Concept
Tuyauterie (support)
Publications associées (32)
Thermo-hydro-mechanical behavior of energy barrettes: Field experiments and numerical simulations
Lyesse Laloui, Elena Ravera, Alessandro Francesco Rotta Loria
Over the past two decades, the thermo-hydro-mechanical behavior of earth-contact structures such as piles, walls, slabs, and tunnels, which simultaneously provide structural support and energy supply, has been studied through various field experiments and ...
ELSEVIER2023Pile interaction effects and environmental impacts of refrigerant on the performance of an energy pile foundation
Selina Heiniger, Annik Julia Schaufelberger
Energy piles are an efficient renewable energy source. The advantage of these heat capacity systems is the use of already necessary infrastructure for structural support to extract heat from the ground. In this project a numerical finite element model of t ...
2021Electron Cloud and Synchrotron Radiation characterization of technical surfaces with the Large Hadron Collider Vacuum Pilot Sector
This PhD thesis presents the experimental study on electron cloud (EC) and synchrotron radiation (SR) phenomena affecting the LHC storage ring performance. These phenomena are one of the major issues of the LHC storage ring, generating beam instabilities, ...
EPFL2020Computational 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 LTD2020Design Concept and Thermal & x2013;Mechanical Analysis of the Optical Mirror (M3) for the ITER ECH Upper Launcher
The mirror M3 is a part of the in-vessel quasi-optical beam propagation system for the ITER electron cyclotron heating upper launcher (ECHUL). The millimeter waves are guided through fixed mirror sets (M1, M2, and M3) and the front steering mirror set (M4) ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020Multimodal pipe-climbing robot with origami clutches and soft modular legs
Jamie Paik, Frédéric Henri Vaskin Giraud, Hongying Zhang, Yongkang Jiang
In nature, climbing trees and pipes of varying diameters or even navigating inside of hollow pipes and tree holes is easy for some climbing animals and insects. However, today's pipe-climbing robots, which are important for automatically conducting periodi ...
2020Energy performance and economic feasibility of energy segmental linings for subway tunnels
Lyesse Laloui, Alessandro Francesco Rotta Loria, Benoît Claude Henri Cousin
This study focuses on the analysis of the energy performance and economic feasibility of so-called tunnel energy segmental linings: an innovative technology that couples the structural support role of the tunnel lining with the heating-cooling role of the ...
2019Numerical investigation of the jet velocity profile and its influence on the Pelton turbine performance
François Avellan, Ebrahim Jahanbakhsh, Audrey Paulette Solange Maertens, Sebastián Camilo Leguizamón Sarmiento, Siamak Alimirzazadeh, Takashi Kumashiro
Numerical investigation of the unsteady flow patterns around the bucket can be helpful to improve the Pelton turbine efficiency. In fact, by studying the loss mechanisms in the flow, one can optimize the bucket design. For this purpose, an accurate investi ...
IOP PUBLISHING LTD2019Fluid–structure interaction in pipe coils during hydraulic transients
Anton Schleiss, Pedro Filipe De Almeida Manso, David Ferràs Segura
The paper presents the analysis of fluid–structure interaction occurring during hydraulic transients in pipe coils by means of a four-equation model. The purpose is to understand and describe the effect of the coil movement on the transient wave. The four- ...
Taylor & Francis Ltd2017The Role of Geological Barriers in Achieving Robust Well Integrity
Brice Tanguy Alphonse Lecampion
Wells play a key role in the reduction of greenhouse gas emissions. They are not only a critical element in ensuring the permanent trapping of carbon dioxide (CO2) in deep subsurface permeable formations, but they are also being recognized as an important ...
2017