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Influence of injection mode on the combustion characteristics of slight temperature rise combustion in gas turbine combustor with cavity

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  • Zhang, R.C.
  • Huang, X.Y.
  • Fan, W.J.
  • Bai, N.J.

Abstract

Interstage turbine combustors can be used to improve the thrust-to-weight ratio of gas turbines, but their operating conditions and technical requirements are obviously different from those of traditional gas turbine combustors. A typical feature of these combustors is the slight temperature rise combustion under the high velocity conditions of combustor inlets. In this study, a new type of interstage turbine combustor with high performance was proposed, and the influence of the injection mode on the combustion characteristics was investigated. Seven combustion modes with a trapped-vortex combustion zone and preheated fuel nozzles were designed. The effects of the average temperature of the combustion zone (changed by the air injection mode) and the combustion-zone temperature distribution (changed by the combustion-zone configuration) on the combustion characteristics, including the stable combustion boundary, the combustion efficiency, and the temperature distribution, were studied experimentally and numerically. The results showed that high-efficiency combustion in a wide, stable working range was achieved. The new combustor had a shorter length than the conventional combustor and had a wider lean blowout boundary compared to the same type of combustor. Based on the results, the optimal combustor configuration that could be used for practical applications in high-efficiency gas turbines was determined.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:energy:v:179:y:2019:i:c:p:603-617
    DOI: 10.1016/j.energy.2019.04.223
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    References listed on IDEAS

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    1. Tyliszczak, Artur & Boguslawski, Andrzej & Nowak, Dariusz, 2016. "Numerical simulations of combustion process in a gas turbine with a single and multi-point fuel injection system," Applied Energy, Elsevier, vol. 174(C), pages 153-165.
    2. 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.
    3. 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.
    4. 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.
    5. 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.
    6. Jin, Yi & Li, Yefang & He, Xiaomin & Zhang, Jingyu & Jiang, Bo & Wu, Zejun & Song, Yaoyu, 2014. "Experimental investigations on flow field and combustion characteristics of a model trapped vortex combustor," Applied Energy, Elsevier, vol. 134(C), pages 257-269.
    7. 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:

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    2. Fu, Zaiguo & Gao, Huanhuan & Zeng, Zhuoxiong & Liu, Jiang & Zhu, Qunzhi, 2020. "Generation characteristics of thermal NOx in a double-swirler annular combustor under various inlet conditions," Energy, Elsevier, vol. 200(C).
    3. 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).
    4. Huang, Yakun & He, Xiaomin & Zhang, Huangwei & Zhu, Zhixin & Zhu, Huanyu, 2022. "Flame stability optimization of cavity primary air-jet form in an augmentor," Energy, Elsevier, vol. 239(PA).
    5. Zhao, Yuling & He, Xiaomin & Li, Mingyu, 2020. "Effect of mainstream forced entrainment on the combustion performance of a gas turbine combustor," Applied Energy, Elsevier, vol. 279(C).
    6. Fuquan Deng & Minwei Zhao & Shunchuang Qin & Zhaokun Wang & Yongliang Xie & Hongtao Zheng & Xiao Liu & Feng Zhang, 2023. "Numerical Simulation Study on the Dynamics of Bluff-Body Flames under Oxygen-Lean Conditions," Energies, MDPI, vol. 17(1), pages 1-19, December.
    7. Wan, Jianlong & Zhao, Haibo, 2021. "Ultra-lean blow-off dynamics of a holder-stabilized premixed flame in a preheated mesoscale combustor near laminar critical condition," Energy, Elsevier, vol. 228(C).

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