A. Polit, R. Jez
ABB Corporate Research Center, Krakow, Poland
The air gap is one of the most crucial part of magnetic circuits, especially in high-power inductors. It significantly modifies the parameters of magnetic devices by increasing the saturation current, linearizing B-H curve of magnetic circuit and causing a decreasing in the inductance. Therefore the optimal selection of shape and dimensions of the air gap is very important from the design point ...
O. Vogel, and J. Ulm
Proportional solenoids are well-known and used in a wide range of applications today. This paper is about methods of influencing the characteristic force-stroke-curves of magnetic actuators by means of different pole geometries. The conical design of the stator pole which is mostly used to accomplish proportional solenoids is analyzed by both a simple analytic reluctance model and a FEM model ...
Multiphysics Simulation of Thermoelectric Systems - Modeling of Peltier-Cooling and Thermoelectric Generation
Fraunhofer-Institute for Physical Measurement-Techniques (IPM), Freiburg, Germany
Electro-thermal interaction is commonly considered only as a matter of joule heating. In addition, the Seebeck-, Peltier- and Thompson-Effects are significant in materials with high thermoelectric figure of merit Z. These thermoelectric materials have a high Seebeck-coefficient α, a good electric conductivity σ, and a poor thermal conductivity λ. They have widespread areas of ...
M. Puskarczyk, R. Jez 
ABB Corporate Research Center, Krakow, Poland
Multilayer planar transformers are widely implemented in power electronic applications. The design process of these elements is complicated due to the complexity of a magnetic circuit and high frequency interactions between windings. Additionally, an analytical approach to the analysis (based on mathematical formulas) can be uncertain. The applied FEM method of the analysis can be a solution to ...
S. Meenatchisundaram, S. M. Kulkarni, S. Bhat
Department of Instrumentation and Control Engineering, Manipal Institute of Technology, Manipal, Karnataka, India.
Department of Mechanical Engineering, National Institute of Technology, Surathkal, Karnataka, India.
Piezoresistive pressure sensors have received much attention over the years because of low cost, simple measurement techniques, etc. There is a challenge in design with respect to appropriate positioning, shape and temperature compensation. Different models of piezoresistive pressure sensors are proposed to enhance its sensitivity in terms of output voltage. This paper aims in sensitivity ...
Electrical Conductivity Modeling and Validation in Unidirectional Carbon Fiber Reinforced Polymer Composites
P. Banerjee, J. L. Schmidt
Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO, USA
Carbon fiber (CF) reinforced polymer composites (CFRP) have begun to replace Al-Zn-Mg alloys in applications which require high strength-to-weight ratios. The anisotropy of CFRP composites is a result of melt crystallized extrusion techniques that impart an inherent directionality to the CFs and the associated material’s properties. Electrical conductivity was modeled across the entire CF ...
University of Manchester, Manchester, UK
This report mainly discusses the implementation and results of a project proposal, “Modelling using Finite Element Methods”. The report is devoted to implementation, which is a model of an electromagnet. The software tool that is used to model the electromagnet is COMSOL Multiphysics®, a commercial FEA package provided by the University of Manchester, Computer Science School. Additionally, the ...
COMSOL Multiphysics® Software and PV: A Unified Platform for Numerical Simulation of Solar Cells and Modules
M. Nardone ,
 Bowling Green State University, Bowling Green, OH, USA
Introduction: Existing solar cell (photovoltaic, PV) device simulation software is either open source with limited capabilities (1D only) [1,2] or extremely expensive with obscure functionality . PV researchers need an accessible and versatile simulation tool to optimize existing technologies and to reduce the time from concept to prototype for new technologies. This work demonstrates how ...
Design Optimization of Printed Circuit Board Embedded Inductors through Genetic Algorithms with Verification by COMSOL Multiphysics®
M. Madsen, J. Mønster, A. Knott, M. Andersen
Technical University of Denmark, Lyngby, Denmark
This paper describes the implementation of a complete design tool for design, analysis, optimization and production of PCB embedded inductors. The paper shows how LiveLink™ for MATLAB® and COMSOL Multiphysics® make it possible to combine the scripting and calculation power of MATLAB with the simulation power of COMSOL Multiphysics in order to get an extremely efficient tool for inductor design. ...
J. Doody , R. Vieira , B. LaBombard , R. Leccacorvi , J. Irby , R. Granetz 
 Plasma Science and Fusion Center - Massachusetts Institute of Technology, Cambridge, MA, USA
The goal of a tokamak is to use high magnetic fields to contain plasma and produce nuclear fusion that can be used for power generation. MIT’s Plasma Science Fusion Center (PSFC) and collaborators are proposing a machine, the Advanced Divertor eXperiment (ADX) to test new technology for these systems at reactor level heat fluxes and magnetic fields. COMSOL Multiphysics® software is used to ...