COMSOL Multiphysics® Based Identification of Thermal Properties of Mesoporous Silicon by Pulsed Photothermal Method - new
N. Semmar, I. El Abdouni, A. Melhem
GREMI-UMR7344, CNRS/University of Orléans, Orléans, France
The silicon is mainly known under its single-crystal shape and polycrystalline. Since a few decades, a new type of morphology is developed: the porous silicon (p-Si). Meso-porous silicon (Mp-Si) is one of promising materials for future microelectronic chips multi-functionalization systems, and for micro-sensing devices. For thermal properties investigation many experimental systems were ...
Parameter Estimation in a Single Particle Model Using COMSOL Multiphysics® Software and MATLAB® Optimization
B. Rajabloo , M. Désilets , Y. Choquette ,
 Département de Génie Chimique et de Génie Biotechnologique, Université de Sherbrooke, QC, Canada
 Institut de recherche d’Hydro-Québec, Varennes, QC, Canada
When it comes to study the behavior of the secondary batteries, physics-based models are more representative of the real behaviour than equivalent circuit models, especially for the estimation of the life and capacity fading. On the other hand, the complexity and computational cost of sophisticated physics-based models like pseudo two-dimensional (P2D) models justify the use of more simplified ...
Z. Umar, D. Ledwoch, L. Komsiyska, S. Vasić[
EWE-Forschungszentrum für Energietechnologie e. V, Oldenburg, Germany
In general battery cells are charged/discharged using constant current or constant power expressed as C-Rates and P-Rates respectively. We are developing a single cell-level Li-Ion battery model in order to simulate the performance and the physicochemical phenomena under power discharging mode (P-Rate). The P-Rate is defined as the measure of the rate at which a battery charges/discharges ...
H. White, L. Luo
Department of Chemistry, University of Utah, Salt Lake City, UT, USA
A characteristic feature of nanochannels is that surface properties (e.g., electrical charge) play a more significant role in the transport of fluid and electrolyte. Two oppositely directed flows (electroosmotic flow and pressure-driven flow) determine the flow profile at the nanopore orifice as well as electrolyte distribution. Once there are two electrolyte solutions with different ...
A. K. R. Paul , R. D. Pal ,
 CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, India
 Academy of Scientific and Innovative Research, Chennai, Tamil Nadu, India
A lithium-ion battery comprises of two intercalating electrodes separated by a membrane, sandwiched between aluminum and copper current collecting plates. The battery performance depends upon several parameters and its operating conditions. In this work we developed a model for a lithium iron phosphate battery and validated our results with experimental charge-discharge curves. We however note ...
F.T. Wandschneider, M. Küttinger, P. Fischer, K. Pinkwart, J. Tübke, H. Nirschl
Fraunhofer-Institute for Chemical Technology, Pfinztal, Germany
Karlsruhe Institute for Technology, Karlsruhe, Germany
A two-dimensional stationary model of a vanadium oxygen fuel cell is developed in COMSOL Multiphysics®. This energy storage device combines a vanadium flow battery anode and an oxygen fuel cell cathode. The oxygen reduction reaction generates additional water, leading to a degradation of the catalyst performance over time. A logistic function is introduced to the Butler-Volmer equation in order ...
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 ...
Numerical Analysis of Propeller-induced Low-frequency Modulations in Underwater Electric Potential Signatures of Naval Vessels in the Context of Corrosion Protection Systems
D. Schaefer, J. Doose, A. Rennings, and D. Erni
General and Theoretical Electrical Engineering (ATE), Faculty of Engineering, University of Duisburg-Essen, Duisburg, Germany
Technical Center for Ships and Naval Weapons (WTD 71), Bundeswehr, Eckernförde, Germany
Since October 2009 the laboratory of ATE has carried out collaborative research with the WTD 71 that aims for prediction, reduction and optimization of so-called underwater electric potential (UEP) signatures. COMSOL is used to simulate potential distributions in the context of impressed current cathodic protection (ICCP) systems. The electrode kinetics is considered by using boundary conditions ...
P. Singh, N. Khare, P. K. Chaturvedi
Banasthali University, Banasthali, Rajasthan, India
EOS Energy Storage, Edison, NJ, USA
SRM University, Ghaziabad, Uttar Pardesh, India
Introduction: Recently, Li-ion battery is being widely used as power source for various applications from electronic gadgets to automotive industry. The performance and cycle life of Li-ion battery are becoming gradually important issues as the applications are shifting from small scale consumer electronics to dynamic power applications (Electric Vehicles, Hybrid Electric Vehicles). To create a ...
C. Siegel[1,2], G. Bandlamudi[1,2], and A. Heinzel[1,2]
Zentrum für BrennstoffzellenTechnik (ZBT) gGmbH, Duisburg, Germany
Institut für Energie- und Umweltverfahrenstechnik, University of Duisburg-Essen, Duisburg, Germany
Phosphoric acid doped polybenzimidazole (PBI) membranes are commonly used in today’s high-temperature polymer-electrolyte-membrane (HTPEM) fuel cell technology. COMSOL Multiphysics is used to model and simulate the three-dimensional, single-phase, non-isothermal overall cell behaviour at different operating points. The sol-gel PBI/H3PO4 membrane behaviour is modeled using an Arrhenius ...