Cécile Münch-Alligné

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Publications associées (27)

Energy production with a tubular propeller turbine

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Vlad Hasmatuchi, Cécile Münch-Alligné, Irene Almeida Samora

Micro-hydropower is a way of improving the energetic efficiency of existent water systems. In the particular case of drinking water systems, several studies have showed that pressure reducing valves can be by-passed with turbines in order to recover the di ...

2016

Simulation of energy recovery on water utility networks by a micro-turbine with counter-rotating runners

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

Wherever relief valves and other energy dissipation devices are installed to limit the pressure, water utility networks provide unexploited hydropower potentials. This is mainly due to a lack of economically viable technologies for energy recovery in the p ...

International Association For Hydraulic Research2016

Experimental characterization of a five blade tubular propeller turbine for pipe inline installation

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Vlad Hasmatuchi, Irene Almeida Samora, Cécile Münch-Alligné

The interest in micro-hydropower in existing infrastructure is increasing since this is a technology with low environmental impacts and potential for energy recovery in different types of installation. The technologies available for these schemes are still ...

Elsevier2016

Head loss coefficient through sharp-edged orifices

Anton Schleiss, Giovanni De Cesare, Cécile Münch-Alligné, Nicolas Jean François Pascal Ghislain Adam

Nowadays, high-head power plants could increase their installed power capacity for many reasons, e.g. dam heightening, increase of their peak power capacity or refurbishment with new turbines. Frequently, due to several considerations, e.g. topographical o ...

2016

Experimental evaluation of the velocity profiles and performance of a counter rotating micro-turbine by 2D laser Doppler velocimetry

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

The most exploited renewable energy at a global scale is hydropower, which nowadays accounts for the 18 % of the world’s electricity supply. Its production is expected to increase approximately 3.1% each year in the next 25 years maintaining its share in t ...

2015

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

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

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

Application of Laser Doppler Velocimetry to the development of a counter rotating micro-turbine

François Avellan, Elena Vagnoni, Loïc Andolfatto, Cécile Münch-Alligné, João Nuno Gomes Borga Delgado

The sustainability of the electricity mix can be increased by introducing recovery energy systems on existing water supply infrastructures. The concept of the new counter rotating micro-turbine presented in this work is a competitive option for energy reco ...

2015

Analytical hill chart towards the maximisation of energy recovery on water utility networks with counter rotating micro-turbine

François Avellan, Elena Vagnoni, Loïc Andolfatto, Cécile Münch-Alligné, João Nuno Gomes Borga Delgado

Existing water utility networks provides a wide, distributed and unexploited hydropower potential. The installation of energy recovery stations on existing infrastructures limits both the required investment and the environmental impact. The counter-rotati ...

2015

Mind the gap: a new insight into the tip leakage vortex using stereo-PIV

Mohamed Farhat, Matthieu Dreyer, Cécile Münch-Alligné

The tip leakage vortex (TLV), which develops in the clearance between the rotor and the stator of axial hydro turbines, has been studied for decades. Yet, many associated phenomena are still not understood. For instance, it remains unclear how the clearanc ...

Springer2014

Psamathe – Alternatives Konzept der Entsanderspülung

Giovanni De Cesare, Sebastian Schwindt, Cécile Münch-Alligné, Milad Daneshvari

Die vollständige Spülung von Dufour-Sandfängen geht einher mit erheblichen Verlusten des Triebwassers, wodurch der Anlagenertrag geschmälert wird. Die Effizienz eines neuartigen Spülsystems wird durch numerische Simulationen anhand einer Fallstudie eines D ...

Springer Vieweg-Springer Fachmedien Wiesbaden Gmbh2014

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