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PEOPLE@HES-SO - Verzeichnis der Mitarbeitenden und Kompetenzen
PEOPLE@HES-SO - Verzeichnis der Mitarbeitenden und Kompetenzen

PEOPLE@HES-SO
Verzeichnis der Mitarbeitenden und Kompetenzen

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Chevailler Samuel

Chevailler Samuel

Professeur-e HES Associé-e

Hauptkompetenzen

Machines électriques

Entraînements électriques

Simulations électromagnétiques

Motor design

  • Kontakt

  • Lehre

  • Publikationen

  • Konferenzen

Hauptvertrag

Professeur-e HES Associé-e

Telefon-Nummer: +41 58 606 87 56

Büro: ENP.23.N414

HES-SO Valais-Wallis - Haute Ecole d'Ingénierie
Rue de l'Industrie 23, 1950 Sion, CH
HEI - VS
Bereich
Technique et IT
Hauptstudiengang
Systèmes industriels
Institut
Institut Systèmes industriels
BSc HES-SO en Systèmes industriels - HES-SO Valais-Wallis - Haute Ecole d'Ingénierie
  • Eoliennes
  • Electricité 2
  • mécatronique
  • Entraînements électriques

2021

DuoTurbo :
Wissenschaftlicher Artikel ArODES
implementation of a counter-rotating hydroturbine for energy recovery in drinking water networks

Daniel Biner, Vlad Hasmatuchi, Laurent Rapillard, Samuel Chevailler, François Avellan, Cécile Münch-Alligné

Sustainability,  2021, vol. 13, no. 19, article no. 10717

Link zur Publikation

Zusammenfassung:

To enhance the sustainability of water supply systems, the development of new technologies for micro scale hydropower remains an active field of research. The present paper deals with the implementation of a new micro-hydroelectric system for drinking water facilities, targeting a gross capacity between 5 kW and 25 kW. A counter-rotating microturbine forms the core element of the energy recovery system. The modular in-line technology is supposed to require low capital expenditure, targeting profitability within 10 years. One stage of the DuoTurbo microturbine is composed of two axial counter-rotating runners, each one featured with a wet permanent magnet rim generator with independent speed regulation. This compact mechanical design facilitates the integration into existing drinking water installations. A first DuoTurbo product prototype is developed by means of a Computational Fluid Dynamics based hydraulic design along with laboratory tests to assess system efficiency and characteristics. The agreements between simulated and measured hydraulic characteristics with absolute errors widely below 5% validate the design approach to a large extent. The developed product prototype provides a maximum electrical power of 6.5 kW at a maximum hydraulic head of 75 m, reaching a hydroelectric peak efficiency of 59%. In 2019, a DuoTurbo pilot was commissioned at a drinking water facility to assess its long-term behavior and thus, to validate advanced technology readiness levels. To the best of the authors knowledge, it is the first implementation of a counter-rotating microturbine with independent runner speed regulation and wet rim generators in a real-world drinking water facility. A complete year of operation is monitored without showing significant drifts of efficiency and vibration. The demonstration of the system in operational environment at pre-commercial state is validated that can be attributed to a technology readiness level of 7. The overall results of this study are promising regarding further industrialization steps and potential broad-scale applicability of the DuoTurbo microturbine in the drinking water industry.

Transport économique et innovant en Suisse
Professioneller Artikel ArODES

Vincent Bourquin, Samuel Chevailler

bulletin.ch = Fachzeitschrift und Verbandsinformationen von Electrosuisse und VSE = Bulletin SEV/AES : revue spécialisée et informations des associations Electrosuisse et AES,  2021, no. 4, pp. 40-43

Link zur Publikation

Zusammenfassung:

Comment la recherche appliquée peut contribuer au développement durable du transport ? Alors que la scène internationale voit plusieurs innovations en transport se développer, la Haute école spécialisée de Suisse occidentale (HES-SO) a décidé de soutenir un groupe de travail afin de développer les outils, méthodologies et connaissances pour adapter ces concepts à la Suisse.

2016

Engineering & performance of DuoTurbo :
Wissenschaftlicher Artikel ArODES
microturbine with counter-rotating runners

Daniel Biner, Vlad Hasmatuchi, S. Richard, Samuel Chevailler, Loïc Andolfatto, François Avellan, Cécile Münch-Alligné

IOP Conference Series: Earth and Environmental Science,  2016, vol. 49, article no. 102013

Link zur Publikation

Zusammenfassung:

