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2017 | 24 | Special Issue S3 |
Tytuł artykułu

Calculating study of the turbine at last stage flow field in the small volume flow condition

Autorzy
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Based on basic equation and boundary layer theory of pneumodynamics, the thesis conducts numerical modeling and theoretical analysis on the last stage of turbine characteristics at a small volume flow by using FLUENT, gives an emphasized analysis on the position of first occurrence of backflow and its expansion direction and comes up with flow structure of the turbine flow field at last stage in the small volume flow condition. In connection with specific experiments, it puts forward the flow model of backflow occurring in the last stage field and the solution to the model. The flow field at last stage for a 100MW turbine in the small volume flow condition that is calculated by using the model is basically in conformity to the actual result
Słowa kluczowe
EN
Wydawca
-
Rocznik
Tom
24
Opis fizyczny
p.23-27,fig.,ref.
Twórcy
autor
  • School of Energy and Power Engineering, Northeast Electric Power University, Jinlin 132012, China
autor
  • School of Energy and Power Engineering, Northeast Electric Power University, Jinlin 132012, China
autor
  • School of Energy and Power Engineering, Northeast Electric Power University, Jinlin 132012, China
autor
  • School of Energy and Power Engineering, Northeast Electric Power University, Jinlin 132012, China
autor
  • School of Energy and Power Engineering, Northeast Electric Power University, Jinlin 132012, China
Bibliografia
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  • 3. Q. Liu, 2007.End-stage blade of steam turbine erosion mechanism analysis and Stellite piece replacement study. Shanghai Jiaotong University.
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  • 8. X. S. Cai, T. B. Ning, F. X. Niu, G. C. Wu, Y. Y. Song, Z. T. Sang, Z. L. Xu, C. S. Cen, Y. F. Guo, J. Zhang, G. Li, 2008. Low pressure turbine 300 MW Direct Air Flow Field in the last stage of blast and humidity measurement. Chinese Society for Electrical Engineering. 28 (26), 7-13.
  • 9. W. Gerschutz, M. Casey, F.Truckenmuller, 2005. Experimental investigations of rotating flow instabilities in the last stage of a low-pressure model steam turbine during windage. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy. 219 (6), 499-510.
  • 10. H. T. Wang, X. C. Zhu, H., D. Yang, W. Zhou, C. H. Du, 2009. Numerical Optimization Design of Turbine Low Pressure Exhaust Hood. Power Engineering. 29 (1), 40-45.
  • 11. W. L. Xie, H. T. Wang, X. C. Zhu, 2011. Analysis of the steam turbine low pressure cylinder exhaust diversion baffles affect its performance. Power Engineering. 31(5), 347-351.
  • 12. H. T. Wang, X. C. Zhu, Z. H. Du, 2010. Aerodynamic optimization for low pressure turbine exhaust hood using Kriging surrogate model. International Communications in Heat and Mass Transfer. 37(8), 998-1003.
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  • 14. V. V. Ris, L. L. Simoyu, 2009. Numerical simulation of flow in a steam-turbine exhaust hood: Comparison results of calculations and data from a full-scale experiment. Thermal Engineering English translation of Teploenergetika. 56(4), 277-283.
  • 15. X. S. Cai, T. B. Ning, F. X. Niu, G. C. Wu, Y. Y. Song, Z. T. Sang, Z. L. Xu, C. S. Cen, Y. F. Guo, J. Zhang, G. Li, 2009. 300MW Direct Air Turbine last stage low pressure wet steam Measurement. Chinese Society for Electrical Engineering. 29(2), 1-7.
  • 16. L. Qi, Z. P. Zou, H. Z. Lu, E. L. Yu, D. Q. Tian, L. M. Shi, 2005. Numerical Simulation of Air Cooled Turbine Last Two Stages three-dimensional flow. Power Engineering. 25(5), 647-651.
  • 17. L. Qi, N. Zheng, H. G. Cheng, 2005. Numerical Simulation of the last stage turbine unsteady flow. Journal of Beijing University of Aeronautics and Astronautics. 31(2), 206-211.
  • 18. J. L. Fu, J. J. Liu, 2008. Influences of inflow condition on non-axisymmetric flows in turbine exhaust hoods, Journal of Thermal Science. 17(4), 305-313.
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  • 23. Y. L. Zhou, 2010. Multiphase flow parameters detection theory and its application. Science and Technology Press.
Typ dokumentu
Bibliografia
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Identyfikator YADDA
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