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has been cited by the following article:

• TITLE: The Influence of Overlap Degree Research on Nozzle Governing Characteristic

  AUTHORS: Lin Ma, Jian-qun Xu, Xue-yu Dong, Tao Yang

  KEYWORDS: Overlap Degree; Flow Characteristics; Valve Point; Governing Stage Efficiency; Operation Mode

  JOURNAL NAME: Energy and Power Engineering, Vol.5 No.4B, October 30, 2013

  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.