Publication
Experimental and numerical investigations of a high-head pumped-storage power plant at speed no-load
Publications associées (37)
URANS Models for the Simulation of Full Load Pressure Surge in Francis Turbines Validated by Particle Image Velocimetry
François Avellan, Arthur Tristan Favrel
Due to the penetration of alternative renewable energies, the stabilization of the electrical power network relies on the off-design operation of turbines and pump-turbines in hydro-power plants. The occurrence of cavitation is however a common phenomenon ...
American Society of Mechanical Engineers2017Fluid-structure interaction mechanisms leading to dangerous power swings in Francis turbines at full load
François Avellan, Arthur Tristan Favrel, Christian Landry
Hydropower plants play an important regulatory role in the large scale integration of volatile renewable energy sources into the existing power grid. This duty however requires a continuous extension of their operating range, provoking the emergence of com ...
Elsevier2017Hydrodynamics of Francis turbine operation at deep part load condition
The electrical energy production from New and Renewable Energy (NRE) sources have become increasingly important in the past decades. However, intermittent electrical generation from NRE sources due to their stochastic nature often prevents stable power out ...
EPFL2017RANS computations for identification of 1-D cavitation model parameters: application to full load cavitation vortex rope
François Avellan, Christophe Nicolet, Andres Müller, Sébastien Alligné
Due to the massive penetration of alternative renewable energies, hydropower is a key energy conversion technology for stabilizing the electrical power network by using hydraulic machines at off design operating conditions. At full load, the axisymmetric c ...
2017Assessment of Power Swings in Hydropower Plants Through High-Order Modeling and Eigenanalysis
Christophe Nicolet, Basile Kawkabani, Pedro Camilo de Oliveira e Silva
POWER plants are subject to introduce disturbances in the power grid, resulting from interactions with the dynamical behavior of the energy source subsystem. In the case of hydropower plants when used to compensate for variations of power generation and co ...
2017Dynamics of the cavitation precessing vortex rope for Francis turbines at part load operating conditions
The massive penetration of the existing electrical grid by renewable energy sources requires a continuous extension of the operating range of hydroelectric powerplants, which can lead to cavitation flow instabilities inducing undesirable mechanical vibrati ...
EPFL2016LDV survey of cavitation and resonance effect on the precessing vortex rope dynamics in the draft tube of Francis turbines
François Avellan, Arthur Tristan Favrel, Christian Landry, Keita Yamamoto
The large-scale penetration of the electrical grid by intermittent renewable energy sources requires a continuous operating range extension of hydropower plants. This causes the formation of unfavourable flow patterns in the draft tube of turbines and pump ...
Springer Verlag2016RANS computations for identification of 1-D cavitation model parameters: application to full load cavitation vortex rope
François Avellan, Christophe Nicolet, Andres Müller, Sébastien Alligné
Due to the massive penetration of alternative renewable energies, hydropower is a key energy conversion technology for stabilizing the electrical power network by using hydraulic machines at off design operating conditions. At full load, the axisymmetric c ...
International Association For Hydraulic Research2016Assessment of Power Swings in Hydropower Plants through High-Order Modelling and Eigenanalysis
Basile Kawkabani, Pedro Camilo de Oliveira e Silva
Power plants are subject to introduce disturbances in the power grid, resulting from interactions with the dynamical behavior of the energy source subsystem. In the case of hydropower plants when used to compensate for variations of power generation and co ...
IEEE2016Numerical and experimental evidence of the inter-blade cavitation vortex development at deep part load operation of a Francis turbine
François Avellan, Arthur Tristan Favrel, Christian Landry, Andres Müller, Keita Yamamoto
Francis turbines are subject to various types of the cavitation flow depending on the operating condition s. In order to compensate for the stochastic nature of renewable energy sources, it is more and more required to extend the operating range of the gen ...
International Association For Hydraulic Research2016