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Unsteady Wet Steam Flow Measurements in a Low-Pressure Test Steam Turbine
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 Title & Authors
Unsteady Wet Steam Flow Measurements in a Low-Pressure Test Steam Turbine
Duan, Chongfei; Ishibashi, Koji; Senoo, Shigeki; Bosdas, Ilias; Mansour, Michel; Kalfas, Anestis I.; Abhari, Reza S.;
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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.
 Keywords
Steam turbine;Wet steam;Unsteady flow measurement;Low-pressure stage;
 Language
English
 Cited by
 References
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