Simulation of unsteady flows through three-stage middle pressure steam turbine in operation

Akihiro Uemura, Hironori Miyazawa, Takashi Furusawa, Satoru Yamamoto, Koichi Yonezawa, Shuichi Umezawa, Shuichi Ohmori

研究成果: Paper査読

1 被引用数 (Scopus)

抄録

The purpose of this study is to simulate unsteady steam flows through three-stage stator and rotor blade passages in a middle-pressure steam turbine operated in a power plant while considering manufactured and secular-changed blade shapes. The shapes of the manufactured and secular-changed blades are measured during overhaul. The numerical method is based on an in-house code developed by Tohoku University. The time-dependent pressure and the Mach number are visualized and the difference of the results obtained by assuming manufactured and secular-changed blades is explained. The simulated static temperatures assuming the blades shapes are then compared with each other and with the measured data. In addition, a simple method modifying the simulated static temperature considering real gas effect is proposed.

本文言語English
ページ884-889
ページ数6
出版ステータスPublished - 2020
イベント7th International Conference on Power Engineering, ICOPE 2019 - Kunming, China
継続期間: 2019 10 212019 10 25

Conference

Conference7th International Conference on Power Engineering, ICOPE 2019
国/地域China
CityKunming
Period19/10/2119/10/25

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 燃料技術
  • エネルギー工学および電力技術

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