Considering the nuclear phase-out strategy of several European countries and the future tendency to promote renewable energies, the exploitation of small hydropower sites (<10 MW) becomes increasingly important. In this framework DuoTurbo Turbine, a new DuoTurbo-microturbine prototype for drinking water networks has been jointly developed by the HES-SO Valais//Wallis, the EPFL-Laboratory for Hydraulic Machines and industrial partners. The modular in-line "plug & play" technology requires low investment, reaching economic feasibility with an available power between 5 kW and 25 kW. One stage of the microturbine consists of two axial counter-rotating runners that form a compact independent unit. Each runner of the turbine holds its own rim generator, the DuoTurbo-configuration involving that each hydraulic runner is integral with each electrical rotor. The possibility of stacking several stages in series enables covering quite a wide range of hydraulic power and, thus, recovering a maximum of energy dissipated in release valves of water supply systems. The present work introduces the global concept of the implemented prototype of the DuoTurbo-microturbine, to target a maximal injected power of 5 kW for a discharge of 9 l/s and a head of 24.5 m per stage. The main features of the hydraulic, the mechanical, the electrical and the electronic design are presented. The hydraulic performance is, then, assessed using CFD simulations for the expected operating range. Finally, the performance measurements of the single-stage prototype installed in the hydraulic test rig of the HES-SO Valais//Wallis are presented.

2024

Comparison of permanent magnet configurations of an electrodynamic suspension integrated in a small-scale test vehicle
Konferenz ArODES

Louis Beauloye, David Melly, Samuel Chevailler, Bruno Dehez

Proceedings of Maglev 2024, 18-22 September 2024, Malmö, Sweden

Link zur Konferenz

Zusammenfassung:

Electrodynamic suspensions are well-suited for high-speed maglev systems. This paper optimizes and compares two configurations of permanent magnets of such suspension integrated in a small-scale test vehicle. The first one is the Halbach array, classically used for the high magnetic flux density it generates, whereas the second one is the simpler alternance of magnetic poles. Through the optimization of the lift-to-drag ratio and the mass of the suspension, it is shown that both configurations can have similar performances. The Halbach array has a lower overall mass but a higher permanent magnet volume and therefore cost. A portion of the additional weight of the alternate arrangement can be gained by reducing its back-iron thickness and removing materials at the center of the magnetic poles.

2023

Design and simulation of the electrodynamic suspension of an hyperloop test vehicle
Konferenz ArODES

Maude Fumeaux, Maxence Cailleteau, David Melly, Samuel Chevailler, Joël Cugnoni

Proceedings of the 2023 14th International Symposium on Linear Drivers for Industry Applications (LDIA)

Link zur Konferenz

Zusammenfassung:

This paper deals with the electromagnetic design of a small vehicle designed to be tested in a dedicated vacuum tube. As imposed by the facilities in the tube, the guidance must be passive. Its design is therefore highly dependent on the vehicle dynamic behaviour to ensure that it remains within the limits of its guidance zone. The guidance and levitation are provided by an electrodynamic suspension (EDS) done with a Halbach array interacting with a conductive track. This article mainly focuses on its design and its influence on the dynamic behaviour of the vehicle.

2017

Design of a PM-generator for a straight flow counter-rotating micro-hydro turbine
Konferenz ArODES

Domenico Violante, Cécile Münch-Alligné, Samuel Chevailler, Lucas Farner

Proceedings of 2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 11-14 September 2017, Warsaw, Poland

Link zur Konferenz

Zusammenfassung:

This paper presents the design and the measurement of two identical PM-generators driven by an axial counter-rotating micro-turbine, called DuoTurbo-microturbine. This prototype for drinking water networks has been jointly developed by the HES-SO Valais//Wallis, the EPFL-Laboratory for Hydraulic Machines and industrial partners. The modular in-line “plug & play” technology requires low investment, reaching economic feasibility with an available power between 5 kW and 25 kW. One stage of the microturbine consists of two axial counter-rotating runners that form a compact independent unit. Each runner of the turbine holds its own rim generator, the DuoTurbo-configuration involving that each hydraulic runner is integral with each electrical rotor [1].

2014

Development of a PM-generator for a counter-rotating micro-hydro turbine
Konferenz ArODES

David Melly, Rodolfo Horta, Cécile Münch-Alligné, Hans-Peter Biner, Samuel Chevailler

Proceedings of the 2014 International Conference on Electrical Machines (ICEM), 2-5 September 2014, Berlin, Germany

Link zur Konferenz

Zusammenfassung:

Nowadays, a great effort is done to find new alternative renewable energy sources to replace part of nuclear energy production. In this context, this paper presents a new axial counter-rotating turbine for small-hydro applications which is developed to recover the energy lost in release valves of water supply. The design of the two PM-generators, their mechanical integration in a bulb placed into the water conduit and the AC-DC Vienna converter developed for these turbines are presented. The sensorless regulation of the two generators is also briefly discussed. Finally, measurements done on the 2-kW prototype are analyzed and compared with the simulation.

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