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Prediction of lean blowout performance of gas turbine combustor based on flow structures

Published online by Cambridge University Press:  21 December 2017

E. Ahmed  and
H. Yong
E. Ahmed*
Affiliation:
Collaborative Innovation Centre of Advanced Aero-Engines, National Key Laboratory of Science and Technology on Aero-Engines, School of Energy and Power Engineering, Beihang University, Beijing, China
H. Yong
Affiliation:
Collaborative Innovation Centre of Advanced Aero-Engines, National Key Laboratory of Science and Technology on Aero-Engines, School of Energy and Power Engineering, Beihang University, Beijing, China
*
ejaz20002@hotmail.com
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Abstract

The insufficient depth of modelling to capture the flow physics within primary combustion zone is the prime reason behind limited accuracy of semi-empirical correlations. Flame volume concept establishes a better connection between LBO performance and flame parameters, which improves the modelling depth and hence the prediction accuracy. Nonetheless, estimation of flame parameters is a challenging task. In addition, the iterative loop to approach convergence for a single geometry demands several numerical simulation runs. In this study, the association of LBO performance has been extended to flow structures, they are uniquely associated with the geometric features and can efficiently relate global LBO performance with primary zone geometry. The lean blowout phenomenon was presented as a contest between igniting and extinction forces within Reverse Flow Zone. These forces were quantified by four performance parameters including area, minimum axial velocity, average temperature, and average velocity. Selected parameters provide valuable information regarding the size of recirculation bubble, the intensity of flow reversal and the amount of entrained hot gases. For the purpose of validation, 11 combustor geometries were selected. The RANS simulation was carried out to estimate performance parameters, and predicted performance was compared against experimental data. The excellent agreement highlights the efficiency and promising future for the proposed methodology. Moreover, the association of prediction process with flow structure, instead of geometric features/dimension, makes it universal prediction methodology for wide range of combustor configurations.

Keywords

gas turbine combustionlean blowoutreactive flow simulation
Type
Research Article
Information
The Aeronautical Journal , Volume 122 , Issue 1248 , February 2018 , pp. 238 - 259
Copyright
Copyright © Royal Aeronautical Society 2017 

