Publications associées à Blade Runner (film)

On the prediction of the induced damage by the start-up sequence of Francis turbines: On operational resilience framework

Mario Paolone, Christophe Nicolet, Elena Vagnoni, Martin Seydoux

The number of transient operations in hydraulic machinery connected to power grid, notably start-ups and shut-downs, has observed a substantial increase in recent decades, primarily driven by the global shift toward intermittent renewable energy sources. S ...

2024

The influence of splitter blades and meridional profiles on the performance of small-scale turbopumps for ORC applications; analysis, neural network modeling and optimization

Jürg Alexander Schiffmann, Sajjad Zakeralhoseini

This work presents the influence of splitters on the performance of small-scale turbopumps for organic Rankine cycle applications numerically. Different design parameters, such as impeller diameter at the outlet, number of blades, blade angle at the traili ...

2023

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

Physical Mechanism of Interblade Vortex Development at Deep Part Load Operation of a Francis Turbine

François Avellan, Arthur Tristan Favrel, Keita Yamamoto

For seamless integration of growing electricity production from intermittent renewable energy sources, Francis turbines are under increasing demand to extend their operating range. This requires Francis turbines to operate under off-design conditions, wher ...

ASME2019

Actuation Displacement Analysis of a Self-Switching Shape Memory Alloy Buckled Beam

Yves Perriard, Yoan René Cyrille Civet, Morgan Almanza, Sean Thomas

This paper aims to simulate using Finite Element Modelling (FEM), a self-activating bistable buckled beam actuator using SMAs. In this work, various parameters such as the dimensions of the beam, shape geometry are studied to determine their effects on the ...

2018

Mechanical impact of dynamic phenomena in Francis turbines at off design conditions

François Avellan, Arthur Tristan Favrel

At partial load and overload conditions, Francis turbines are subjected to hydraulic instabilities that can potentially result in high dynamic solicitations of the turbine components and significantly reduce their lifetime. This study presents both experim ...

2017

Fabrication of flexible blade models from a silicone-based polymer to test the effect of surface corrugations on drag and blade motion

Pedro Miguel Nunes Pereira de Almeida Reis

Macrocystis blades develop longitudinal corrugations in regions with strong current and wave action. This study examined the effect of corrugations on blade motion and blade drag by constructing flexible blades with different corrugation amplitude and a co ...

Association for the Sciences of Limnology and Oceanography2015

A mixed standard/custom design strategy to minimize cost and maximize efficiency for picohydro power potential harvesting

François Avellan, Elena Vagnoni, Cécile Münch-Alligné, Loïc Andolfatto

Harvesting the numerous small scale hydroelectric potential is a way to increase the sustainable hydraulic energy production in developed countries. The condition to meet economical profitability with pico power stations - below 25 kW - is to minimize the ...

2015

Pressure measurements and high speed visualizations of the cavitation phenomena at deep part load condition in a Francis turbine

François Avellan, Arthur Tristan Favrel, Christian Landry, Andres Müller, Keita Yamamoto

In a hydraulic power plant, it is essential to provide a reliable, sustainable and flexible energy supply. In recent years, in order to cover the variations of the renewable electricity production, hydraulic power plants are demanded to operate with more e ...

IOP Publishing Ltd2014

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Blade Runner (film)

On the prediction of the induced damage by the start-up sequence of Francis turbines: On operational resilience framework

The influence of splitter blades and meridional profiles on the performance of small-scale turbopumps for ORC applications; analysis, neural network modeling and optimization

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

Physical Mechanism of Interblade Vortex Development at Deep Part Load Operation of a Francis Turbine

Actuation Displacement Analysis of a Self-Switching Shape Memory Alloy Buckled Beam

Hydrodynamics of Francis turbine operation at deep part load condition

Mechanical impact of dynamic phenomena in Francis turbines at off design conditions

Fabrication of flexible blade models from a silicone-based polymer to test the effect of surface corrugations on drag and blade motion

A mixed standard/custom design strategy to minimize cost and maximize efficiency for picohydro power potential harvesting

Pressure measurements and high speed visualizations of the cavitation phenomena at deep part load condition in a Francis turbine

Graph Chatbot

Chattez avec Graph Search

On the prediction of the induced damage by the start-up sequence of Francis turbines: On operational resilience framework

The influence of splitter blades and meridional profiles on the performance of small-scale turbopumps for ORC applications; analysis, neural network modeling and optimization

Hydrodynamics of Francis turbine operation at deep part load condition

Physical Mechanism of Interblade Vortex Development at Deep Part Load Operation of a Francis Turbine

A mixed standard/custom design strategy to minimize cost and maximize efficiency for picohydro power potential harvesting

Actuation Displacement Analysis of a Self-Switching Shape Memory Alloy Buckled Beam

Mechanical impact of dynamic phenomena in Francis turbines at off design conditions

Pressure measurements and high speed visualizations of the cavitation phenomena at deep part load condition in a Francis turbine

Fabrication of flexible blade models from a silicone-based polymer to test the effect of surface corrugations on drag and blade motion