Numerical Simulation of Suction Slot Structure on the LP Last Stage Stationary Blades of Steam Turbine

Sun, Cai; Xie, Danmei; Tan, Cheng-cheng; Zhao, Xin; Li, Wangfan

doi:10.1109/appeec.2010.5449205

Cited by 3 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the research of literature [10], the ratio of discrete phase droplets in the suction surface and pressure surface corresponds to the ratio of water droplets deposition in the suction surface and pressure surface of experiment and actual operation. Calculations are summarized in Table 2.…”

Section: Calculation Of Water Droplets Depositionmentioning

confidence: 99%

Numerical Simulation of Water Droplets Deposition on the Last-Stage Stationary Blade of Steam Turbine

Xie¹,

Yu²,

Li³

et al. 2010

EPE

Self Cite

View full text Add to dashboard Cite

Based on the method of discrete phase, the law of droplets' deposition in the last stage stationary blade of a supercritical 600 MW Steam Turbine is simulated in the first place of this paper by using the Wet-steam model in commercial software FLUENT, where the influence of inlet angle of water droplets of the stationary blades is also considered. Through the calculation, the relationship between the deposition and the diameter of water droplets is revealed. Then, the amount of droplets deposition in the suction and pressure surface is derived. The result is compared with experimental data and it proves that the numerical simulation result obtained in this paper is reasonable. Finally, a formula of the relationship between the diameter of water droplets and the inlet angle is fit, which could be used for approximate calculation in the engineering applications.

show abstract

Section: Calculation Of Water Droplets Depositionmentioning

confidence: 99%

Numerical Simulation of Water Droplets Deposition on the Last-Stage Stationary Blade of Steam Turbine

Xie¹,

Yu²,

Li³

et al. 2010

EPE

Self Cite

View full text Add to dashboard Cite

show abstract

“…Two blowing slot are introduced into the ordinary dewetting blade. A high-parameter steam would blow from these two blowing slot to change the steam condensing process characteristic near the blade surface (Researches on the dewetting blade with suction slot had been conducted completely [7][8][9][10], so the simulation of this blade was not included in this research).…”

Section: Physical Model and Boundary Conditions Of Numerical Simulationmentioning

confidence: 99%

“…In order to improve the efficiency of this method, many researches were conducted to study the effect of geometric parameters (as position, width, pressure, the angle between suction slot and the blade's surface, etc) on the dehumidity efficiency [7][8][9][10][11]. Actually, according to the calculation results obtained in this paper based on the experimental results in Ref.…”

Section: Introductionmentioning

confidence: 99%

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

Hou

Xie

et al. 2011

Front. Energy

View full text Add to dashboard Cite

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%.

show abstract

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

Xie

Shi

et al. 2011

2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)

View full text Add to dashboard Cite

Numerical Simulation of Suction Slot Structure on the LP Last Stage Stationary Blades of Steam Turbine

Cited by 3 publications

References 1 publication

Numerical Simulation of Water Droplets Deposition on the Last-Stage Stationary Blade of Steam Turbine

Numerical Simulation of Water Droplets Deposition on the Last-Stage Stationary Blade of Steam Turbine

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

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

Contact Info

Product

Resources

About