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 …

Fatigue life estimation of Francis turbines based on experimental strain measurements: Review of the actual data and future trends

A Presas, Y Luo, Z Wang, B Guo - Renewable and Sustainable Energy …, 2019 - Elsevier
Due to the massive entrance of new renewable energies such as wind or solar, hydraulic
turbines have to work far from its designed point and withstanding multiple transients, such …

A review on fluid structure interaction in hydraulic turbines: A focus on hydrodynamic damping

C Trivedi - Engineering Failure Analysis, 2017 - Elsevier
Hydraulic turbines include stationary and rotating components. The interaction of the
components, mainly between the runner blades and distributor vanes, is critical when 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 …

[HTML][HTML] 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 …

[HTML][HTML] A review of PZT patches applications in submerged systems

A Presas, Y Luo, Z Wang, D Valentin, M Egusquiza - Sensors, 2018 - mdpi.com
Submerged systems are found in many engineering, biological, and medicinal applications.
For such systems, due to the particular environmental conditions and working medium, the …

Dynamic analysis of a pumped-storage hydropower plant with random power load

H Zhang, D Chen, B Xu, E Patelli, S Tolo - Mechanical Systems and Signal …, 2018 - Elsevier
This paper analyzes the dynamic response of a pumped-storage hydropower plant in
generating mode. Considering the elastic water column effects in the penstock, a linearized …

Characteristics and factors of mode families of axial turbine runner

X Xia, H Luo, S Li, F Wang, L Zhou, Z Wang - International Journal of …, 2023 - Elsevier
Axial turbines are widely used in hydropower systems. Owing to the complex hydraulic
excitation force during operation, its flow-passing components, particularly the runner, are …

[HTML][HTML] Extension of operating range in pump-turbines. influence of head and load

C Valero, M Egusquiza, E Egusquiza, A Presas… - Energies, 2017 - mdpi.com
Due to the increasing share of new renewable energies like wind and solar in the
generation of electricity the need for power regulation and energy storage is becoming of …

[HTML][HTML] Feasibility of detecting natural frequencies of hydraulic turbines while in operation, using strain gauges

D Valentín, A Presas, M Bossio, M Egusquiza… - Sensors, 2018 - mdpi.com
Nowadays, hydropower plays an essential role in the energy market. Due to their fast
response and regulation capacity, hydraulic turbines operate at off-design conditions with a …