Speakers
EVENT SPEAKERS
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Meet our world-renowned experts. They'll share their knowledge and latest research on the hottest topics in electrical engineering
Advanced cooling techniques for rotating electrical machines
Pr. SMAIL MEZANI
Professor in Electrical Engineering at the Faculty of Science and Technology of the University of Lorraine, Nancy, France
In many modern electrification applications, such as aeronautics and automobiles, compact, high-efficiency actuators are increasingly in demand. This calls for the deployment of various technical solutions and the use of specific materials (low-loss laminations, hairpin windings, impregnating resins with good thermal characteristics, etc.). Thermal considerations become more important due to higher loss densities resulting from reduced active volumes and exchange surfaces. Efficient cooling is required, and this calls for high-performance cooling systems based on heat-transfer fluids such as oil or water.
The conference will present some advanced cooling techniques for electrical machines. It will focus on the characterization of a water-cooled heat exchanger using an experimental bench developed at Laboratoire GREEN. We’ll also look at the multiphysics modeling required for optimization, using the “LibreOffice Calc” calculation tool. An example of magnet machine optimization will be developed.
MRI-compatible electromagnetic actuators
Dr. LAMIA BELGUERAS
Professor in Electrical Engineering at the Faculty of Science and Technology of the University of Lorraine, Nancy, France
Magnetic Resonance Imaging (MRI) is a highly effective imaging modality for real-time control during surgical procedures – MRI-guided surgery using actuators.
The conference will present an innovative MRI-compatible electric actuator concept. The aim is to replace cumbersome pneumatic actuators and ultrasound actuators, which interfere with image quality. The electric actuator is expected to improve image-guided surgical procedures (biopsies) inside an MRI scanner. For the application in question, an electric actuator is more compact and offers greater flexibility of use. Indeed, the electromagnetic torque is adjustable, making the actuator usable at different power levels, while ensuring high precision for small displacements.
We’ll be looking at the design and testing of a scaled-down actuator and MRI environment studied and developed at Laboratoire GREEN.