S. Skoda, E. Robalinho, E. F. Cunha, M. Linardi
Instituto de Pesquisas Energéticas e Nucleares - IPEN/CNEN-SP, São Paulo, SP, Brazil
Universidade Nove de Julho - UNINOVE, São Paulo, SP, Brazil
The use of numerical techniques in PEM fuel cell sensoring represents an advantage of project engineering, reducing the costs and accelerating the manufacturing of prototypes. In this work some numerical responses are shown, relating to numerical sensoring of water and oxygen mole fractions at cathode of a 5 cm² of geometric area PEM fuel cell. The need to recognize a geometric figure of merit ...
N. Briguglio , G. Giacoppo , O. Barbera , F. Cipiti , M. Ferraro , G. Brunaccini , L. Di Giovanni , N. Randazzo , E. Antonucci 
 CNR ITAE, Italy
Unmanned aerial vehicles (UAVs) have recently received great interest due to their great potential in both military and civil applications [1-4]. Testing and construction of UAVs is expensive and time consuming and a simulation approach can help to reduce cost for both design and tests. In this paper, the authors have used COMSOL Multiphysics software to design a UAV’s pod equipped with a Solid ...
L. Gurreri , F. Santoro , G. Battaglia , A. Cipollina , A. Tamburini , G. Micale , M. Ciofalo ,
 Dipartimento di Ingegneria Chimica, Gestionale, Informatica, Meccanica (DICGIM), Università degli Studi di Palermo (UNIPA), Palermo, Italy
Salinity gradient represents an interesting renewable energy source. Reverse ElectroDialysis (RED) is an ion exchange membrane-based process that convert directly the salinity gradient energy into electric current. Thereby, two solutions at different concentrations are fed into two series of alternated channels. As various physical phenomena occur in RED units and affect the process ...
L. Lam, and R. Darling
University of Washington
Many physical systems contain sequential modes of operation. The sequence is one-way and switching between modes is dependent upon specific internal parameters of the system itself. While COMSOL provides the flexibility to perform time-domain simulation and time-based modifications of boundary conditions, simulating sequential systems based upon internal physical variables in COMSOL can be a ...
Kinetic Investigation of a Mechanism for Generating Microstructures on Polycrystalline Substrates Using an Electroplating Process
T. Soares, H. Mozaffari, H. Reinecke
Universität Freiburg, Freiburg im Breisgau, BW, Germany
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 ...
A. Aman, R. Gentile, Y. Xu, N. Orlovskaya
Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, FL, USA
Fuel cells are devices that convert chemical energy of a fuel into electrical energy through electrochemical processes. One of the types of fuel cell is the Solid Oxide Fuel Cell (SOFC) that uses solid ceramics for electrolytes. Numerical simulation involves constructing a mathematical model of the SOFC and use of specifically designed software programs that allows the user to manipulate the ...
A. Shirinskaya , Y. Bonnassieux , G. Horowitz ,
 LPICM, CNRS, Ecole Polytechnique, Université Paris Saclay, Palaiseau, France
One of the most promising categories of semiconductor-based sensors is organic electrochemical transistor (OECT), which consists of three electrodes (Source, Drain and Gate) and two active layers: electrolyte and conductive polymer. Despite the fact that OECT attracts a lot of attention in the last years, appropriate physical and chemical coupled models to describe precisely the interaction ...
Current Density Simulations in the Electrodeposition from Ionic Liquids: Effects of the Conductivity
I. Perissi, C. Borri, S. Caporali, and A. Lavacchi
Department of Chemistry, University of Firenze, Sesto Fiorentino, FI, Italy
The overall goal of this work is the use of COMSOL Multiphysics® in the modeling of the current density distributions for the electrodeposition of aluminum coatings from ionic liquids. The local current distribution is strongly dependant on the conductivity and on the geometry of the galvanic cell and can only be computed by the numerical solution of the partial differential equations ...
Topology Optimization of Lithium-Ion Battery Electrode Microstructure Morphology for Reduction of Damage Accumulation and Longevity of Battery Life - new
P. Clarke, R. Abedi
University of Tennessee Space Institute, Tullahoma, TN, USA
The ubiquitous commercial use of Lithium-Ion batteries (LIBs) has increased interest in their implementation into efficient energy storage systems for clean and renewable power sources and the electrical transportation industry. Unfortunately, LIBs are not yet technological mature to meet various commercial demands. Consider the following challenges for example,: (1) lower than desired effective ...
P. R. Impinnisi , L. F. Siqueira ,
 Instituto Lactec, Curitiba, PR, Brasil
Foi desenvolvido um modelo 3D para simular descargas de eletrodos de baterias de chumbo-ácido. O modelo inclui a formação de filmes isolantes de sulfato de chumbo durante a descarga e permite visualizar a analisar a evolução da distribuição de linhas de corrente, os efeitos de bordas, os gradientes de concentração e outros fenômenos, nas regiões externas do eletrodo e no interior de poros.