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Journal of Marine Science and Engineering, 2023 As a core component of pumped storage power plants for hydro and marine power storage, this paper investigates the mechanism of pressure pulsation fluctuations under different load conditions to improve the efficiency and operational stability of the ...
Zhengwei Wang, , Wang Zhengwei
exaly +3 more sources
Flow-Induced Instabilities in Pump-Turbines in China
Engineering, 2017 The stability of pump-turbines is of great importance to the operation of pumped storage power (PSP) stations. Both hydraulic instabilities and operational instabilities have been reported in PSP stations in China.
Zhigang Zuo, Shuhong Liu
exaly +3 more sources
Systematic analysis on the energy loss in pump-turbines
Advances in Mechanical EngineeringThe pump-turbine is a key component in pumped-storage power stations, operating under complex conditions. RANS (Reynolds-Averaged Navier-Stokes) is commonly used for numerical simulations, but the differences among various RANS models under different ...
Xuelin Tang
exaly +2 more sources
A new method for regulating Pelton turbine based on ejection of discharged flow [PDF]
E3S Web of Conferences, 2023 Hydropower plants (HPPs) contribute a significant share of Russia’s electricity generation. With the prospects of developing this sector and harnessing the hydroenergy potential, it is necessary to consider methods for modernizing hydroelectric ...
Liamasov A K, Denisov K E, Biriulin M A
doaj +1 more source
Archimedean screw as fish-friendly turbines for harnessing hydropower potential [PDF]
E3S Web of Conferences, 2021 Hydraulic energy is one of the most important sources of renewable energy today. It is also a complementary source to other renewable energy sources, being the only one that offers an important nonpolluting storage capacity (through pump storage ...
Purece Cristian, Corlan Lilica
doaj +1 more source
Energies, 2020 In load rejection transitional processes in pumped-storage plants (PSPs), the process of closing pump turbines, including guide vane (GVCS) and ball valve closing schemes (BVCS), is crucial for controlling pulsating pressures and water hammer.
Jiawei Ye +4 more
doaj +1 more source
An Analysis of the Minimum Pressure Coefficient Criterion Applied to the Axial-flow Pump Design – A Case Study for a Circulating Water Channel [PDF]
Journal of Applied Fluid Mechanics, 2023 An analysis of the minimum pressure coefficient on the suction side of the axial-flow pump blades is presented as a design criterion. A Matlab code is used to improve the computer aided design process efficiency and quality.
R. V. Correia Ramalho +2 more
doaj +1 more source
Investigating the Cavitation and Pressure Fluctuation Characteristics of a Cryogenic Inducer under Gas Phase Decomposition Operating Conditions [PDF]
Journal of Applied Fluid MechanicsThe cavitation properties and pressure pulsation behaviour of a cryogenic inducer under incipient gas precipitation conditions were systematically examined in this work.
C. Yuhao +5 more
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Optimal parameters of elliptical groove gas film face seal with bidirectional rotational characteristics [PDF]
International Journal of Fluid EngineeringThe performance of gas film face seals is substantially affected by the geometric features of the texture on the seal face. To enhance the design of elliptical groove face seals for efficient bidirectional rotation, a comprehensive theoretical analysis ...
Yuansen Song +3 more
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Energies, 2020 Frequent working condition conversions in pumped-storage power stations often induce stability problems, especially when the operating point enters the S-shaped region, during which flow transitions and pressure fluctuations are serious.
Zhiyan Yang +5 more
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