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Simulation and Analysis of a Borehole Transient Electromagnetic Reservoir Monitoring System

S.M. Dutta[1], A. Reiderman[1]
[1]Baker Hughes, Houston, TX, USA

Waterflooding and steam-flooding are used worldwide for EOR. Recently, CO2-flooding has attracted global attention as a means of EOR as well as for carbon capture and sequestration. These processes cause significant changes over time in the fluid composition of oil reservoirs. This paper demonstrates the feasibility of a borehole transient electromagnetic (TEM) system that can map the fluid ...

Finite Element Analysis of Superconductive Tape by Using T-Ω Formulation

H. Arab[1], S. Memiaghe[1], C. Akyel[1]
[1]Ecole Polytechnique of Montreal, Montreal, QC, Canada

This paper deals with a numerical modelling technique based on finite elements method for computing magnetic field and current density distributions in high temperature Superconducting (HTS) tapes. The model is developed using the T-ῼ formulation for which the degree of freedom (DOF) and the CPU time decreased considerably in AC losses analysis, and it is also observe that T-ῼ formulation give ...

Simulation of Microfabricated Linear Ion Trap

J. Heinonen[1], M. Erdmanis[1], I. Tittonen[1]
[1]Aalto University, Department of Micro- and Nanosciences, Espoo, Finland

We present a simplified 3D model that simulates the operation of a linear microscale integrated ion trap. It employs a set of metalized electrodes, which are formed on top of an insulator layer on silicon substrate. The confinement in all three dimensions is provided by the application of the specific AC and DC voltages to the corresponding trap electrodes. The distribution of the trapping ...

Model of Microwave-Assisted Thermal Adhesion of Synthetic Leather to a Plastic Substrate

S. Soldatov [1], J. Meiser [2], B. Lepers [1], G. Link [1], J. Jelonnek [3],
[1] Karlsruhe Institute of Technology (KIT, IHM), Karlsruhe, Germany
[2] Carl Meiser GmbH & Co. KG, Albstadt, Germany
[3] Karlsruhe Institute of Technology (KIT, IHM, IHE), Karlsruhe, Germany

The lamination of substrates with thin coatings is commonly used in furniture, automotive and avionic industries. In the lamination process the hot melt adhesives are widely used and typically activated at temperatures from 80°C to 140°C by resistive heating. This requires a heat transfer through the coating and/or the substrate. To make the process more flexible, to decrease its energy ...

Calculating Power Loss of Contactless Power Transmission Systems with Ferrite Components

S. Hanf[1] and D. Kürschner[1]
[1]Institut für Automation und Kommunikation Magdeburg, Magdeburg, Germany

In this paper a methodology for calculating loss within contactless inductive power transmission systems, resulting from hysteresis and eddy current effects, is presented. The usage of the mathematical models of Stoll and Steinmetz for the determination of core loss with COMSOL is explained. Apart from the metrological verification of selected aspects of power loss, the results of a parametrical ...

Introduction to COMSOL based Modeling of Levitated Flywheel Rotor

A. Pilat
AGH University of Science and Technology
Kraków, Poland

This elaboration presents a pre-study on automatic rotor construction for the flywheel energy storage system dedicated to operate in the levitation mode. The optimization profile model is used as a basic profile source. The 3D flywheel shape is generated on the base of obtained profiles. Eigenfrequencies are calculated to validate the operation on rigid mode. A steel and aluminum based ...

基于COMSOL的随钻电磁波电阻率仪器WPR探测特性研究

康正明 [1], 柯式镇 [1], 姜明 [1], 尹成芳 [1],
[1] 中国石油大学(北京),北京,中国

引言:随着水平井和大斜度井的增多,随钻测井(LWD)技术越来越重要。随钻电磁波电阻率测井在随钻测井中应用最为广泛。在国外,随钻电磁波电阻率测井方法已经成为一种成熟的测井技术,但我国仍处于研究发展阶段。20 世纪 90 年代,大庆成功地研制出2MHz电磁波电阻率测井仪器。本世纪,中油测井成功引进并研制出了随钻电磁波电阻率测井仪WPR。仪器仿真对国内引进该仪器进行生产以及实际测井资料处理解释具有指导意义。本文借助COMSOL Multiphysics® 仿真平台,建立了二维轴对称模型。模型分为三层和多层,选择 AC/DC 模块中的磁场。通过 LiveLink for MATLAB® 实现脚本加载模型并控制数据按一定格式输出为文本文件。考查了 APS 公司的随钻电磁波电阻率仪器WPR仪器的探测特性,对比了仿真结果与 APS 公司商业宣传介绍的仪器特性。同时对比了 COMSOL ...

Modeling of Lorenz Force Flowmeter for Molten Metal Flow Application

T. V. Shyam[1], B. S. V. G. Sharma[1], Mrigendra Kumar Mrityunjaya [2], Dr. Ravinder Agarwal[2]
[1]Reactor Engineering Division, Bhabha Atomic Research Centre, Mumbai, India
[2]Thapar University, Patiala, India

Flow measurement of molten metals is a formidable task considering the hostile conditions. Many electromagnetic methods have been evolved for measurement of flow of conductive medium. The Lorenz force velocimetry is promising considering its non-intrusive nature. The Lorenz force velocimetry is an electromagnetic flow measurement method that is based on exposing molten metal flow to a ...

Modeling of Piezoelectric Transducers Made of PZT for Energy Harvesting

J. Golebiowski [1], P. Bakolik [2],
[1] Lodz University of Technology, Department of Semiconductor and Optoelectronics Devices, Poland
[2] Lodz Univeristy of Technology, Poland

This work shows the results of modeling of piezoelectric transducers used to recover energy from mechanical vibrations. The analysis consists of usefulness of commercial ceramic PZT transducers to power electronic systems. Determined output load characteristics, characteristics of the effect of stress on the output power. Systems, which recover electrical energy for example from mechanical ...

Topographic Effects on Radio Magnetotelluric Simulations on Levees: Numerical Modeling for Future Comparison With Fields Results

R. Duval[1], C. Fauchard[1], R. Antoine[1]
[1]ERA23-IFSTTAR, Laboratoire des Ponts et Chaussées de Rouen, CETE-Normandie Centre, France

We study the topography influence of levees on the electric resistivity signal obtained with the Radio-Magnetotelluric method. Field measurements have been modeled with COMSOL, using the AC/DC and RF Modules. A levee situated in Orléans along the Loire river (France) has been considered in order to design a model tacking account of the skin depth and the incident wavelength, keeping a constant ...