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A Study of Combustion Instability Mode according to the Variation of Combustor Length in Dual Swirl Gas Turbine Model Combustor
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 Title & Authors
A Study of Combustion Instability Mode according to the Variation of Combustor Length in Dual Swirl Gas Turbine Model Combustor
Jang, Munseok; Lee, Keeman;
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 Abstract
This study described the experimental investigations of combustion instability in a model gas turbine combustor. Strong coupling between pressure oscillations and unsteady heat release excites a self-sustained acoustic wave, which results in a loud and annoyed sound, and may also lead to a structural damage to the combustion system. In this study, in order to examine the combustion instability phenomenon of a dual swirling combustor configuration, the information of heat release and pressure fluctuation period with respect to the variation in both thermal power and combustor length was collected experimentally. As a result, the fundamental acoustic frequency turned out to increase with the increasing thermal power without respect to the combustor length. The frequency response to the combustor length was found to have two distinct regimes. In a higher power regime the frequency significantly decreases with the combustor length, as it is expected from the resonance of gas column. However, in a lower power regime it is almost insensitive to the combustor length. This insensitive response might be a result of the beating phenomenon between the interacting pilot and main flames with different periods.
 Keywords
Gas turbine;Partial premixed combustion;Combustion instability;Thermo-acoustic instability;Longitudinal mode;Beating phenomenon;
 Language
Korean
 Cited by
1.
이중선회 가스터빈 모델연소기에서 맥놀이 현상으로 인한 연소불안정 특성,장문석;이기만;

한국추진공학회지, 2016. vol.20. 6, pp.61-69 crossref(new window)
1.
Combustion Instability Characteristics due to the Beating Phenomenon in the Dual Swirl Gas Turbine Model Combustor, Journal of the Korean Society of Propulsion Engineers, 2016, 20, 6, 61  crossref(new windwow)
 References
1.
Ying Huang and Vigor Yang, "Dynamics and stability of lean-premixed swirl stabilized combustion", Progress in Energy and Combustion Science, Vol. 35, 2009, pp. 293-364. crossref(new window)

2.
A.M. Steinberg, I. Boxx, M. Stohr, C.D. Carter and W. Meier, "low-flame interactions causing acoustically coupled heat release fluctuations in a thermo - acoustically unstable gas turbine model combustor", Combustion and Flame, Vol. 157, 2010, pp. 2250-2256. crossref(new window)

3.
Jangsu Lee, Min-ki Kim, Sungsoon Park, Jong-Guen Lee and Youngbin Yoon, "An Experimental Study of Instability Mode Analysis in a Model Gas Turbine Combustor", The Korea Society of Combustion, Vol. 15, 2010, pp.12-21.

4.
K. Zahringer, D. Durox, and F. Lacas, "Helmholtz behavior and transfer function of an industrial fuel swirl burner used in heating systems", International Journal of Heat and Mass Transfer, Vol, 46, 2003, pp. 3539-3548. crossref(new window)

5.
Jeongseog Oh and Youngbin Yoon, "Combustion Instability in Gas Turbine Engines", The Korean Society of Propulsion Engineers, Vol. 12, No. 4, 2008, pp. 63-77.

6.
Lord Rayleigh, "The explanation of certain acoustical phenomena", Notices of the proceedings meetings members of the Royal Institution of Great Britain, Vol. 8, 1878, pp. 536-542.

7.
K.T. Kim, J.G. Lee, B.D. Quay and D.A. Santavicca, "Spatially distributed flame transfer functions for predicting combustion dynamics in lean premixed gas turbine combustors", Combustion and Flame, 157(2010), pp. 1718-1730. crossref(new window)

8.
Inchan Choi, Keeman Lee, Mrinal Juddo and Masri, "A Study of Combustion Instability mode in Dual Swirl Gas Turbine Combustor by PLIF and Chemiluminescence Measurement", J. Korean Soc. Combust, 19(1), (2014), 29-38. crossref(new window)

9.
David G. Lilley, "Swirl Flows in Combustion : A Review, AIAA Journal", Vol. 15, No. 8, 1977, pp. 1063-1078. crossref(new window)

10.
N. Syred, M. Abdulsada, A. Griffiths, T. O'oherty and P. Bowen, "The effect of hydrogen containing Fuel blends upon flashback in swirl burners", Applid Energy, Vol. 89, No.1, 2012, pp. 106-110. crossref(new window)