Consultez les proceedings de la Conference COMSOL 2020
Modeling an Ejector for Hydrogen Recirculation in a PEM Fuel Cell
PEM Fuel Cells’ durability and performance can be increased using an ejector based hydrogen recirculation system. In this work, a CFD model has been implemented to simulate the flow within an ejector used to recirculate hydrogen in PEM Fuel Cell systems. The model has been validated ... En savoir plus
3D Modeling of Hydrogen Absorption in Metal Hydride Hydrogen Storage Bottles
The storage of hydrogen as an absorbed element in metal hydride bottles is a promising technique for energy storage. In this work, a three-dimensional model of a charging process in a metal hydride container has been developed to simulate the absorption reaction and resultant heat and ... En savoir plus
Predicting the Transformation of a Liquid Food Product within a Tubular Heat Exchanger
Continuous heat treatment is employed in food industry as a key step in the production of selected products, like dairy desserts. The evolution of an aqueous suspension of starch granules along an existing heat exchanger is here studied by 3D modeling of fluid flow, heat transfer and ... En savoir plus
Scattering of mm-Waves by Turbulent Structures in Magnetically Confined Fusion Plasmas
In magnetically confined fusion devices, electron cyclotron resonance heating (80-170 GHz) is characterized by a local RF-power deposition at the electron cyclotron resonance [1]. A mm-wave RF Gaussian beam is launched from a dedicated antenna and propagates through the highly turbulent ... En savoir plus
Transient Model of a Fluorine Electrolysis Cell
In the nuclear fuel cycle, fluorine is produced by the electrolysis of the molten salt KF-2HF. It is a complex process to study since hydrofluoric acid and fluorine are hazardous and highly corrosive. A 3D-model of a lab-scale fluorine electrolysis cell has been developed to increase ... En savoir plus
Parametric Investigation of the Common Geometry Shapes for Added Mass Calculation
This work is aimed to demonstrate how variation of geometries' parameters would affect the fluid loading effect in water using COMSOL Multiphysics and compared with analytical data. When a structure is placed in water, the interaction between the water and the structure plays an ... En savoir plus
COMSOL Multiphysics® for Building Energy Simulation (BES) Using BESTEST Criteria
Pioneering Computational Models for the Built Environment Energy performance is becoming more important in the build environment. With better insulated buildings, the possibility of moisture problems and thermal bridges increases. There for, it is not only important to determine the ... En savoir plus
Design of an Anisokinetic Probe for Sampling Radioactive Particles from Ducts of Nuclear Facilities
The aim of this study is to design a new concept of shrouded probe that meets the ISO 2889 requirements and it is suitable for small-ducts installation. In order to reduce the construction costs they have been considered standard stainless steel welding fittings manufactured according to ... En savoir plus
Simulation of Constant-Volume Droplet Generators for Parallelization Purposes
To maintain same droplet size across parallel devices, new break-up strategies based on geometry are been studied. In this work, we model a geometrically-set droplet generator, in which the droplet break-up occurs by a block and break mechanism. In other words when the disperse phase ... En savoir plus
Modeling of Transport Phenomena in Laser Welding of Steels
Laser Welded Blank solutions enable to reduce vehicles weight and to optimize their crash performances by means of simultaneous tuning of different grades and thicknesses. The present work aims to characterize numerically and experimentally materials mixing during laser welding. For ... En savoir plus