Combustion and reaction

Effect of Hydrogen-Rich Fuels on Turbulent Combustion of Advanced Gas Turbine

  • ZHANG Weikuo ,
  • KONG Wenjun ,
  • SUI Chunjie ,
  • WANG Tong ,
  • PENG Li
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  • 1. Beijing Branch of Huadian Electric Power Research Institute Co., Ltd, Beijing 100071, China
    2. School of Astronautics, Beihang University, Beijing 102216, China
    3. College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China

Online published: 2023-11-30

Supported by

This work is supported by the National Natural Science Foundation of China (No. 52076007).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2021

Abstract

The effect of high hydrogen fuel on turbulent combustion in advanced gas turbine combustor with our newly designed arrayed-vanes premixer was studied by large eddy simulation (LES). The dynamic Smagorinsky model is used to calculate the subgrid stress. Finite-rate chemistry is included using a four steps mechanisms. A thickened flame model was used to deal with the reaction rate. The transport and thermal properties are obtained by CHEMKIN packages. The results show that with the increase of hydrogen content, the wake recirculation zone and central toroidal recirculation zone separate. The turbulent fluctuations of H2/air flame first decreases and then increases. For the response of turbulent flame, the results show that the flame brush is narrow and short with the increase of hydrogen content. When the hydrogen content is low, the syngas/air flame can also propagate in the high-speed flow. Therefore, for different flames, the position of outer propagating flame is almost the same. The results also show that the fluctuation of flame intensity increases with the increase of hydrogen content. Although the increase of hydrogen content shortens the chemical reaction time and suppresses the perturbation of turbulent eddies, the cellular instability may further enhance the fluctuation of flame intensity. 

Cite this article

ZHANG Weikuo , KONG Wenjun , SUI Chunjie , WANG Tong , PENG Li . Effect of Hydrogen-Rich Fuels on Turbulent Combustion of Advanced Gas Turbine[J]. Journal of Thermal Science, 2022 , 31(2) : 561 -570 . DOI: 10.1007/s11630-021-1539-8

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