Unsteady flow effect on nonequilibrium condensation in 3-D low pressure steam turbine stages

Satoshi Miyake, Satoru Yamamoto, Yasuhiro Sasao, Kazuhiro Momma, Toshihiro Miyawaki, Hiroharu Ooyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

A numerical study simulating unsteady 3-D wet-steam flows through three-stage stator-rotor blade rows in a lowpressure steam turbine model experimentally conducted by Mitsubishi Heavy Industry (MHI) was presented in the last ASME Turbo Expo by our group. In this study, the previous discussion is extended to the discussion how nonequilibrium condensation is influenced by unsteady wakes and corner vortices from prefaced multi-stage blade rows. Unsteady 3-D flows through three-stage stator-rotor blade rows are simulated assuming nonequilibrium condensation. Flows with a different inlet flow condition are calculated and the results are compared with each other. Instantaneous condensate mass fractions are visualized at different spans and cross sections in the threestage stator and rotor blade rows. Also the time and space dependent values are plotted and the obtained unsteady flow characteristics are explained.

Original languageEnglish
Title of host publicationASME Turbo Expo 2013
Subtitle of host publicationTurbine Technical Conference and Exposition, GT 2013
DOIs
Publication statusPublished - 2013 Dec 17
EventASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013 - San Antonio, Tx, United States
Duration: 2013 Jun 32013 Jun 7

Publication series

NameProceedings of the ASME Turbo Expo
Volume5 B

Other

OtherASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013
CountryUnited States
CitySan Antonio, Tx
Period13/6/313/6/7

ASJC Scopus subject areas

  • Engineering(all)

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