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PEOPLE@HES-SO – Annuaire et Répertoire des compétences
PEOPLE@HES-SO – Annuaire et Répertoire des compétences

PEOPLE@HES-SO
Annuaire et Répertoire des compétences

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Donato Laurent

Donato Laurent

Professeur HES ordinaire/Co-responsable d'institut

Compétences principales

Gestion de projets

Conception

PLM

Développement de produits innovants

Qualité de l'enseignement supérieur

Assurance Qualité

  • Contact

  • Enseignement

  • Conférences

Contrat principal

Professeur HES ordinaire/Co-responsable d'institut

Téléphone: +41 26 429 66 77

Bureau: HEIA_D10.09

Haute école d'ingénierie et d'architecture de Fribourg
Boulevard de Pérolles 80, 1700 Fribourg, CH
HEIA-FR

Responsable Qualité

Téléphone: +41 26 429 66 77

Bureau: D10.09

HES-SO Fribourg Direction
Route des Arsenaux 16a, 1700 Fribourg, CH
DG-FR
MSc HES-SO en Integrated Innovation for Product and Business Development - Innokick - HES-SO Master
  • Méthode d'innovation (TRIZ)
MSc HES-SO en Engineering - HES-SO Master
  • Innovation de produits et PLM
BA HES-SO en Architecture - Haute école d'ingénierie et d'architecture de Fribourg
  • Gestion de projet
  • Conception

2018

Digital twin using Siemens PLCS and PLM software :
Conférence ArODES
a manufacturing material system case study

David Guerra-Zubiaga, Steven Moser, Michael Fyfe, Sebastien Desarzens, Laurent Donato

Proceedings of the International Mechanical Engineering Congress & Exposition, IMECE 2018, 9-15 November 2018, Pittsburgh, PA, USA

Lien vers la conférence

Résumé:

In this paper a digital twin of a manufacturing material system will be built in Tecnomatix-Siemens PLM (Product Life-cycle Management) software. The virtual cell will interact with a Programmable Logic Controller (PLC), specifically the Siemens S7-1500 Digital manufacturing tools are important new technologies to support the creation of complex manufacturing processes. The present work will guide not only the creation of the virtual prototype, but also to validate the PLC code inside the virtual model. The purpose of this is to enable faster, more flexible, and more efficient processes to produce higher-quality goods at reduced costs. The virtual environment allows us to test various programs in different scenario situations and check for defects before it is implemented on the physical system.

Design of a new Kaplan pico-turbine runner blades
Conférence ArODES

Maxime Chiarelli, Ludovic Favre, Nicolas El Hayek, Elena-Lavinia Niederhäuser, Laurent Donato

Proceedings of 29th IAHR Symposium on hydraulic machinery and systems, September 16-21, 2018, Kyoto, Japan

Lien vers la conférence

Résumé:

Within the frame of the design of a pico-hydro power plant for developing countries, the University of Applied Sciences of Fribourg (Switzerland) aims to develop a low-cost Kaplan turbine with a power output of at least 1kW. The current paper presents the study and the results of the development of this new turbine as well as the seeming paradox to use advanced simulation technics in order to design a low-cost turbine. At first, a turbine with twisted blades was designed to obtain the best performance. Numerical simulations (CFD) and experimental tests were performed to characterize the turbine performance. The first prototype is manufactured by a 5-axis CNC machine. Nevertheless, in developing coutrines this technology is not accessible and therefore, a new approach for the design has to be considered and applied. The manufacturing processes within these countries is studied and presented. The best known manufacturing techniques for those countries are those based on metal sheets and welding. Hence, a pico-turbine which can be completely realized using these techniques is designed and investigated. The challenge was to determine the optimal thickness, the guide blade angle and the best bending of the runner blades, which are then welded on a hub. The turbine performance is characterized by CFD simulations. By varying the parameters mentioned above, the best compromise between feasability and performance is found. The results show that the low-cost turbine has a reduced mechanical power of 50 % compared to the standard turbine. Nevertheless, the achieved overall power output is by far sufficient for the intendend application and the simplicity of design guarantees an uncomplicated maintenance. Currently, the concept is validated and tested in Madagascar. Besides the use in developing countries, the turbine has the potential to be installed in mountain regions or any other isolated regions within developed countries.

Design and performance evaluation of a substitution solution for spiral casing of pico-hydroelectric plants
Conférence ArODES

Ludovic Favre, Maxime Chiarelli, Nicolas El Hayek, Elena-Lavinia Niederhäuser, Laurent Donato

Proceedings of 29th IAHR Symposium on hydraulic machinery and systems, September 16-21, 2018, Kyoto, Japan

Lien vers la conférence

Résumé:

A test bench for Kaplan and Francis pico-turbines was developed at the University of Applied Sciences of Fribourg (Switzerland) to test different axial turbine designs from 0.3 to 6 kW. Using the experimental results, this test bench allows comparing the results of the CFD simulations and of the measurements of the tested turbines. During the test rig design, due to the different specific components of the axial turbine, a new concept was developed to replace the spiral casing. The current paper presents the design of a substitution solution for the spiral casing of pico-hydroelectric plants and its performance compared to the standard solution by numerical simulations. The new concept, called "water-box", had to fulfil some criteria: allow adapting to different flow conditions (flow rate up to 65 l/s and to a pressure range up to 10 bar), while ensuring the same uniform flow distribution as with a standard spiral casing. In the same time, it had to allow optimizing other parameters like the space needed and the costs. The idea is to keep the principle of a sideway inlet and an axial outlet but using standard elements of industrial piping to reduce the costs. With this geometry, the fluid is naturally rotated and pushed towards the axial exit. There, a convergent pipe is mounted and finally, a stabilization grid which homogenizes the flow and break the rotation before the turbine. The performances of the new concept were evaluated and the results compared with a "standard" designed spiral casing by CFD simulations. The results showed that with the "water-box", the pressure losses are 22 times higher. Nevertheless, the manufacturing simplicity of the water-box compared to the spiral casing achieves a substantial costs reduction of about 65 %. Thus, all the criteria were fulfilled. This simplicity associated with performances, which remain very interesting open new fields of application notably for pico-hydroelectric turbines installed for example on domestic sites.

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