Study on Radial Thrust of Single-Blade Reverse Running Pump Turbine

2019 ◽  
Vol 2019.25 (0) ◽  
pp. 19H08
Author(s):  
Yusuke YOSHIZAWA ◽  
Yasuyuki NISHI
Keyword(s):  
Pump Turbine ◽  
Radial Thrust

scholarly journals Study on Reverse Running Pump Turbine (Radial Thrust and Runaway Speed Characteristics).

2000 ◽  
Vol 66 (641) ◽  
pp. 167-173
Author(s):  
Hitoshi SHINHAMA ◽  
Junichiro FUKUTOMI ◽  
Yoshiyuki NAKASE ◽  
Kousuke TAKEMURA ◽  
Sunao MIYAUCHI
Keyword(s):  
Pump Turbine ◽  
Radial Thrust

scholarly journals Numerical analysis of an initial design of a counter-rotating pump-turbine

2021 ◽  
Vol 774 (1) ◽  
pp. 012066
Author(s):  
Jonathan Fahlbeck ◽  
Håkan Nilsson ◽  
Saeed Salehi ◽  
Mehrdad Zangeneh ◽  
Melvin Joseph
Keyword(s):  
Numerical Analysis ◽  
Pump Turbine ◽  
Initial Design

scholarly journals Turbine mode start-up simulation of a variable speed Francis pump-turbine prototype – Part II: 3-D unsteady CFD and FEM

2021 ◽  
Vol 774 (1) ◽  
pp. 012070
Author(s):  
D. Biner ◽  
S. Alligné ◽  
V. Hasmatuchi ◽  
C. Nicolet ◽  
N. Hugo ◽  
...  
Keyword(s):  
Variable Speed ◽  
Pump Turbine ◽  
Start Up ◽  
Turbine Mode

scholarly journals Fatigue Life Prediction of a Pump Turbine Runner

2021 ◽  
Vol 627 ◽  
pp. 012025
Author(s):  
Q L He ◽  
T Liu ◽  
X L Yang ◽  
F N Chen ◽  
C Wang ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Fatigue Life Prediction ◽  
Pump Turbine ◽  
Turbine Runner

Fluid Added Mass Effect in the Modal Response of a Pump-Turbine Impeller

2009 ◽  
Author(s):  
Eduard Egusquiza ◽  
Carme Valero ◽  
Quanwei Liang ◽  
Miguel Coussirat ◽  
Ulrich Seidel
Keyword(s):  
Natural Frequencies ◽  
Experimental Tests ◽  
Mass Effect ◽  
Added Mass ◽  
Mode Shapes ◽  
Pump Turbine ◽  
Modal Response ◽  
Surrounding Fluid ◽  
Turbine Impeller ◽  
Good Agreement

In this paper, the reduction in the natural frequencies of a pump-turbine impeller prototype when submerged in water has been investigated. The impeller, with a diameter of 2.870m belongs to a pump-turbine unit with a power of around 100MW. To analyze the influence of the added mass, both experimental tests and numerical simulations have been carried out. The experiment has been performed in air and in water. From the frequency response functions the modal characteristics such as natural frequencies and mode shapes have been obtained. A numerical simulation using FEM (Finite Elements Model) was done using the same boundary conditions as in the experiment (impeller in air and surrounded by a mass of water). The modal behaviour has also been calculated. The numerical results were compared with the available experimental results. The comparison shows a good agreement in the natural frequency values both in air and in water. The reduction in frequency due to the added mass effect of surrounding fluid has been calculated. The physics of this phenomenon due to the fluid structure interaction has been investigated from the analysis of the mode-shapes.

scholarly journals Study on Reverse Running Pump Turbine.

1999 ◽  
Vol 65 (638) ◽  
pp. 3399-3405 ◽  
Author(s):  
Hitoshi SHINHAMA ◽  
Junichiro FUKUTOMI ◽  
Yoshiyuki NAKASE ◽  
Yontao CHIN ◽  
Tadaaki KUWAUCHI ◽  
...  
Keyword(s):  
Pump Turbine
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