Numerical simulation of wet steam two-phase flow in the last-stage stationary blade of super-critical steam turbine

Xie, Danmei; Shi, Yang; Li, Wangfan; Hou, Youmin; Yu, Xiongdong; Qin, Hanshi

doi:10.1109/drpt.2011.5993996

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Although the blade profiles of the experiment and simulation were similar to each other, some differences existed in operation parameters and dimension [5]. To eliminate the interference of these differences, a non-dimensional parameters was investigated to convert simulation and experimental data [15]. The definition of non-dimensional parameter is…”

Section: Simulation Results Of Vapor Phasementioning

confidence: 99%

Numerical simulation of a new hollow stationary dehumidity blade in last stage of steam turbine

Hou

Xie

et al. 2011

Front. Energy

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As a result of adopting saturation steam and long blade, problems of water erosion of last stage blade for steam turbine become more prominent. In order to improve the operation reliability and efficiency of steam turbine, it is necessary to investigate the nonequilibrium condensing wet steam two phase flow and the dehumidity method. A wet steam model with user defined function based on FLUENT software was investigated to simulate the steam condensing flow in the cascades. The simulation consequences show that the pressure variations in simulation depict a good agreement with the experiment data. On the basis of the discrete phase model simulation results and experiment data, the efficiency of existing dehumidity blade with suction slot was calculated. A new stationary dehumidity blade was designed to elevate the dehumidity efficiency: the efficiency in the suction surface was increased by 21.5%, and that in the pressure surface was increased by 12.2%.

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Section: Simulation Results Of Vapor Phasementioning

confidence: 99%

Numerical simulation of a new hollow stationary dehumidity blade in last stage of steam turbine

Hou

Xie

et al. 2011

Front. Energy

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“…Although turbomachines are one of the most widely used machines, the two main areas of applications are power generation and propulsion. Current high-level research topics related to power generation turbines include numerical modeling of two-phase flow fields, and research efforts are aimed at reducing erosion (cavitation erosion and liquid drop erosion) in these machines [8,9,10]. Computational fluid dynamics (CFD) is being increasingly used to assess blade design with respect to aero-elastic instability for improving component life span and efficiency [11].…”

Section: • Turbomachinery Materials Performance Enhancementmentioning

confidence: 99%

Introductory Chapter: Rotating Machinery

Hailu¹

2020

Rotating Machinery

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Numerical simulation of wet steam two-phase flow in the last-stage stationary blade of super-critical steam turbine

Cited by 2 publications

References 4 publications

Numerical simulation of a new hollow stationary dehumidity blade in last stage of steam turbine

Numerical simulation of a new hollow stationary dehumidity blade in last stage of steam turbine

Introductory Chapter: Rotating Machinery

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