Development of an On-Line Wall-Fouling Sensor for Pipeline Transportation of Heavy Oil-Water Mixtures
S. Rushd, and R.S. Sanders
Chemical & Materials Engineering Department, University of Alberta, Edmonton, AB, Canada
A beneficial method for transporting highly viscous hydrocarbons (e.g. heavy oil and bitumen) through a pipeline is known as Lubricated Pipe Flow (LPF). A major challenge for this technology is flow instability caused by the formation of a wall-coating of oil or the thinning and/or loss of the lubricating water layer in the pipe. This issue can be addressed by using capacitance sensors to measure ...
Technical University of Delft, The Netherlands
In this paper we present a set of numerical models created with COMSOL Multiphysics. The set includes quantitative models of a superconducting tape operated at 77 Kelvin, carrying a transport current and exposed to external magnetic field; an array of such tapes and a triaxial high temperature superconducting cable. Similar models were created in the past. However, an advantage of our approach is ...
E. Scotoni, C. Tozzo, D. Zoccarato, F. Paganini
TMC Italia, Busto Arsizio, Italy
COMSOL, Brescia, Italy
A three phase transformer with very low harmonic pollution transferred back to power line is here presented. In fact, thanks to the described setup, intermediate harmonics (5th and 7th) are not going out back to the power line feeding the primary. These results has been extensively validated versus measurements performed on produced and shipped machine. With these results, TMC is then featuring ...
J. Golebiowski, S. Milcarz
 Department of Semiconductor and Optoelectronics Devices, Technical University of Lodz, Lodz, Poland
The silicon cantilever with the planar coil was applied to the magnetic flux density measurements. The influence of shape and dimensions of planar coil on magnetic energy density was described. In cause of magnetic anisotropy of analyzed silicon structure FEM method and couple field method was applied in simulation. The Lorentz force based sensors owing to their potentially simpler fabrication ...
C. Del Vecchio, G. Agapito, L. Carbonaro, F. Marignetti, E. De Santis, Y. Coia
National Institute for Astrophysics, Arcetri Astrophysical Observatory, Firenze, Italy
University of Cassino and Southern Latium, Cassino, Italy
VRALA is the ideal candidate as an Adaptive Optics actuator at visible wavelengths. Its electric characteristics variations, suitable current commands, and an effective magnetic circuit geometry provide a 2 kHz correction bandwidth and a 25 mm actuator density. The magnetic core allows unprecedented performances with a negligible thermal impact. Pre-shaping the coil currents greatly simplifies ...
University of California, Irvine, CA, USA
Water-and-energy supply is a global issue of paramount importance. The demand for safe potable water is quickly exceeding the limits of natural regional water resources. Like oil, water is a finite resource; unlike oil, however, water has no alternatives. Water, energy and their environmentally sound solutions are interrelated; and of all the present-day environmental problems, those related to ...
S. Korte, and H. Garbe
Universität Hannover, Institut für Grundlagen der Elektrotechnik und Messtechnik, Hannover
Dieses Paper zeigt Untersuchungen zum Zerstörverhalten elektronischer Logikbauelemente bei Beaufschlagung mit elektromagnetischen Feldimpulsen (EMP). Es wird zunächst generell auf den Prozess der Einkopplung transienter Feldverläufe in elektronische Systeme eingegangen. Daraus werden die für eine spätere Simulation benötigten Störsignale innerhalb der Systeme abgeleitet und analytisch ...
P. Masson, and R. Meinke
Advanced Magnet Lab, Palm Bay, Florida, USA
Superconductors have the unique capability of trapping magnetic flux. This feature has the potential to enable and improve several applications including high power density rotating machines. Current material used as trapped flux magnets (TFM) is single domain YBCO that present numerous limitations interms of performance, stability and size. One way to overcome the limitations is to use thin ...
Electromagnetic Parameters Extraction for Integrated-Circuit Interconnects for Open Three Conductors with Two Levels Systems
S.M. Musa, M.N.O. Sadiku, J.D. Oliver
Prairie View A&M University, Prairie View, TX, USA
The accurate estimate of values of electromagnetic parameters are essential to determine the final circuit speeds and functionality for designing of high-performance integrated circuits and integrated circuits packaging. In this paper, a new quasi-TEM capacitance and inductance analysis of multiconductor multilayer interconnects is successfully demonstrated using the finite element method (FEM) ...
N. Stroia, D. Moga, G. Mocanu, Z. Barabas, R. Moga 
Technical University of Cluj-Napoca, Cluj-Napoca, Romania
This work aims to determine optimized configuration using COMSOL Multiphysics® for a class of transducers. Two types of capacitive sensors needed for monitoring and control in agriculture are investigated: a rain sensor and a soil humidity sensor. COMSOL Multiphysics® is used to test various configurations for both transducers, like the number of teeth in the comb, the depth of the teeth, the ...