Publication
Experimental investigation and analysis of sequential jet impingement concepts for enhanced turbine cooling
Publications associées (145)
Design and assessment of an evaporating water-cooled methanation reactor for a SOE-based power-to-methane system
The transition towards clean renewable energy sources, where wind and solar are prone to variation, requires adequate energy storage. Power-to-methane (PtM) systems can be part of the solution. Specifically, solid-oxide-electrolyser (SOE) based PtM systems ...
EPFL2024Radiation-tolerant Multichannel Dew Point Temperature Monitoring System for High Energy Physics Applications
The next generation of high-energy physics (HEP) detectors will predominantly be silicon-based. As pixel sensor technology gains momentum and the number of channels surpasses one billion (for a volume of approximately 20 m3) to achieve the high resolution ...
EPFL2023A novel methodology to identify and quantify deepwater-renewal processes during winter cooling in a large, deep lake (Lake Geneva)
David Andrew Barry, Ulrich Lemmin, Naifu Peng, François Mettra, Rafael Sebastian Reiss
We propose a novel methodology – heat budget decomposition – to identify and quantify different deepwater-renewal processes during a very cold spell in 2012 in a large, deep lake (Lake Geneva, 309-m depth). Combined with field observations and numerical mo ...
2023Advancing efficiency and reliability in thermal analysis of laser powder-bed fusion
Christian Leinenbach, Rafal Wróbel, Thomas Mayer
In laser based powder-bed fusion of metals (PBF-LB/M), parts are fabricated by melting layers of powder using a high-intensity laser beam. During this process, the material is exposed to rapid cooling rates and intense thermal gradients, which are the unde ...
2023Near-junction microfluidic cooling for high power-density GaN-on-Si electronics: A wafer, device, packaging, and system-level investigation
Remco Franciscus Peter van Erp
Electrification of the energy section, from generation to end-use, plays an essential role in reducing global CO2 emission. Innovations in power electronics are required to increase conversion efficiency and power density. Gallium nitride (GaN) transistors ...
EPFL2022Conductive Heat Transfer in Partially Saturated Gas Diffusion Layers with Evaporative Cooling
Sophia Haussener, Felix N. Büchi, Mirco Magnini
Heat transport is an important, though often neglected function of gas diffusion layers (GDLs) of polymer electrolyte membrane fuel cells. Thermal conductivity is a key property, especially in partially water saturated GDLs and when the phase change of wat ...
2022DESIGN AND MANAGEMENT OF THREE-DIMENSIONAL MULTI-PROCESSOR SYSTEMS-ON-CHIP WITH INTEGRATED FLOW CELL ARRAYS
Three-Dimensional Multi-Processor Systems-on-Chip (3D MPSoCs) are promising solutions for highly intensive Artificial Intelligence (AI) and Big Data applications. They combine remarkably dense computation capabilities and massive communication bandwidths. ...
EPFL2022Convective regimes induced by surface cooling and topography in stratified waterbodies
Damien Bouffard, Hugo Nicolás Ulloa Sánchez, Tomy Doda, Cintia Luz Ramon Casanas
Gravitational convection plays a significant role in the ventilation, heat and mass distribution of aquatic systems. This study investigates thermally driven convection resulting from heat loss at the air-water interface during cooling periods in freshwate ...
Madrid2022Microchannel cooling for the LHCb VELO Upgrade I
Alessandro Mapelli, Giulia Romagnoli, Victor Coco
The LHCb VELO Upgrade I, currently being installed for the 2022 start of LHC Run 3, uses silicon microchannel coolers with internally circulating bi-phase CO2 for thermal control of hybrid pixel modules operating in vacuum. This is the largest scale applic ...
ELSEVIER202280 K cryogenic stage for ice lithography
Danick Briand, Rubaiyet Iftekharul Haque
We present a cryogenic system design and development for ice lithography. The cryo-stage is designed with embedded channels to allow direct liquid nitrogen flow, enabling fast cryogenic cooling, and low sample temperature. The stage cools down to 78.8 K in ...
ELSEVIER2022