[HTML][HTML] Analysis of emerging technologies in the hydropower sector
The paper reviews recent research and development activities in the field of hydropower
technology. It covers emerging and advanced technologies to mitigate flow instabilities …
technology. It covers emerging and advanced technologies to mitigate flow instabilities …
Review of hydrodynamics instabilities in Francis turbine during off-design and transient operations
Electricity generation from solar and wind has raised a significant concern about the stability
of grid networks. Hydroelectricity plays an important role to balance the stability of grid …
of grid networks. Hydroelectricity plays an important role to balance the stability of grid …
Numerical simulation and experimental study on the comparison of the hydraulic characteristics of an axial-flow pump and a full tubular pump
L Shi, W Zhang, H Jiao, F Tang, L Wang, D Sun… - Renewable Energy, 2020 - Elsevier
An axial-flow pump impeller is designed on the basis of plane cascade theory, which is
based on surface element method, to study the influence of impeller rotor on the hydraulic …
based on surface element method, to study the influence of impeller rotor on the hydraulic …
Unstable pressure fluctuations in the vaneless space of high-head reversible pump-turbines–a systematic review
In the high-head reversible pump-turbines, the most unfavourable hydraulic instability is the
unstable pressure fluctuations in the vaneless space caused by interactions between the …
unstable pressure fluctuations in the vaneless space caused by interactions between the …
Numerical simulation and experimental study of transient characteristics in an axial flow pump during start-up
In order to explore the impact load and instantaneous fluid pressure of transient flow on
pump station system under the nonregulative operating conditions, the transient …
pump station system under the nonregulative operating conditions, the transient …
Fluid-structure interactions in Francis turbines: A perspective review
C Trivedi, MJ Cervantes - Renewable and Sustainable Energy Reviews, 2017 - Elsevier
Competitive electricity prices and reduced profit margins have forced hydraulic turbines to
operate under critical conditions. The demand for extended operating ranges and the high …
operate under critical conditions. The demand for extended operating ranges and the high …
A new draft tube shape optimisation methodology of introducing inclined conical diffuser in hydraulic turbine
X Zhou, H Wu, L Cheng, Q Huang, C Shi - Energy, 2023 - Elsevier
A grid-connected integrated system incorporating cascade hydropower, solar/photovoltaic,
and wind power requires a hydraulic turbine to operate frequently under off-design …
and wind power requires a hydraulic turbine to operate frequently under off-design …
Investigation methods for analysis of transient phenomena concerning design and operation of hydraulic-machine systems—A review
Over the past decade, the use of conventional one-dimensional numerical-simulation
methods has been demonstrated to be inadequate in terms of their usefulness in …
methods has been demonstrated to be inadequate in terms of their usefulness in …
Evolution mechanism of a prototype pump turbine after pump power-off
D Li, X Fu, H Wang, R Zhao, X Wei - Physics of Fluids, 2021 - pubs.aip.org
This study aimed to analyze the time–frequency characteristics of pressure fluctuations and
reveal their underlying flow mechanisms during the unavoidable guide vane closing process …
reveal their underlying flow mechanisms during the unavoidable guide vane closing process …
Analysis of unsteady internal flow characteristics in axial pump with varying number of blades using computational modelling and vibration techniques
AR Al-Obaidi, J Alhamid - Flow Measurement and Instrumentation, 2024 - Elsevier
Axial pumps were extensively applied in many varying applications because of their large
flow and low head. In this research investigation, the comparative analysis of the findings …
flow and low head. In this research investigation, the comparative analysis of the findings …