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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

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.
  • 4. G. S. Xie, 2008.Turbine last stage blades Anti-erosion carbon nitride titanium nitride composite coating preparation and basic research. Central South University.
  • 5. W. L. Xu, J. D. Wang, D.R. Chen, F. B. Liu, 2010.Last stage of turbine blade erosion bench design.Journal of Tsinghua UniversityNatural Sciences, 50(8), 1201-1204.
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  • 7. Z. B. Zhang, Y. J. Tian, L. H. Cao, Y. Sun, 2013. Numerical analysis of flow field within the turbine stage small volume flow conditions. Chemical Machinery. 40 (1), 94-97.
  • 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.
  • 13. W. Zhang, Paik, Bu.Geun, Jang, Young Gil, 2007. Particle image velocimetry measurements of the three-dimensional flow in an exhaust hood model of a low-pressure steam turbine. Journal of Engineering for Gas Turbines and Power. 129(2), 411-419.
  • 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

Identyfikatory

Identyfikator YADDA

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