W. Beckert, C. Freytag, T. Frölich, G. Fauser
Fraunhofer IKTS, Dresden, Germany
The presented model approach offers a computational efficient tool to analyze the influences of geometrical design details, material selection and operational conditions on the electro-thermal behavior of a full Li ion battery cell geometry. It considers typical aspects as anisotropic winding structure, electro-thermal coupling and nonlinear electrical characteristics for moderate computational ...
F.T. Wandschneider, M. Küttinger, P. Fischer, K. Pinkwart, J. Tübke, H. Nirschl
Fraunhofer-Institute for Chemical Technology, Pfinztal, Germany
Karlsruhe Institute for Technology, Karlsruhe, Germany
A two-dimensional stationary model of a vanadium oxygen fuel cell is developed in COMSOL Multiphysics®. This energy storage device combines a vanadium flow battery anode and an oxygen fuel cell cathode. The oxygen reduction reaction generates additional water, leading to a degradation of the catalyst performance over time. A logistic function is introduced to the Butler-Volmer equation in order ...
M.S. Nesro, I.M. Elfadel
Masdar Institute of Science and Technology, Masdar City, Abu Dhabi, UAE
Lithium microbatteries are replacing conventional power sources in many microsystems areas such as wireless sensors and biomedical monitors. In many of these applications, compact models of micro batteries are needed both at the microsystems design stage and at the real-time power management stage. These compact models are typically derived from physics-based discretized formulations. We have ...
COMSOL Multiphysics® Based Identification of Thermal Properties of Mesoporous Silicon by Pulsed Photothermal Method - new
N. Semmar, I. El Abdouni, A. Melhem
GREMI-UMR7344, CNRS/University of Orléans, Orléans, France
The silicon is mainly known under its single-crystal shape and polycrystalline. Since a few decades, a new type of morphology is developed: the porous silicon (p-Si). Meso-porous silicon (Mp-Si) is one of promising materials for future microelectronic chips multi-functionalization systems, and for micro-sensing devices. For thermal properties investigation many experimental systems were ...
Numerical Analysis of Propeller-induced Low-frequency Modulations in Underwater Electric Potential Signatures of Naval Vessels in the Context of Corrosion Protection Systems
D. Schaefer, J. Doose, A. Rennings, and D. Erni
General and Theoretical Electrical Engineering (ATE), Faculty of Engineering, University of Duisburg-Essen, Duisburg, Germany
Technical Center for Ships and Naval Weapons (WTD 71), Bundeswehr, Eckernförde, Germany
Since October 2009 the laboratory of ATE has carried out collaborative research with the WTD 71 that aims for prediction, reduction and optimization of so-called underwater electric potential (UEP) signatures. COMSOL is used to simulate potential distributions in the context of impressed current cathodic protection (ICCP) systems. The electrode kinetics is considered by using boundary conditions ...
Z. Umar, D. Ledwoch, L. Komsiyska, S. Vasić[
EWE-Forschungszentrum für Energietechnologie e. V, Oldenburg, Germany
In general battery cells are charged/discharged using constant current or constant power expressed as C-Rates and P-Rates respectively. We are developing a single cell-level Li-Ion battery model in order to simulate the performance and the physicochemical phenomena under power discharging mode (P-Rate). The P-Rate is defined as the measure of the rate at which a battery charges/discharges ...
Heat Generation Modeling of Two Lithium Batteries: from the Cell to the Pack in COMSOL Multiphysics® Software
J. Stoudmann , R. Rozsnyo , T. Mackin , J. Dunning 
 Haute École du paysage, d'ingénierie et d'architecture, Genève, Switzerland
 California Polytechnic State University, San Luis Obispo, CA, USA
A thermal model to predict the heat generation during the charge and discharge of a battery pack is an essential tool to manage the thermal behavior, performance and life of the batteries. In this work, a battery cell is modeled in COMSOL Multiphysics® using the Batteries and Fuel Cells module.
Primary Current Distribution Model for Electrochemical Etching of Silicon through a Circular Opening
A. Ivanov , U. Mescheder ,
 Hochschule Furtwangen University, Furtwangen im Schwarzwald, Germany
Primary current distribution model for anodization of low-doped p-type silicon through a circular opening in frontside insulating mask is developed. The model is applied in two regimes of the process – pore formation and electropolishing – by definition of current density dependent functions of porosity and dissolution valence based on experimental results. As found also experimentally, ...
N. Obaid, R. Sivakumaran, J. Lui, A. Okunade
University of Waterloo, Waterloo, ON, Canada
This project modeled an industrial chromium plating process for automotive components. The process was modeled via the COMSOL Multiphysics® Electrodeposition Module. The simulation examined the effect of solution conductivity, electrode spacing, and anode height utilizing a factorial design approach. A sensitivity analysis was used to study the effect of these variables on the thickness value at ...
Kesoku Engineering System Co., Ltd.,
The tertiary current distributions on rotating electrodes are studied in this work. An acid copper sulfate electrolyte is used within an electrochemical cell of practical dimensions. The distributions of ion concentrations are obtained by the two-dimensional fluid flow simulation and the solution of mass-transport equations based on axial symmetry.