International Journal of Fluid Machinery and Systems

Korean Society for Fluid machinery (한국유체기계학회)
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Unsteady Wet Steam Flow Measurements in a Low-Pressure Test Steam Turbine

  • Duan, Chongfei (Turbo Machinery Research Department, Research & Development Center, Mitsubishi Hitachi Power System, Ltd.) ;
  • Ishibashi, Koji (Turbo Machinery Research Department, Research & Development Center, Mitsubishi Hitachi Power System, Ltd.) ;
  • Senoo, Shigeki (Turbo Machinery Research Department, Research & Development Center, Mitsubishi Hitachi Power System, Ltd.) ;
  • Bosdas, Ilias (Laboratory for Energy Conversion, Department of Mechanical and Process Engineering, ETH Zurich IET) ;
  • Mansour, Michel (Laboratory for Energy Conversion, Department of Mechanical and Process Engineering, ETH Zurich IET) ;
  • Kalfas, Anestis I. (Department of Mechanical Engineering, Aristotle University of Thessaloniki) ;
  • Abhari, Reza S. (Laboratory for Energy Conversion, Department of Mechanical and Process Engineering, ETH Zurich IET)
  • Received : 2015.10.27
  • Accepted : 2015.12.18
  • Published : 2016.03.31
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Abstract

An experimental study is conducted for unsteady wet steam flow in a four-stage low-pressure test steam turbine. The measurements are carried out at outlets of the last two stages by using a newly developed fast response aerodynamic probe. This FRAP-HTH probe (Fast Response Aerodynamic Probe - High Temperature Heated) has a miniature high-power cartridge heater with an active control system to heat the probe tip, allowing it to be applied to wet steam measurements. The phase-locked average results obtained with a sampling frequency of 200 kHz clarify the flow characteristics, such as the blade wakes and secondary vortexes, downstream from the individual rotational blades in the wet steam environment.

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References

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