Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Thermal Integration of Coupled SOFC System with a High-Performing Metal Hydride Storage

A. Mossadegh Pour[1], A. Dhira [1], R. Steinberger-Wilckensa[1]
[1]Department of Chemistry, University of Birmingham, Edgbaston, Birmingham, United Kingdom

Auxiliary Power Units can play an important role in reducing vehicle emissions, especially in diesel and kerosene driven vehicles. In conventional vehicles the electricity supply comes from a generator that is directly coupled to the propulsion engine. New generation of fuel cell APUs exclusively use Solid Oxide Fuel Cells with some developments in high temperature polymer electrolyte membranes ...

Computational Modelling of Fluid Dynamics in Electropolishing of Radiofrequency Accelerating Cavities - new

H. Rana[1], L. Ferreira[2]
[1]Loughborough University, Leicestershire, UK
[2]European Organisation for Nuclear Research (CERN), Genéve, Switzerland

Electropolishing is an electrochemical process that radiofrequency accelerating cavities undergo in order to improve their inner metal surface finishing. This is performed prior to their installation into particle accelerators, in order to enhance their accelerating properties. Using COMSOL Multiphysics® software it was possible to model the process throughout the cavity and study the fluid ...

Modeling the Effect of Discrete Distributions of Platinum Particles in the PEM Fuel Cell Catalyst Layer

C.F. Cetinbas[1], A.K. Prasad[2], S.G. Advani[1]
[1]Center for Fuel Cell Research, Department of Mechanical Engineering, University of Delaware, Newark, DE, USA
[2]University of Delaware, Newark, DE, USA

In this study, the basic catalyst layer (CL) structure, consisting of carbon-supported Pt particles (C|Pt) and an ionomer binder, is investigated numerically by using COMSOL. The significance of modeling discrete Pt particles on the carbon support is highlighted by comparing the cell performance results to the case in which the Pt is assumed to be distributed uniformly over the carbon support as ...

Evaluation of Performance of Enzymatic Biofuel Cells with Microelectrode Arrays Inside a Blood Artery via Finite Element Approach

C. Wang[1], Y. Song[1]
[1]Florida International University, Miami, FL, USA

Enzymatic biofuel cells (EBFCs) are considered as a promising candidate for powering miniature implantable devices. In order to predict the performance in the human blood artery, we simulated a 3D EBFC chip with highly dense micro-electrode arrays. In this simulation using COMSOL Multiphysics®, we applied the 1) Michaelis Menten equation; 2) Nernst potential equation; 3) Navier Strokes velocity, ...

Transient Model of a Fluorine Electrolysis Cell

J. Vukasin [1], I. Crassous [1], B. Morel [1], J. Sanchez-Marcano [2], P. Namy [3]
[1] HRP, AREVA NC, France
[2] Institut Européen des Membranes - CNRS, France
[3] Simtec, France

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 our understanding of this process, using the electric currents and the bubbly flow interfaces to simulate the ...

Using Computational Multiphysics to Optimise Channel Design for a Novel PEM Fuel Cell Stack

F. A. Daniels[1], D. J. L. Brett[1], A. R. Kucernak[2], and C. Attingre[2]
[1]University College London, London, UK
[2]Imperial College London, London, UK

Polymer electrolyte membrane (PEM) fuel cells have significant potential as a source of clean, efficient energy production. This study presents a three-dimensional, non-isothermal, fully-coupled model of a PEM fuel cell with printed circuit board current collectors. The effect of the current collector design on transport phenomena and consequent cell performance is investigated. The model ...

Effect of Channel Width on Fuel Cell Performance Using 3D Modelling

R. Pushpangadan, S. S. Dimble, and S. P. Duttagupta
IIT Bombay
Mumbai
Maharasthra, India

A three Dimensional model of the PEM Fuel cell is implemented using COMSOL Multiphysics and the channel width is varied to study the performance.Effect of channel width on the performance of the cell is studied by varying the width of the channel and keeping channel width to rib ratio constant at 1. Rib width is the width of the GDL area which is not covered by the channel. All other parameters ...

Numerical Modeling of Pit Growth in Microstructure

S. Qidwai[1], N. Kota[2], V. DeGiorgi[1]
[1]Naval Research Laboratory, Washington, DC, USA
[2]Science Applications International Corporation, Washington, DC, USA

Pitting corrosion is a complex phenomenon where rates of: i) chemical reactions, ii) diffusion of various species involve in those reactions, and iii) species dissolution at the metal-electrolyte interface are fully dependent on each other, except under special conditions or assumptions. One set of such conditions is that: a) there are no species concentration gradients due to the rapid mixing ...

Tertiary Current Distributions on the Wafer in a Plating Cell

L. Tong[1]
[1]Keisoku Engineering System Co., Tokyo, Japan

The tertiary current distributions on the wafer in a plating cell are studied in this work. An acid copper sulfate electrolyte composed of CuSO4/5H2O of 2.4 g/L and H2SO4 of 90 g/L is taken into account for copper deposition on the wafer. The solution of shear-plate agitating fluid dynamics is coupled into the calculation of tertiary current distributions. The obtained distributions of tertiary ...

Kinetic Investigation of a Mechanism for Generating Microstructures on Polycrystalline Substrates Using an Electroplating Process

T. Soares[1], H. Mozaffari[2], H. Reinecke[1]
[1]Universität Freiburg, Freiburg im Breisgau, BW, Germany
[2]Hochschule Furtwangen, Tuttlingen, BW, Germany

The purpose of this study is to understand the growth mechanism of copper (Cu) films on a Cu-Zn system substrate with a pre-defined pattern. The pattern was defined by conducting a selective etching process on a two-phase polycrystalline substrate. As a result of this process, there were etched regions correspondent to beta-phase crystals and quasi non-etched regions that belong to alpha-phase ...