Electric Resistance Welding Process in Tube Manufacturing: Comparison Between a Numerical Model and a Set of Plant Trials - new
C. Cincunegui, P. Marino, D. Tieppo, E. Martinez
Tenaris, Campana, Buenos Aires, Argentina
In welded tube manufacturing, the electric resistance welding (EW) process begins with a coiled plate of steel with appropriate thickness and width to conform the produced tube. The strip is pulled through a series of rollers that gradually cold conform it into a tubular shape. The edges of the cylindrical plate come together forming a V. The strip edges are heated with a high frequency power ...
S. Manoj, R. Giri, S. Selvakumar
Rajalakshmi Engineering College, Chennai, Tamil Nadu, India
Gaseous exhaust of different industries contains dust particles of different chemical precipitates that are harmful for the environment. Electrostatic Precipitators are very often used in industries like power plant to filter their gaseous exhaust and to prevent the atmosphere to being polluted. Electrostatic Precipitators are very efficient in dust particle collection from the flue gas. ...
3D Multiphysics Modeling of Bulk High-Temperature Superconductors for Use as Trapped Field Magnets - new
M. Ainslie, J. Zou, D. Hu, D. Cardwell
Department of Engineering, University of Cambridge, Cambridge, UK
The authors are currently investigating the use of bulk high temperature superconductors as trapped field magnets (TFMs) in order to increase the electrical and magnetic loading of an axial gap, trapped flux-type superconducting electric machine. In electric machines, the use of superconducting materials can lead to increases in efficiency, as well as power density, which results in reductions ...
R. Escarela-Perez, E.A. Gutierrez-Rodriguez, J.C. Olivares-Galvan, M.S. Esparza-González, and E. Campero-Littlewood
Departamento de Energia, Universidad Autonoma Metropolitana - Azcapotzalco, Mexico D.F., Mexico
Instituto Tecnologico de Aguscalientes, Aguascalientes, Mexico
This work is concerned with the study of the asymmetrical phenomenon observed in three-phase transformers during the standard short-circuit test. The purpose of our work is to see if the asymmetric measurements can be predicted with the use of 2D finite-element models. To this end, we use the AC/DC Module of COMSOL Multiphysics. A multi-port network impedance is then determined to explain the ...
3M Canada Company, London, ON, Canada
Finite element analysis provides new insights into the electrical behavior of conducting adhesives. We show that at a contact between a spherical conducting particle and a flat conducting substrate the current distribution is non-uniform: the current is concentrated at the periphery of the contact. In practice, the current concentration has important implications. We further shed light on what ...
L. Santandrea, and Y. Le Bihan
Laboratoire de Génie Electrique de Paris, Gif-sur-Yvette, France
Eddy current testing (ECT) is widely used to check the integrity of electrically conducting parts and notably to detect flaws. It is based on the interaction between a probe and the part under testing. The finite element method (FEM) is well fitted to the modelling of these kinds of problems because of its large flexibility which allows to deal with complex probe and part configurations. In this ...
P. Hainke, D. Kappe, A. Hütten
Universität Bielefeld, Bielefeld, Germany
As the importance of nanoparticles is growing more and more, controlling and understanding the properties of nanoparticles became a focus of research. In this field Meyer at al.  are researching the GMR effect in granular gels to develop magnetoresistive sensors. The GMR in granular gels is simulated to investigate the physical processes in those systems. As soon as the models coincide with ...
Numerical Simulation of Chamber Design for Pulsed Electric Fields Processing of Wet Olive Pomace - new
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 ...
B. Oetiker, B. Friedman, and H.E. Hall Jr.
Department of Physics, Sam Houston State University, Huntsville, Texas, USA
High-resolution imaging is useful in oil and gas exploration to identify producing fractures that can be in the millimeter thickness range. In principle, high-resolution imaging maybe achieved using “current injection” to measure the electrical conductivity of the formation. Two current injection devices are compared for possible use as Logging While Drilling (LWD)imaging: The ...
A. Kalinowski, and J. Maguire
Naval Undersea Warfare Center/Div. Npt. , Newport, RI, USA
The paper addresses a class of problems for modeling and consequently simulating the electromagnetic field radiation pattern from a two arm Archimedes spiral coil. The performance of particular interest is knowledge of the radiated magnetic field H and electric field E in the neighborhood of the coil. The results in this paper illustrate how COMSOL is used to solve for the radiated ...