Publications associées à Turbine Pelton

GPU-accelerated Pelton turbine simulation using finite volume particle method coupled with linear eddy viscosity models

François Avellan, Ebrahim Jahanbakhsh, Audrey Paulette Solange Maertens, Sebastián Camilo Leguizamón Sarmiento, Siamak Alimirzazadeh, Takashi Kumashiro

The numerical investigation of the unsteady flow patterns around a Pelton bucket can be helpful to improve the overall turbine efficiency by optimizing the bucket design based on identified loss mechanisms. Since the flow is highly turbulent, modeling the ...

IOP PUBLISHING LTD2019

Experimental and numerical investigations of a high-head pumped-storage power plant at speed no-load

François Avellan, Pedro Filipe De Almeida Manso, Cécile Münch-Alligné, Vlad Hasmatuchi

Due to the increasing integration of new renewable energies, the electrical grid undergoes more frequent instabilities. Hydroelectric power plants, particularly pumped storage plants, are well suited for grid control. However, this objective requires exten ...

IOP PUBLISHING LTD2019

Numerical analysis for detecting head losses in trifurcations of high head in hydropower plants

François Avellan, Ramiro Gustavo Ramirez Camacho

Many different types of branching have been developed, such as bifurcation, trifurcation, and manifolds, among others. These configurations are used in penstocks to transport water from surge tanks to power houses in order to feed several turbines at the s ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Multiscale Modeling and Simulation of Erosive Wear in Pelton Turbines

Sebastián Camilo Leguizamón Sarmiento

Hydropower has been identified as a key technology to mitigate climate change due to its very low lifecycle greenhouse gas emission intensity and its capacity to integrate intermittent renewable energy sources such as wind and solar into the electrical gri ...

EPFL2019

Dynamic modal analysis during reduced scale model tests of hydraulic turbines for hydro-acoustic characterization of cavitation flows

François Avellan, Arthur Tristan Favrel, Christian Landry, Joao Gomes Pereira Junior

Francis turbines operating at off-design conditions experience the development of unfavourable cavitation flows in the draft tube at the runner outlet, which induce pressure pulsations and hydro-acoustic resonances in the worst cases. The assessment of hyd ...

2019

Analysis of emerging technologies in the hydropower sector

François Avellan

The paper reviews recent research and development activities in the field of hydropower technology. It covers emerging and advanced technologies to mitigate flow instabilities (active and passive approach) as well as emerging magneto-rheological control te ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Toward design optimization of a Pelton turbine runner

François Avellan, Loïc Andolfatto, Christian Vessaz, Christophe Tournier

The objective of the present paper is to propose a strategy to optimize the performance of a Pelton runner based on a parametric model of the bucket geometry, massive particle based numerical simulations and advanced optimization strategies to reduce the d ...

Springer Verlag2017

Fluid-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 ...

Elsevier2017

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Turbine Pelton

GPU-accelerated Pelton turbine simulation using finite volume particle method coupled with linear eddy viscosity models

Experimental and numerical investigations of a high-head pumped-storage power plant at speed no-load

Numerical analysis for detecting head losses in trifurcations of high head in hydropower plants

Multiscale Modeling and Simulation of Erosive Wear in Pelton Turbines

Dynamic modal analysis during reduced scale model tests of hydraulic turbines for hydro-acoustic characterization of cavitation flows

Analysis of emerging technologies in the hydropower sector

Toward design optimization of a Pelton turbine runner

Fluid-structure interaction mechanisms leading to dangerous power swings in Francis turbines at full load

Engineering & Performance of DuoTurbo: Microturbine with Counter-Rotating Runners

Finite Particle Flow Simulation of Free Jet Deviation by Rotating Pelton Buckets

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Chattez avec Graph Search

Numerical analysis for detecting head losses in trifurcations of high head in hydropower plants

Fluid-structure interaction mechanisms leading to dangerous power swings in Francis turbines at full load

Dynamic modal analysis during reduced scale model tests of hydraulic turbines for hydro-acoustic characterization of cavitation flows

Analysis of emerging technologies in the hydropower sector

Toward design optimization of a Pelton turbine runner

Engineering & Performance of DuoTurbo: Microturbine with Counter-Rotating Runners

Finite Particle Flow Simulation of Free Jet Deviation by Rotating Pelton Buckets

Experimental and numerical investigations of a high-head pumped-storage power plant at speed no-load

GPU-accelerated Pelton turbine simulation using finite volume particle method coupled with linear eddy viscosity models

Multiscale Modeling and Simulation of Erosive Wear in Pelton Turbines