A review of available methods for the assessment of fluid added mass, dam**, and stiffness with an emphasis on hydraulic turbines

AS Dehkharqani, JO Aidanpää… - Applied …, 2018 - asmedigitalcollection.asme.org
Fluid added mass, dam**, and stiffness are highly relevant parameters to consider when
evaluating the dynamic response of a submerged structure in a fluid. The prediction of these …

Analysis of the vortices in the inner flow of reversible pump turbine with the new omega vortex identification method

Y Zhang, K Liu, J Li, H **an, X Du - Journal of Hydrodynamics, 2018 - Springer
Reversible pump turbines are widely employed in the pumped hydro energy storage power
plants. The frequent shifts among various operational modes for the reversible pump …

Nonlinear dynamic analysis and robust controller design for Francis hydraulic turbine regulating system with a straight-tube surge tank

J Liang, X Yuan, Y Yuan, Z Chen, Y Li - Mechanical Systems and Signal …, 2017 - Elsevier
The safety and stability of hydraulic turbine regulating system (HTRS) in hydropower plants
become increasingly important since the rapid development and the broad application of …

Instabilities and influence of geometric parameters on the efficiency of a pump operated as a turbine for micro hydro power generation: A review

J Graciano-Uribe, J Sierra… - Journal of Sustainable …, 2021 - hrcak.srce.hr
Sažetak Compared to a traditional turbine (Kaplan, Francis, Pelton), pumps operated as
turbine are a good alternative for micro hydroelectric power plants thanks to their low cost …

Nonlinear modeling and dynamic analysis of a hydro-turbine governing system in the process of sudden load increase transient

H Li, D Chen, H Zhang, F Wang, D Ba - Mechanical Systems and Signal …, 2016 - Elsevier
In order to study the nonlinear dynamic behaviors of a hydro-turbine governing system in the
process of sudden load increase transient, we establish a novel nonlinear dynamic model of …

Study on laser cladding remanufacturing process with FeCrNiCu alloy powder for thin-wall impeller blade

X Lei, C Huajun, L Hailong, Z Yubo - The International Journal of …, 2017 - Springer
The centrifugal compressor impeller is widely used in petroleum, chemicals, and other fields
and is liable to failure in complicated working environment. Laser cladding as an advanced …

Accurate determination of the frequency response function of submerged and confined structures by using PZT-patches

A Presas, D Valentin, E Egusquiza, C Valero… - Sensors, 2017 - mdpi.com
To accurately determine the dynamic response of a structure is of relevant interest in many
engineering applications. Particularly, it is of paramount importance to determine the …

Influence of rotation on the modal characteristics of a bulb turbine unit rotor

J Cao, Y Luo, A Presas, SH Ahn, Z Wang, X Huang… - Renewable Energy, 2022 - Elsevier
Bulb turbine units are one of the most installed turbines in run-of river projects with relatively
low head. In order to enlarge the useful life of these turbines and avoid fatigue problems and …

Advanced condition monitoring of Pelton turbines

M Egusquiza, E Egusquiza, C Valero, A Presas… - Measurement, 2018 - Elsevier
The ability of hydropower to adapt the electricity generation to the demand is necessary to
integrate wind and solar energy into the electrical grid. Nowadays, hydropower turbines are …

Evolutions of pressure fluctuations and runner loads during runaway processes of a pump-turbine

L **a, Y Cheng, Z Yang, J You… - Journal of Fluids …, 2017 - asmedigitalcollection.asme.org
The pressure fluctuations and runner loads on a pump-turbine runner during runaway
process are very violent and the corresponding flow evolution is complicated. To study these …