Ford Motor Company
Dr. Bernardi is a Research Engineer with Ford Motor Company in Dearborn, MI. Her research focuses on the analysis and simulation of electrochemical energy-storage and conversion systems. In particular, Dr. Bernardi develops mathematical models that predict system behavior and identify governing physicochemical processes. Experimental investigations support model development, analysis, and ...
Ziegler, C., Tranitz, M., Schumacher, J.O.
Fraunhofer Institute for Solar Energy Systems, Freiburg, Germany
A mathematical model of planar self-breathing fuel cells is developed and validated. The geometry of the model is a two-dimensional symmetric element of a planar self-breathing fuel cell. The multicomponent transport of the species is considered as well as the couplings between the transport processes of heat, charge, and mass, and the electrochemical reactions. The cell model is validated ...
R. E. White, and Long Cai
R.E. White & Associates LLC, Columbia, South Carolina, USA
Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina, USA
The existing lithium ion battery model in COMSOL’s Multiphysics software is extended to include the thermal effects. The thermal behavior of a lithium ion battery is studied during the galvanostatic discharge process with and without a pulse. The existing lithium ion battery model in COMSOL 3.5a is extended by adding an energy balance and the temperature dependence of properties of ...
V.V. Narvekar, Q. Fan, and S. Warner
Dept. of Materials and Textiles, University of Massachusetts, Dartmouth
A computational model is used to describe the current density distribution and the water management in the Nafion® 117 and Nafion®1115/PP composite membranes. The effects of the change in the membrane water content and the back-diffused water on distribution of proton concentration is discussed.
University of Utah
In this presentation we outline the analysis methods applicable to the electrochemical driven transport in nanopores and membranes. This is a modern and ever growing research area with many different applications, some examples are: • iontophoretic drug delivery across skin, • protein ion channel based sensors, • resistive pulse counting of nanoparticles, • 3-D microbattery ...
Computational Analysis of Transport Phenomena and Electrochemical Reactions in a Polymer-Electrolyte-Membrane Fuel Cell
P. Mina, J. Pauchet, and P. Schott
LITEN/DTH/LCPEM , CEA-Grenoble, Grenoble, France
A two-dimensional transient model for the membrane electrode assembly of a Polymer-Electrolyte-Membrane Fuel Cell is presented. Species and energy transport, electrical current distribution, and electrochemical kinetics are described in the computational domain, which consists of the electrolyte membrane as well as a gas diffusion layer, a micro-porous layer and a catalyst layer for both the ...
T. Machado Amorim, and C. Allély
ArcelorMittal Research and Development, Automotive Products Center, Maizières les Metz, France
Underpaint corrosion is one of the most important degradation modes for galvanized steel sheets employed in automotive and building industry. Simplified systems (metal coated with thin polymer layer) under corrosion situations have been studied in the past few years and it is now widely accepted that one of the mechanisms responsible for the paint disbonding is cathodic delamination. In this ...
Department of Thermal Engineering,
Computer simulations of the SOFC provided insights in the detailed transport and reaction processes, and improving cell design and electrode microstructure. COMSOL Multiphysics was useful for "single button" cell modeling, 2D or 3D Unit Cell modeling, and Electrochemical Impedance Spectroscopy (EIS) modeling.
Towards the Modeling of Microgalvanic Corrosion in Aluminum Alloys: the Choice of Boundary Conditions
N. Murer, N. Missert, and R. Bucchheit
Fontana Corrosion Center, Ohio State University, Columbus, OH, USA
Sandia National Laboratories, Albuquerque, NM, USA
Aluminum alloys in near-neutral, mildly aggressive solutions, undergo damage accumulation during corrosion, mostly due to the presence of micrometer-sized constituent intermetallic particles (IMP) that create a microstructural discontinuity at which localized corrosion occurs. The Nernst-Planck equation with electroneutrality is used to simulate current and pH distributions resulting from ...
T. Machado Amorim , C. Allély, J. Caire
Arcelor Mittal Research, Maizieres-les-Metz, France
ENSEEG, Grenoble, France
The corrosion at cut-made edges is significant due to the anode to cathode surface ratio in this region. The major problems are the risks of red rust appearance at the exposed steel surface, and the risks of paint delamination in case of insufficient corrosion protection. The work presented here focuses on the development of a 2D FEM model simulating a steady state corrosion situation at a cut ...