Simulation Studies on Stress Generation and Volume Expansion due to Electrochemical Lithium Insertion in a Silicon Nanowire
G. Sikha, and J. Gordon
Applied Materials, Inc.
Santa Clara, CA
Silicon electrodes are presently being pursued as the potential negative electrode for lithium-ion batteries owing to its high gravimetric (mAh/g) and volumetric capacity (mAh/L) compared to the existing state of the art graphite electrode. Recent experimental studies have demonstrated the use of nano size Si electrodes which minimizes insertion induced stresses due to facile strain ...
Advanced Magnet Lab
Palm Bay, FL
The paper presents the numerical analysis of quench propagation in a DH magnet wound with a commercially available MgB2 wire in a fiber-glass composite matrix and operating at 20 K. The quench is induced by a small heater located on the first layer of the magnet close to the peak field area. The quench dynamics, peak temperature along with detection requirements are derived from the simulation ...
W. J. Wu
NTU Nano-Bio MEMS Group
National Taiwan University,
This presentation presented the following: * The building of an FEA model of an electric cell actuator using COMSOL Multiphysics * Validation of this model through the AVID and ESPI measurement systems * The building of an FEA model of an electric loudspeaker using COMSOL Multiphysics * Validation of this model throughan acoustic measurement systems This paper is in Chinese.
N. Khoshenvis Gargar, A. Mailybaev, D. Marchesin, H. Bruining
Delft University of Technology, Delft, The Netherlands
Instituto Nacional de Matematica Pura e Aplicada, Rio de Janeiro, Brazil
One of the methods to recover oil from medium and low viscosity in complex reservoirs uses air injection leading to oil combustion. In this case the oxygen in the air burns the heavier components of the oil, generating a heat wave leading to vaporization of lighter components. In this work, we consider a simple model for air injection in light oil reservoir containing only one component in dry ...
Y. El-Qattan , H. Ghali
Electrical Engineering Department, The British University in Egypt (BUE), El Sherouk City, Egypt
This paper presents a successful step towards the development of a “web-based laboratory” for teaching basic, and even advanced, electromagnetic concepts. The main idea is to develop a reusable model for the student to be used exactly as a hardware experiment in a physical laboratory, where he/she can change some of the experiment\'s physical parameters and get corresponding results. The two ...
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 ...
J. Molinero, A. Nardi, P. Trinchero
Amphos 21, Barcelona, Spain
Groundwater is a key factor affecting mine operations worldwide. On one hand, both underground and open pit mines need to pump out groundwater in order to proceed with mineral extraction and increase the stability of rock slopes. On the other hand, groundwater abstractions can produce undesired environmental and social impacts, which should be anticipated in the environmental impact assessments ...
IIT Kharagpur, Kharagpur, West Bengal, India
Electroosmotic flow of power-law fluids in a slit channel(1D) is analyzed. The governing equations are the Poisson–Boltzmann equation, the Cauchy momentum equation, Generalized Smoluchowski equation and the continuity equation are used to get shear stress, dynamic viscosity, and velocity distribution. Simulations are performed to examine the effects of ?H, flow behavior index, double layer ...
F. Alrumayan, A. Alghaith, J. Schneider, , M. Ahmed , M. Al-Qahtani
King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
A 3D model was developed using COMSOL Multiphysics® to study the flow dynamics of the water inside the geometry of the [13N] Ammonia target for medical application . The image attached shows a 3D model of the target. A significant improvement was noted after modifying the geometry as suggested by the model and delivery time of radioactive solution was dramatically reduced. Water and aluminum ...
F. Tariq, V. Yufit, M. Marinescu, G. Cui, M. Kishimoto, N. Brandon
Imperial College London, London, United Kingdom
Solid Oxide Fuel Cells (SOFC) and Li-ion batteries (LIB) are electrochemical devices where performance is dependent on reactions inside porous electrode microstructures. Here we use tomographic techniques to probe 3D electrode structures (anodes and cathodes) at micro-nanometer length scales. Subsequently, micro/nano structural changes in electrodes are characterized and quantified. Utilizing ...