The stage axial distance significantly influences the aerodynamic performance of turbines under some constraints. Experimental measurements and numerical simulations are used to analyze the effect of stage axial distances on the aerodynamic performance of three-stage axial turbine in this work. The aerodynamic performance of three-stage axial turbine with three different stage axial distances is experimentally measured at the air turbine test rig of Dongfang Steam Turbine Co. LTD. Experimental results show that efficiency increases when the stage axial distance decreases for the geometry under study with relative stage distance ranged from 0.14 to 0.35, and the effect of stage axial distance on the optimization velocity ratio here is very limited. In addition, unsteady Reynolds-Averaged Navier-Stokes (RANS) simulations were carried out with nonlinear harmonic method to analyze the detailed flow field of the experimental three-stage axial turbine. The numerical aerodynamic efficiency of three-stage axial turbine is in good agreement with the experimental data. Furthermore, the small stage axial distance is preferred for the higher efficiency. The detailed flow field and aerodynamic parameters of three-stage axial turbine are also illustrated and discussed.
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ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition
June 26–30, 2017
Charlotte, North Carolina, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5078-7
PROCEEDINGS PAPER
Effect of Stage Axial Distances on the Aerodynamic Performance of Three-Stage Axial Turbine Using Experimental Measurements and Numerical Simulations
Yang Chen,
Yang Chen
Xi’an Jiaotong University, Xi’an, China
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Zhuhai Zhong,
Zhuhai Zhong
Dongfang Steam Turbine Co., Ltd., Deyang, China
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Weijiu Zhou,
Weijiu Zhou
Dongfang Steam Turbine Co., Ltd., Deyang, China
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Gangyun Zhong,
Gangyun Zhong
Dongfang Steam Turbine Co., Ltd., Deyang, China
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Qi Sun,
Qi Sun
Dongfang Steam Turbine Co., Ltd., Deyang, China
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Yan Ping,
Yan Ping
Dongfang Steam Turbine Co., Ltd., Deyang, China
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Shan Wang
Shan Wang
Dongfang Steam Turbine Co., Ltd., Deyang, China
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Yang Chen
Xi’an Jiaotong University, Xi’an, China
Zhuhai Zhong
Dongfang Steam Turbine Co., Ltd., Deyang, China
Jun Li
Xi’an Jiaotong University, Xi’an, China
Weijiu Zhou
Dongfang Steam Turbine Co., Ltd., Deyang, China
Gangyun Zhong
Dongfang Steam Turbine Co., Ltd., Deyang, China
Qi Sun
Dongfang Steam Turbine Co., Ltd., Deyang, China
Yan Ping
Dongfang Steam Turbine Co., Ltd., Deyang, China
Shan Wang
Dongfang Steam Turbine Co., Ltd., Deyang, China
Paper No:
GT2017-63790, V02AT40A017; 12 pages
Published Online:
August 17, 2017
Citation
Chen, Y, Zhong, Z, Li, J, Zhou, W, Zhong, G, Sun, Q, Ping, Y, & Wang, S. "Effect of Stage Axial Distances on the Aerodynamic Performance of Three-Stage Axial Turbine Using Experimental Measurements and Numerical Simulations." Proceedings of the ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. Volume 2A: Turbomachinery. Charlotte, North Carolina, USA. June 26–30, 2017. V02AT40A017. ASME. https://doi.org/10.1115/GT2017-63790
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