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Power swing generated in Francis turbines by part load and overload instabilities

Author
Valentin, D.; Presas, A.; Egusquiza, E.; Valero, M.; Egusquiza, M.; Bossio, M.
Type of activity
Journal article
Journal
Energies
Date of publication
2017-12-13
Volume
10
Number
12
First page
2124
DOI
https://doi.org/10.3390/en10122124 Open in new window
Project funding
FP7-608532-HYPERBOLE - HYDROPOWER PLANTS PERFORMANCE AND FLEXIBLE OPERATION TOWARDS LEAN INTEGRATION OF NEW RENEWABLE ENERGIES
Repository
http://hdl.handle.net/2117/114103 Open in new window
https://www.researchgate.net/publication/321801146_Power_Swing_Generated_in_Francis_Turbines_by_Part_Load_and_Overload_Instabilities Open in new window
URL
http://www.mdpi.com/1996-1073/10/12/2124 Open in new window
Abstract
Hydropower plays a key role in the actual energy market due to its fast response and regulation capacity. In that way, hydraulic turbines are increasingly demanded to work at off-design conditions, where complex flow patterns and cavitation appear, especially in Francis turbines. The draft tube cavitation surge is a hydraulic phenomenon that appears in Francis turbines below and above its Best Efficiency Point (BEP). It is a low frequency phenomenon consisting of a vortex rope in the runner outl...
Citation
Valentin, D., Presas, A., Egusquiza, E., Valero, M., Egusquiza, M., Bossio, M. Power swing generated in Francis turbines by part load and overload instabilities. "Energies", 13 Desembre 2017, vol. 10, núm. 12.
Keywords
Draft tube, Francis turbine, Overload, Part load, Power swing, Vortex rope
Group of research
CDIF - Center for Industrial Diagnostics
FLUIDS - Fluids Engineering

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