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References

REFERENCES

1. Ballal, D.R. and Lefebvre, A.H. Weak extinction limits of turbulent heterogeneous fuel/air mixtures, J Engineering for Gas Turbines and Power, 1980, 102, (2), pp 416–421.CrossRefGoogle Scholar
2. Heng, Q.P., Jasuja, A.K. and Lefebvre, A.H. Influence of air and fuel flows on gas turbine sprays at high pressures, Symposium on Combustion, Pittsburgh, PA, 1996, 26, (2), pp 2757–2762.CrossRefGoogle Scholar
3. Ballal, D.R. and Lefebvre, A.H. Weak extinction limits of turbulent flowing mixtures, J Engineering for Power, 1979, 101, (3), pp 343–348.CrossRefGoogle Scholar
4. Ateshkadi, A., McDonell, V.G. and Samuelsen, G.S. Lean blowout model for a spray-fired swirl-stabilized combustor, Proceedings of the Combustion Institute, 2000, 28, (1), pp 1281–1288.CrossRefGoogle Scholar
5. Smith, C.E., Nickolaus, D., Leach, T., Kiel, B. and Garwick, K. LES blowout analysis of premixed flow past V-gutter flameholder, 45th AIAA Aerospace Science meeting and Exhibit, Reno, Nevada , 2007, 170.CrossRefGoogle Scholar
6. Khosla, S., Leach, T.T. & Smith, C.E. Flame stabilization and role of von Karman vortex shedding behind bluff body flameholders, 43rd Joint propulsion conference, Cincannati, OH, July, 2007, 5653, p 2007.CrossRefGoogle Scholar
7. Black, D.L. and Smith, C.E. Transient lean blowout modeling of an aero low emission fuel injector, 39th joint propulsion conference and exhibit, Huntsville, Alabama , 2003, 4520.Google Scholar
8. Tyliszczak, A., Cavaliere, D.E. and Mastorakos, E. LES/CMC of blow-off in a liquid fueled swirl burner, Flow, Turbulence and Combustion, 2014, 92, (1-2).CrossRefGoogle Scholar
9. Ge, Y., Cleary, M.J. and Klimenko, A.Y. Sparse-Lagrangian FDF simulations of Sandia flame e with density coupling, Proceedings of the Combustion Institute, 2011, 33, (1), pp 1401–1409.CrossRefGoogle Scholar
10. Sturgess, G.J., Sloan, D.G., Lesmerises, A.L., Heneghan, S.P. and Ballal, D.R. Design and development of a research combustor for lean blow-out studies, J Engineering for Gas Turbines and Power-Transactions of the ASME, 1992, 114, (1), pp 13–19.CrossRefGoogle Scholar
11. Sturgess, G.J. and Shouse, D.T. A hybrid model for calculating lean blowouts in practical combustors, 32nd Joint Propulsion Conference and Exhibit, Lake Buena Vista, FL , no. July, pp 1–3, 1996.Google Scholar
12. Hu, B., Huang, Y. and Wang, F. FIA method for LBO limit predictions of aero-engine combustors based on FV model, Aerospace Science and Technology, 2013, 28, (1), pp 435–446.CrossRefGoogle Scholar
13. Hu, B., Huang, Y., Wang, F. and Xie, F. Numerical simulation of cold flow field of aero-engine combustors for lean blow off analysis, ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition, 2011, pp 477-484.CrossRefGoogle Scholar
14. Hu, B., Zhao, Q. and Xu, J. Predicting lean blowout limit of combustors based on semi-empirical correlation and simulation, J Propulsion and Power, 2015, 32, (1), pp 1–13.Google Scholar
15. Ahmed, E. and Huang, Y. Flame volume prediction and validation for lean blow-out of gas turbine combustor, Aeronautical J, 2017, pp 1–26.Google Scholar
16. Ateshkadi, A., McDonell, V.G. and Samuelsen, G.S. Effect of hardware geometry on gas and drop behavior in a radial mixer spray, Symposium on Combustion, 1998, 27, (2), pp 1985–1992.CrossRefGoogle Scholar
17. Xie, F., Huang, Y., Hu, B. and Wang, F. Improved semiempirical correlation to predict lean blowout limits for gas turbine combustors, J Propulsion and Power, 2012, 28, (1), pp 197–203.CrossRefGoogle Scholar
18. Xie, F., Huang, Y., Wang, F. and Hu, B. Visualization of the lean blowout process in a model combustor, ASME Turbo Expo 2010: Power for Land, Sea, and Air, 2010, pp 1-7.CrossRefGoogle Scholar
19. Xie, F., Huang, Y., Wang, F. and Hu, B. Visualization of the lean blowout process in a model combustor with a swirl cup, ASME Turbo Expo 2010: Power for Land, Sea, and Air, 2010, pp 433-439.CrossRefGoogle Scholar
20. Stöhr, M., Boxx, I., Carter, C. and Meier, W. Dynamics of lean blowout of a swirl-stabilized flame in a gas turbine model combustor, Proceedings of the Combustion Institute, 2011, 33, (2), pp 2953–2960.CrossRefGoogle Scholar
21. Vanoverberghe, K.P., Van Den Bulck, E.V. and Tummers, M.J. Confined annular swirling jet combustion, Combustion Science and Technology, 2003, 175, (3), pp 545–578.CrossRefGoogle Scholar
22. Sturgess, G.J., Sloan, D.G., Lesmerises, A.L., Heneghan, S.P. and Ballal, D.R. Design and development of a research combustor for lean blowout studies, ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition, 1990, no. i, pp V003T06A029-V003T06A029.Google Scholar
23. Davoudzadeh, F., Liu, N. and Moder, J.P. Investigation of swirling air flows generated by axial swirlers in a flame, ASME Turbo Expo 2006: Power for Land, Sea and Air May 8-11, 2006, Barcelona, Spain, 2006, pp 1-12.CrossRefGoogle Scholar
24. Hu, B., Huang, Y., Wang, F. and Xie, F. CFD predictions of LBO limits for aero-engine combustors using fuel iterative approximation, Chinese J Aeronautics, 2013, 26, (1), pp 74–84.CrossRefGoogle Scholar
25. Xiao, W. and Huang, Y. Lean blowout limits of a gas turbine combustor operated with aviation fuel and methane, Heat Mass Transf., 2016, 52, (5), pp 1015–1024.CrossRefGoogle Scholar
26. Marchione, T., Ahmed, S.F. and Mastorakos, E. Ignition of turbulent swirling n-heptane spray flames using single and multiple sparks, Combustion and Flame, 2009, 156, (1), pp 166–180.CrossRefGoogle Scholar
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