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Papers & Presentations

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Showing results 1 - 20 of 113

Electrochemistry

	3D Model for the Dynamic Simulation of SOFC Cathodes A fuel cell is an electrochemical system, which converts chemical energy into electricity by a controlled reaction of hydrogen and oxygen. The performance of the electrode is likewise determined by its material and the... COMSOL Conference 2011, Stuttgart A. Häffelin, J. Joos, M. Ender, A. Weber, and E. Ivers-Tiffée Institut für Werkstoffe der Elektrotechnik (IWE) Karlsruher Institut für Technologie (KIT) Karlsruhe, Germany
	3D Temperature Distribution during Self-Propogating High-Temperature Synthesis of Advanced Ceramics Self-propagating High-temperature Synthesis (SHS) is an economical process to produce quality advanced ceramics. In this work, SHS of solid oxide fuel (SOFC) cathode materials was modeled using COMSOL Multiphysics. COMSOL Conference 2006, Boston I. Selig¹ , S. Lin¹ , D.L. Cocke¹ , and D. Luss² ¹ Lamar University ² University of Houston
	A 2D Axisymmetric Electrodeposition Model Electroplating is a vital technology widely employed for many technological applications ranging from decorative or anti-corrosion coatings to high precision nanotechnology passive electromagnetic cloaking devices. This 2D Axisymmetric... COMSOL Conference 2011, Boston R. Pryor Pryor Knowledge Systems, Inc. Bloomfield Hills, MI
	A Complete Transport Model of Components through Zeolite Membranes in a Wicke-Kallenbach Permeation Cell This study discusses the development of a complete model for multi-component mass transport through a zeolite membrane in a Wicke-Kallenbach permeation cell. A three dimensional permeation cell model was built in COMSOL Multiphysics.... COMSOL Conference 2006, Copenhagen C.J. Kamp, I. Perdana, and D. Creaser Chalmers University of Technology, Gothenburg, Sweden,
	A Fully Coupled Three-Dimensional Dynamic Model of Polymeric Membranes for Fuel Cells The proton exchange membrane is a key component in the currently widely studied Proton Exchange Membrane Fuel Cells. In this paper a fully coupled three-dimensional dynamic numerical model of the membrane including all the physically... COMSOL Conference 2009, Milan P. Alotto¹ , M. Guarnieri¹ , and F. Moro¹ ¹ Dipartimento di Ingegneria Elettrica, Università di Padova, Padova, Italy
	A Model for Panar Self-breathing Proton Exchange Membrane Fuel Cells in FEMLAB 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... COMSOL Conference 2005, Boston Ziegler, C., Tranitz, M., Schumacher, J.O. Fraunhofer Institute for Solar Energy Systems, Freiburg, Germany
	A Model for Tubular Solid Oxide Fuel Cells In this paper, a model of a tubular fuel cell is proposed and includes thermo-fluid dynamics, chemical reactions and electrochemistry. The main results presented are the temperature distribution, the concentration of species and the... COMSOL Conference 2006, Milan C. Ciano Politecnico di Torino
	An Agglomerate Model for the Rationalisation of MCFC Cathode Degradation This paper describes the numerical modeling of a key material-stability issue within the realm of Molten Carbonate Fuel Cells (MCFC). The model describes the morphological and attending electrocatalytic evolution of porous NiO electrodes... COMSOL Conference 2009, Milan B. Bozzini¹ , S. Maci¹ , I. Sgura² , R. Lo Presti³ , and E. Simonetti³ ¹ Dipartimento di Ingegneria dell’Innovazione, Università del Salento, Lecce, Italy ² Dipartimento di Matematica, Università del Salento, Lecce, Italy ³ ENEA Casaccia, Dipartimento TER, Centro Ricerche Casaccia, S. Maria di Galeria, Roma, Italy
	Analysis of Porous Media-flow This presentation considers the analysis of electroosmotic flow in porous media. Electroosmotic flow is a flow that occurs in microchannels, and is driven by the effect of an electric double layer at the solid-fluid interface.... COMSOL Conference 2006, Taipei Jiunn-Chi Wu National Central University
	A Non-isothermal Modeling of a Polymer Electrolyte Membrane Fuel Cell Polymer electrolyte membrane (PEM) fuel cells have attracted attention as an alternative power source in various applications such as vehicles, portable supplies, and stationary power systems. A non-isothermal PEM fuel model is developed... COMSOL Conference 2009, Boston H. Shin¹ ¹ Department of Mechanical Engineering, University of Michigan – Ann Arbor, Michigan, USA
