B. Hannon, P. Sergeant
Ghent University, Ghent, Belgium
In the field of electric machines, a trend towards both higher efficiency and higher power density is observed. This has led to a growing importance of Permanent Magnet Synchronous Machines. However, the magnets used in these machines risk demagnetization at high temperatures. Especially in machines operated at high speeds. A commonly proposed solution is the shielding cylinder (SC), a ...
INP Greifswald e.V., Greifswald, Germany
2D self-consistent nonequilibrium model of a free-burning arc in argon has been developed. The model is based on the COMSOL Multiphysics® platform and describes in a self-consistent manner the fluid dynamics, the heat transfer, the magneto-electrodynamics, and species conservation. The governing equations are solved applying the COMSOL Multiphysics® interfaces Laminar flow, Electric Currents, ...
N. Varga, I. Perales, A. Portugal
ATEKNEA Solutions Hungary, Budapest, Hungary
ATEKNEA Solutions Catalonia, Barcelona, Spain
The application of pulsed electric fields (PEF) is well known in the food industry as an advanced technology for mass transfer improvement. A new potential adaptation area of PEF could be extracting a valuable antioxidant called polyphenol from wet olive pomace (WOP) which is a by-product of olive oil production. The modelling includes the PEF effects on the WOP which is flowing through a ...
C. Horch, S. Schlayer, and F. Stallmach
Faculty of Physics and Earth Sciences, University of Leipzig, Leipzig, Germany
For low-field NMR (Nuclear magnetic resonance), NdFeB permanent magnet arrangements are proposed to provide the static polarizing magnetic field. Especially a parallel and a circular arrangement of the permanent magnets, iron yokes and small shim magnets were tested and improved by COMSOL. The intent was to guide the design and the construction of NMR magnets by calculating the magnetic field ...
F. Roy1, B. Dutoit1, F. Sirois2, and F. Grilli3
1École polytechnique fédérale de Lausanne, Lausanne, Switzerland
2Éole polytechnique de Montréal, Montréal, Canada
3F. Grilli, Los Alamos National Laboratory, Los Alamos, NM, USA
Thin films are very promising for the design of novel and an efficient Fault Current Limiter (FCL) made of high-temperature superconductors (HTS). However, before considering the use of these in a power grid, their thermal and highly non-linear electromagnetic behavior in the presence of over-critical currents needs to be investigated in detail.In this paper, we propose a numerical approach to ...
Simulation-based Analysis of the Spatial Sensitivity Function of an Electrical Capacitance Tomography System
A. Fuchs, and H. Zangl
Institute of Electrical Measurement and Measurement Signal Processing, Graz University of Technology, Graz, Austria
This paper investigates the effects of the soft field character of an Electrical Capacitance Tomography system by means of analyzing the 3D sensitivity distribution of the pipe interior using Finite Element Analysis.The aim of the determined sensitivity is to overcome restrictions caused by the soft field without being forced to use (active) guarding strategies.
The University of Tokyo, Japan
In this work, the pulsed-field magnetization of high-temperature bulk superconductors is investigated.The presentation is written in Japanese.
M. C. Hollenbeck1,2, H. Zohdy2,3, R. Brower2, R. Ewing2, and K. Stevens1
1University of Utah, Salt Lake City, UT, USA
2AFRL/IFTA, Wright Patterson, OH, USA
3Oakland University, Rochester, MI, USA
The research presented here shows a multiphysics model for a polymerelectrolyte transistor (PET) simulated in COMSOL Multiphysics.Dynamic transient response and current-voltage characteristics are determined from multiple simulations of an alkaline-acid-alkaline PET in a common collector configuration, showing transistor activity in the ionic currents of the device. This shows that increasing ...
H. Lorenzen, J. Timmerberg, and S. Mylvaganam
Department of Electrical Engineering, UAS OOW, Wilhelmshaven, Germany
Department Technology/Engineering, Telemark University College, Porsgrunn, Norway
Efforts involving simulation of transmission line networks necessitate the accurate values of the parameters of the lines. In this paper, as an attempt in estimating such parameters, the parameters of high voltage asymmetric power lines are calculated. In the process of estimation, the three phase equivalent circuit model is used. The resistance and inductance of such lines are dependent on ...
R. Bikky, N. Badi, and A. Bensaoula
University of Houston, Houston, TX, USA
In this work, we present the effective properties of nanodielectrics with gold (Au) nanoparticles embedded in polymer (Polyvinyl Pyrrolidone (PVP)) matrix, calculated by using finite element method (FEM) based simulation in COMSOL Multiphysics software. Drude model is used to calculate size dependent complex dielectric function of Au. EMTs of Maxwell-Garnett, Bruggeman and Looyenga models are ...