Korean Soc. Combust., 22(2) (2017) 6-13.
13
J.S. Yoon, M.C. Lee, S.P. Joo, J.J. Kim, Y.B. Yoon, Experimental Study on Combustion Instability Mode Shifting Phenomenon at Various Fuel Composition in the Model Gas Turbine Combustor, KSAS symposium, 2013, 256-259.
14
J.A. Kim, M.G. Yoon, D.S. Kim, Combustion Stability Analysis using Feedback Transfer Function, J. Korean Soc. Combust., 21(3) (2016) 24-31.
10.15231/jksc.2016.21.3.024
Information
  • Publisher :The Korean Society Combustion
  • Publisher(Ko) :한국연소학회
  • Journal Title :Journal of The Korean Society Combustion
  • Journal Title(Ko) :한국연소학회지
  • Volume : 24
  • No :1
  • Pages :51-56
  • Received Date : 2019-01-24
  • Revised Date : 2019-01-31
  • Accepted Date : 2019-02-07
  • DOI :https://doi.org/10.15231/jksc.2019.24.1.051
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