	Catalyst Degradation in PEM Fuel Cells - Modeling Aspects In a fuel cell-powered engine, the fuel is converted to electrical energy through electrochemical reactions instead of combustion. Long term stability is required for automobile and other energy system applications. The agglomeration of... COMSOL Conference 2007, Grenoble G. Vaivars, P. Ndungu, and V. Linkov South African Institute of Advanced Material Chemistry, University of the Western Cape, Cape Town, South Africa
	Classical Models of the Interface Between an Electrode and an Electrolyte The Electrical Double Layer (EDL) plays a major role in understanding the interface between a charged surface (e.g. an implant) and ionic liquids (e.g. body fluids). The three classical models of the EDL (Helmholtz, Gouy, and... COMSOL Conference 2009, Milan E. Gongadze¹ , S. Petersen¹ , U. Beck² , and U. van Rienen¹ ¹ Institute of General Electrical Engineering, University of Rostock, Rostock, Germany ² Institute of Electronic Appliances and Circuits, University of Rostock, Rostock, Germany
	Clean Energy Technologies: Growing Need for Multiphysics Modeling Iouri Balachov is a Senior Scientist at SRI International (Menlo Park, CA) where he is leading development of Direct Carbon Fuel Cell technology for clean and efficient power generation from coal, biomass, and a wide variety of carbon... COMSOL Conference 2008, Boston Iouri Balachov Senior Scientist, SRI International, Menlo Park, CA, USA
	Comparison of Darcy's Law, the Brinkman Equation, the Modified Navier-Stokes Equation and the Pure Diffusion Equation in PEM Fuel Cell Modeling A two dimensional isothermal single phase PEM fuel cell model is developed and implemented in COMSOL Multiphysics, where Darcy's law, the Brinkman equation, the modified Navier-Stokes equation, and the pure diffusion equation are applied... COMSOL Conference 2007, Boston Z. Shi and X. Wang Oakland University, Rochester, MI, USA
	Comparison of Two-Dimensional PEM Fuel Cell Modeling using COMSOL Multiphysics Two different two-dimensional mathematical models of the one PEM fuel cell are modeled using COMSOL Multiphysics, each considering a different cross-section. The first Models considers the influence of fluid behavior in the channel, while... COMSOL Conference 2006, Boston Z. Shi, X. Wang, and Z. Zhang Oakland University, Rochester, MI
	Computational Analysis of Transport Phenomena and Electrochemical Reactions in a Polymer-Electrolyte-Membrane Fuel Cell 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... COMSOL Conference 2007, Grenoble P. Mina, J. Pauchet, and P. Schott LITEN/DTH/LCPEM , CEA-Grenoble, Grenoble, France
	Computationally Efficient Simulation of PEM Fuel Cells and Stacks A computationally efficient model of a proton exchange membrane (PEM) fuel cell is presented, based on a 2+1D FEM modeling approach. The anode and cathode are included as 2D domains. The coupling between two opposing elements of the... COMSOL Conference 2007, Grenoble J. O. Schumacher¹, J. Eller¹, G. Sartoris¹, and M. Roos² ¹Zürich University of Applied Sciences, Zürich, Switzerland ²NM Numerical Modelling GmbH, Zürich, Switzerland
	COMSOL Modeling and Simulation of a PEM Fuel Cell's Flow Channels Fuel cells are among the most important devices for obtaining electrical energy from hydrogen. Computational Fluid Dynamics (CFD) is a very useful tool for exploring the connection between the transport of reactants and products within... COMSOL Conference 2007, Boston E. Robalinho¹, E. F. Cunha¹, A. B. Andrade¹, M. L. M. Bejarano¹, M. Linardi¹, and E. Cekinski² ¹Instituto de Pesquisas Energéticas e Nucleares (IPEN / CNEN - SP), São Paulo, Brazil ²Instituto de Pesquisas Tecnológicas (IPT - SP), São Paulo, Brazil
	COMSOL Multiphysics^® as a General Platform for the Simulation of Complex Electrochemical Systems Microelectrodes demonstrate that modeling is crucial for understanding the behavior of complex electrochemical systems. The use of the finite element methods in electrochemistry may be of much more general interest for its ability to... COMSOL Conference 2009, Milan A. Lavacchi¹ ¹ Department of Chemistry, University of Firenze, Sesto Fiorentino, FI, Italy
	COMSOL Multiphysics and the Fuel Cell This presentation considers multiphysics modeling of Fuel Cells. The presentation introduces the fundamentals of Fuel Cells, the need for computer aided modeling of them, different difficulties and hindrances one encounters when... COMSOL Conference 2006, Taipei J.J. Hwang National University of Tainan

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Electrochemistry