E. Gongadze, S. Petersen, U. Beck, and U. van Rienen
Institute of General Electrical Engineering, University of Rostock, Rostock, Germany
Institute of Electronic Appliances and Circuits, University of Rostock,
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 Chapman-Stern) are numerically solved for a flat surface electrode in the 3D Electrostatics application mode of COMSOL Multiphysics® 3.5a. The values of the electric ...
F. Lima, U. Mescheder, H. Reinecke
Hochschule Furtwangen University, Furtwangen, Baden-Wuerttemberg, Germany
Institut für Mikrosystemtechnik, Freiburg im Breisgau, Baden-Wuerttemberg, Germany
Electrodeposition has a major advantage over other methods of thin film deposition. It allows deposition at atmospheric pressure and room temperature, requiring inexpensive equipment. However, there are several parameters which can influence an electroplated metal layer quality. The current density distribution is taken into consideration. The Hull cell is an electrodeposition tank with a ...
TVS Motor Company Ltd., Hosur, Tamil Nadu, India
The proposed State of Charge (SOC) governed fast charging method for secondary lithium based batteries charges a battery many times faster than the normal Constant Current-Constant Voltage (CC-CV) charging and reduces the side-effects generally accompanied by various fast charging methods. The proposed charging algorithm takes into account the varying internal impedance of the battery at ...
S. Das, J. Li, R. Hui
University of Kansas, Lawrence, KS, USA
Kansas State University, Manhattan, KS, USA
The adoption of micro- and nanostructured electrodes is a promising technique to improve the performance of Li-ion battery, which increases the electrode surface area and improves the efficiency of ion exchange between the electrode and electrolyte. This performance improvement is supported by the results of our numerical simulation based of a Li+ battery in COMSOL Multiphysics® software. The ...
G. Madabattula, S. K. Gupta
Department of Chemical Engineering, Indian Institute of Science, Bangalore, Karnataka, India
Low cost high energy density batteries that can be charged and discharged rapidly are required in a number of applications. Tapping energy from renewal resources such as solar, wind and tide requires rapidly generated energy to be first stored and then used round the clock. Storing energy of a moving vehicle as it slows down and recovering it to accelerate the vehicle later can significantly ...
D. Adair, K. Ismailov, Z. Bakenov
School of Engineering, Nazarbayev University, Astana, Kazakhstan
CPS, Nazarbayev University, Astana, Kazakhstan
Institute of Batteries, Astana, Kazakhstan
A design for the thermal management of the media used for packing Li-ion batteries used in hybrid and electric vehicles has been developed. The design satisfies all thermal and physical issues relating to the battery packs used in vehicles such as operating temperature range and volume, and, should increase battery life cycle and charge and discharge performances. Particular attention was ...
H. Kwon, and E. Akyiano
Dept. of Engineering and Computer Science
Berrien Springs, MI
In this paper, the cyclic voltammetry behavior of Ferrocyanide/Ferricyanide, which is commonly used for electrochemical DNA detection experiment, was studied in the commercial EQCM-D setup (Q-sense) using the COMSOL Multiphysics. The model was established in a 3D geometry of QCM liquid cell. The simulation shows depletion of concentration of ferrocyanice following applied electrode ...
Transient Modelling of a Fluorine Electrolysis Cell; Fully Coupled Electric Currents, Heat-Transfer, Diluted Species Transport and Laminar Bubbly Flow
R. Pretorius, P. L. Crouse, and C. J. Hattingh
University of Pretoria, Pretoria, Gauteng, South Africa
Metallurgical Testing and Consultation (MTC) cc, Farrarmere, South Africa
A laboratory-scale fluorine reactor was simulated with COMSOL Multiphysics®. This model employs fundamental fully coupled electron-, heat-, mass- and momentum transfer (two-phase) equations to deliver a transient model of the above-mentioned reactor. Quasi-steady-state results were produced for the current density, electric field, temperature, reactive species concentration, gas- and liquid ...
2D Axisymmetric Simulation of Pulsed Electrochemical Machining (PECM) of Internal Precision Geometries
M. Hackert-Oschätzchen , M. Kowalick , R. Paul , M. Zinecker , D. Kuhn , G. Meichsner , A. Schubert ,
 Professorship Micromanufacturing Technology, Technische Universität Chemnitz, Chemnitz, Germany
 Fraunhofer Institute for Machine Tools and Forming Technology, Chemnitz, Germany
 Professorship Micromanufacturing Technology, Technische Universität Chemnitz, Chemnitz, Germany; Fraunhofer Institute for Machine Tools and Forming Technology, Chemnitz, Germany
This study presents investigations on a developed process design for manufacturing internal precision geometries by pulsed electrochemical machining (PECM) with help of multiphysics simulations. Therefore, a 2D axisymmetric transient model was created. The considered physical phenomena are fluid dynamics, thermodynamics, electrodynamics, the formation and transport of hydrogen as well as ...
SPAWAR Systems Center (SSC) ATLANTIC, Charleston, SC, USA
Additive manufacturing uses 3D printing to build physical parts from CAD-based designs. The technology includes fused deposition modeling (FDM) and selective laser sintering (SLS) methods. 3-D printing is of particular interest for smaller, one-of-a-kind, customizable products. A cube satellite (CubeSat) containing fiber reinforced SLS parts has been successfully launched (Ref 1). Lower ...