Keisoku Engineering System Co., Ltd,. Chiyoda-ku, Tokyo, Japan
The reciprocating paddle cell is a known practical method for depositing alloy films on wafer substrates. Recently, the mass transfer boundary layer within an industrial wafer plating cell was studied based on the measurement of limiting current. It was indicated that a shear-plate fluid agitation mechanism is capable of generating a thin (i.e.
Numerical Simulation of Carbon Steel Corrosion Exposed to Flowing NaCl Solutions Through an Annular Duct - new
A. Soliz, K. Mayrhofer, L. Caceres
Department of Interface Chemistry & Surface Engineering, Max-Planck-Institut für Eisenforschung, Düsseldorf, Germany
Department of Chemical Engineering, University of Antofagasta, Antofagasta, Chile
A three-dimensional mathematical model under stationary conditions have been established to understand the corrosion of carbon steel cylindrical samples immersed in flowing NaCl solution through an annular duct. The migration, diffusion and convection mass transfer mechanisms were solved using the Nernst–Planck equation coupled to the Navier-Stokes equation. A corrosion model based on the mixed ...
D. Mi ,
 KEISOKU Engineering System Co., Ltd., Chiyoda-ku, Tokyo, Japan
Optimization of a typical electrochemical system with insulating shields is considered in this work, which objective is to reduce the current peak due to singularity and smooth the current density distribution along electrode surface. Moving mesh method was adopted to allow change in design variables, i.e., position and width of the insulating shields. It was found that combining optimization ...
Y. Parikh, V. Penmatsa, J. Yang, and C. Wang
Department of Mechanical & Material Science Engineering, Florida International University, Miami, FL, USA
An Enzymatic Biofuel Cell (EBFC) converts the chemical energy in biological fuels into electricity. In this work, we optimize the performance of the Carbon-Micro Electro Mechanical system in an EBFC by using COMSOL Multiphysics. With a simple model, we realized that most of the glucose reacts with enzymes at the top of the electrode posts, while the bottoms of the posts remain deficient of the ...
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 ...
Optimization of the Lithium Insertion Cell with Silicon Negative Electrode for Automotive Applications
R. Chandrasekaran, and A. Drews
Research and Advanced Engineering
Ford Motor Company
The US Advanced Battery Consortium (USABC) has established goals for long term commercialization of advanced batteries for electric vehicle applications. In this work, a dual lithium-ion insertion cell with silicon as the negative electrode and an intercalation material as the positive electrode is modeled using COMSOL Multiphysics. Both are composite porous electrodes with binder, void ...
M. Vallance, and R. White
General Electric Global Research Center, Niskayuna, NY, USA
Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA
Sodium/metal chloride storage batteries, used in hybrid propulsion applications, provide high energy and power densities safely and reliably. To understand the dynamics of electrochemical cycling, a high-temperature sodium/ferrous chloride storage cell was modeled in two dimensions. The time-dependent solution shows that a reaction front, starting at the interface with the negative electrode, ...
G. C. Bandlamudi[1,2], C. Siegel, C. Heßke, and A. Heinzel[1,2]
ZBT Duisburg, Duisburg, Germany
University of Duisburg-Essen, Duisburg, Germany
High temperature polymer electrolyte membrane fuel cells (HT PEMFCs) are very promising technologies when used in combined cooling and heating power (CCHP) systems. They are operated at 160°C, offering the possibility of high tolerance to fuel impurities and a possibility to use the heat generated for cooling and heating purposes, leading to higher total system efficiency. Employing a 24 ...
G. Minton , R. Purkayastha , S. Walus , M. Marinescu , T. Zhang , G. Offer ,
 Oxis Energy Ltd, Oxford, United Kingdom
 Imperial College London, London, United Kingdom
During the basic operation of a lithium-sulfur (Li-S) cell, sulfur molecules are required to undergo a complex mix of electrochemical and chemical reaction processes. To date, almost all modeling of Li-S cell behavior has been undertaken using electroneutral, structurally homogenized, cell scale models accounting for most of these processes. The presented work was undertaken in order to try and ...
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 ...