Publications related to Water turbine

Improving frequency containment reserve provision in run-of-river hydropower plants

Mario Paolone, Elena Vagnoni, Francesco Gerini

The paper presents a model-based control strategy for optimal asset management of hydroelectric units in run-of-river hydropower plants. The proposed control strategy aims to operate the unit at the best efficiency while improving water flow management and ...

2021

Numerical investigation on the volute cutwater for pumps running in turbine mode

Elena Vagnoni, Alessandro Morabito

The hydropower sector has recently raised the interest in pump as turbine (PaT) that can be a valid trade-off between capital cost and performance in micro-scale installations. Nevertheless, the modest efficiency of PaTs often restricts their exploitation. ...

PERGAMON-ELSEVIER SCIENCE LTD2021

Investigation of the Time Resolution Set Up Used to Compute the Full Load Vortex Rope in a Francis Turbine

François Avellan, Cécile Münch-Alligné, Arthur Tristan Favrel, Andres Müller

The flow in a Francis turbine at full load is characterised by the development of an axial vortex rope in the draft tube. The vortex rope often promotes cavitation if the turbine is operated at a sufficiently low Thoma number. Furthermore, the vortex rope ...

2021

GPU-accelerated numerical analysis of jet interference in a six-jet Pelton turbine using Finite Volume Particle Method

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

The Pelton turbine is an impulse turbine typically installed for high head hydroelectric power plants. For a site with a rated head H and discharge Q, a higher specific speed turbine results in a more compact generating unit with reduced manufacturing cost ...

2020

Open-Source Implementation and Validation of a 3D Inverse Design Method for Francis Turbine Runners

François Avellan, Sebastián Camilo Leguizamón Sarmiento

The hydraulic design of Francis turbines and pump-turbines is an expensive project-specific engineering effort that typically involves a direct iterative exploration of the design space. An inverse design method for turbomachinery has been previously intro ...

2020

Transposition of the mechanical behavior from model to prototype of Francis turbines

François Avellan, Joao Gomes Pereira Junior, Eduard Egusquiza

Hydropower is nowadays essential for balancing the electrical grid providing flexibility and fast response. The role of hydraulic turbines has changed from working at their Best Efficiency Point (BEP) to work in the whole operating range when demanded. Fra ...

2020

Swirl number based transposition of flow-induced mechanical stresses from reduced scale to full-size Francis turbine runners

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

At part load conditions, Francis turbines are subject to the emergence of a hydrodynamic instability in their draft tube, referred to as precessing vortex rope. It induces pressure pulsations in the water passages at the precession frequency of the vortex, ...

2020

Computational parametric analysis of the design of cross-flow turbines under constraints

François Avellan, Sebastián Camilo Leguizamón Sarmiento

The cross-flow turbine is an attractive technology for small-scale hydropower generation thanks to its low capital cost and relatively high efficiency even under partial discharge operating conditions. It has been proposed that this kind of turbine can be ...

PERGAMON-ELSEVIER SCIENCE LTD2020

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Water turbine

Improving frequency containment reserve provision in run-of-river hydropower plants

Numerical investigation on the volute cutwater for pumps running in turbine mode

Investigation of the Time Resolution Set Up Used to Compute the Full Load Vortex Rope in a Francis Turbine

Experimental investigation of sequential narrow impingement channels for turbine cooling

GPU-accelerated numerical analysis of jet interference in a six-jet Pelton turbine using Finite Volume Particle Method

Open-Source Implementation and Validation of a 3D Inverse Design Method for Francis Turbine Runners

Transposition of the mechanical behavior from model to prototype of Francis turbines

Swirl number based transposition of flow-induced mechanical stresses from reduced scale to full-size Francis turbine runners

Computational parametric analysis of the design of cross-flow turbines under constraints

Dynamic behaviour of a Francis turbine during voltage regulation in the electrical power system

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Chat with Graph Search

Numerical investigation on the volute cutwater for pumps running in turbine mode

Open-Source Implementation and Validation of a 3D Inverse Design Method for Francis Turbine Runners

Swirl number based transposition of flow-induced mechanical stresses from reduced scale to full-size Francis turbine runners

Dynamic behaviour of a Francis turbine during voltage regulation in the electrical power system

Experimental investigation of sequential narrow impingement channels for turbine cooling

Investigation of the Time Resolution Set Up Used to Compute the Full Load Vortex Rope in a Francis Turbine

Computational parametric analysis of the design of cross-flow turbines under constraints

Improving frequency containment reserve provision in run-of-river hydropower plants

GPU-accelerated numerical analysis of jet interference in a six-jet Pelton turbine using Finite Volume Particle Method

Transposition of the mechanical behavior from model to prototype of Francis turbines