The Influence of Overlap Degree Research on Nozzle Governing Characteristic ()
Lin Ma,
Jian-qun Xu,
Xue-yu Dong,
Tao Yang
Electrical Power Simulation and Control Engineering Center of Nanjing Institute of Technology, Nanjing, China.
School of Energy and Environment, Southeast University, Nanjing, China.
DOI: 10.4236/epe.2013.54B124
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Abstract
To solve the problems existing in the flow
characteristics of steam turbine unit, the influence of valve overlap
degree on nozzle governing steam turbine had been studied. The
combined flow characteristics of given valve overlap degree were obtained for a
600MW steam turbine unit by the method of theoretical calculation combined with
simulation test, and the influence of valve overlap degree on governing stage
efficiency and steam chest pressure had been also analyzed. This paper
discussed the selection of rational overlap degree and introduced a new method
of building model for governing stage efficiency of steam turbine in constant
pressure operation condition, which provided theoretical guidance for
optimization research on nozzle governing steam turbine operation.
Share and Cite:
L. Ma, J. Xu, X. Dong and T. Yang, "The Influence of Overlap Degree Research on Nozzle Governing Characteristic,"
Energy and Power Engineering, Vol. 5 No. 4B, 2013, pp. 642-645. doi:
10.4236/epe.2013.54B124.
Conflicts of Interest
The authors declare no conflicts of interest.
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