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Flow field and combustion characteristics of integrated combustion mode using cavity with low flow resistance for gas turbine engines

Author

Listed:
  • Zhang, R.C.
  • Bai, N.J.
  • Fan, W.J.
  • Yan, W.H.
  • Hao, F.
  • Yin, C.M.

Abstract

Structural weight and flow resistance of the combustor were important parameters affecting the overall performance of gas turbine. The integrated combustion mode and trapped-vortex combustion mode were the means to fulfill these requirements. Components integration of combustor was an important trend in the development of the combustion technology. In this paper, the trapped-vortex combustion mode was combined with integrated combustion mode, and a new type of integrated combustor with various cavities was proposed. By integrating the flameholder with the structural strut, light weight of the structure could be achieved. By adopting trapped vortex combustion mode, high combustion efficiency could be obtained in wide range of inlet velocity and fuel-air ratio. Using the particle image velocimetry and experimental system, the flow field and combustion characteristics, including ignition, combustion efficiency, outlet temperature distribution and wall cooling characteristics, were thoroughly analyzed. Fuel droplets injected by simple nozzles could be evaporated and mixed with mainstream air in a short distance. The feasibility of the novel combustion mode was completely verified. Low flow resistance and high combustion efficiency was achieved, which was difficult for the integrated combustion mode. The results were beneficial to the research of high performance gas turbines with compact structure.

Suggested Citation

  • Zhang, R.C. & Bai, N.J. & Fan, W.J. & Yan, W.H. & Hao, F. & Yin, C.M., 2018. "Flow field and combustion characteristics of integrated combustion mode using cavity with low flow resistance for gas turbine engines," Energy, Elsevier, vol. 165(PA), pages 979-996.
    • Handle: RePEc:eee:energy:v:165:y:2018:i:pa:p:979-996
    DOI: 10.1016/j.energy.2018.09.121
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    References listed on IDEAS

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    1. Zhang, Rongchun & Xu, Quanyong & Fan, Weijun, 2018. "Effect of swirl field on the fuel concentration distribution and combustion characteristics in gas turbine combustor with cavity," Energy, Elsevier, vol. 162(C), pages 83-98.
    2. Zhang, R.C. & Fan, W.J. & Xing, F. & Song, S.W. & Shi, Q. & Tian, G.H. & Tan, W.L., 2015. "Experimental study of slight temperature rise combustion in trapped vortex combustors for gas turbines," Energy, Elsevier, vol. 93(P2), pages 1535-1547.
    3. Zhang, R.C. & Hao, F. & Fan, W.J., 2018. "Combustion and stability characteristics of ultra-compact combustor using cavity for gas turbines," Applied Energy, Elsevier, vol. 225(C), pages 940-954.
    4. Zhang, R.C. & Fan, W.J. & Shi, Q. & Tan, W.L., 2014. "Combustion and emissions characteristics of dual-channel double-vortex combustion for gas turbine engines," Applied Energy, Elsevier, vol. 130(C), pages 314-325.
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    Citations

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    Cited by:

    1. Zhang, R.C. & Bai, N.J. & Fan, W.J. & Huang, X.Y. & Fan, X.Q., 2019. "Influence of flame stabilization and fuel injection modes on the flow and combustion characteristics of gas turbine combustor with cavity," Energy, Elsevier, vol. 189(C).
    2. Shilong, Zhao & Yuxin, Fan, 2020. "Experimental and numerical study on fuel distribution and flame expansion of the enhanced flame holding devices," Energy, Elsevier, vol. 203(C).
    3. Shilong, Zhao & Yuxin, Fan, 2020. "Experimental and numerical study on the flame characteristics and cooling effectiveness of air-cooled flame holder," Energy, Elsevier, vol. 209(C).
    4. Shilong, Zhao & Yuxin, Fan & Deng, Tiantai & Crookes, Danny, 2020. "Influence of injection scheme on flame characteristics in partially premixed combustion," Energy, Elsevier, vol. 205(C).
    5. Zhang, R.C. & Huang, X.Y. & Fan, W.J. & Bai, N.J., 2019. "Influence of injection mode on the combustion characteristics of slight temperature rise combustion in gas turbine combustor with cavity," Energy, Elsevier, vol. 179(C), pages 603-617.
    6. Xiangzhong Jia & Yong Shan & Xingping Xu & Jingzhou Zhang & Xiaoming Tan, 2021. "Effects of Bypass Flow Distribution on Cold Flow Characteristics of Integrated Afterburner," Energies, MDPI, vol. 14(18), pages 1-17, September.
    7. Joo, Seongpil & Choi, Jongwun & Lee, Min Chul & Kim, Namkeun, 2021. "Prognosis of combustion instability in a gas turbine combustor using spectral centroid & spread," Energy, Elsevier, vol. 224(C).
    8. Miao, Junjie & Fan, Yuxin & Wu, Weiqiu & Zhao, Shilong, 2021. "Effect of air-assistant on ignition and flame-holding characteristics in a cavity-strut based combustor," Applied Energy, Elsevier, vol. 283(C).

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