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Suchbegriff:

Computational Fluid Dynamics Approach to Evaluate Electrostatic Precipitator Performance

M. Ahmadi [1]
[1] Faculty of Engineering Technology, University of Twente, Enschede, The Netherlands

Electrostatic precipitation is an extremely efficient way of filtering fine particles from the airstream. Electrostatic precipitators (ESPs) can control airborne emission without significantly slowing down the rate of flow, because of the low pressure drop across this type of filters. A ... Mehr lesen

Electromagnetic and Electrostatic study in High Voltage Switchyard

R. Devanathan [1], B.Mutum [1], L.Obiroy [2], C Manivannan [3], R Malarvizhi [3],
[1] Hindustan University, Rajiv Gandhi Salai, Padur (via), Kelambakkam, Chennai, India
[2] Hindustan University, Rajiv Gandhi Salai, Padur (via), Kelambakkam, Chennai, India
[3] L & T Constructions, Power Transmission & Distribution, Chennai, India

The paper reports on an electromagnetic field study of a 765 kV switchyard. The study is performed using COMSOL Multiphysics® software. The study involves geometric modelling, finite element analysis, and numerical solution of the linearized equations. For the system studied, it was ... Mehr lesen

Study of Capacitance in Electrostatic Comb-Drive Actuators

P. Hanasi [1], B. G. Sheeparamatti [1], V. Abbigeri [1], N. Meti [1],
[1] Visvesvaraya Technological University, Belagavi, Karnataka, India

Capacitor is mainly defined as two conducting plates that can hold the opposite charges on it. These plates can be used either as a sensor or an actuator. If the relative distance between the two conductors changes as result of given input, then capacitance values will change. This ... Mehr lesen

Electrostatic Precipitators - Modeling and Analytical Verification Concept

D. Rubinetti [1], Dr. D. Weiss [1], W. Egli [2],
[1] Institute of Thermodynamics and Fluid Engineering, University of Applied Sciences Northwestern Switzerland, Windisch, Switzerland
[2] EGW Software Engineering, Switzerland

Electrostatic precipitators (ESP) are a reliable technology to control emissions of airborne particles in a series of applications such as coal-fired power plants, cement plants or even for domestic fireplaces. Numerical calculations allow further development of electrostatic ... Mehr lesen

PIC simulation of a 2.45 GHz ECR ion source using Comsol tensorial permittivity RF capability

L. Neri¹, G. Castro¹, O. Leonardi¹, L. Celona¹, A. Miraglia¹, S. Gammino¹, G. Colonna², A. Laricchiuta², F. Grespan³, M. Comunian³, G. Russo⁴, A. Coco⁴, S. Boscarino⁴, G. Bilotta⁵
¹INFN – Laboratori Nazionali del Sud, 95123, Catania, Italy
²CNR – Istituto per la Scienza e Tecnologia dei Plasmi, Sezione di Bari, 70126, Italy
³INFN – Laboratori Nazionali di Legnaro, 35020, Padova, Italy
⁴UNICT – Dipartimento di Matematica e Informatica, Catania, 95131, Italy
⁵INGV – Osservatorio Etneo, Sezione di Catania, 95125, Italy

Particle In Cell (PIC) simulation tool for the simulation of 2.45GHz ECR ion source was developed tanks to Comsol Multiphysics RF module capability to compute electromagnetic field propagation imposing a tensorial permittivity with real and complex parts. A tensorial description is ... Mehr lesen

Interactive Design of an Electrostatic Headphone Speaker Using COMSOL Server™

B. A. Marmo [1], M. P. Snaith [1],
[1] Xi Engineering Consultants, Edinburgh, United Kingdom

An electrostatic headphone includes many interrelated design elements that affect the frequency response of the headphone and the users listening experience. Xi Engineering Consultants (XI) partnered with Warwick Audio Technologies (WAT) to investigate the complex behavior of one-side ... Mehr lesen

Modeling of a Hybrid-Integrated Moving Magnet Drive for a Quasi-Static 2D-MEMS Vector Scanner

Klemens Birnbaum¹, Martin Blasl², Benjamin Mustin², Thilo Sandner²
¹Institute of Automation, Faculty of Electrical and Computer Engineering, TUD Dresden University of Technology, 01062 Dresden, Germany
²Fraunhofer Institute for Photonic Microsystems, Maria-Reiche-Str. 2, 01109 Dresden, Germany

Quasi-static 2D-MEMS vector scanners are micro-opto-electro-mechanical systems (MOEMS) made of monocrystalline silicon. The primary application for these controllable micromirrors is the high dynamic and precise deflection of laser beams, for example in light detection and ranging ... Mehr lesen

Computation Model of Electrostatic Spraying in Agriculture Industry

M. Al-Mamury[1], W. Balachandran [1], H. Al-Raweshidy [1], N. Manivannan[1]
[1]Brunel University, Uxbridge, UK

Introduction: Agricultural chemicals such as pesticides are used to protect plants against insects and diseases. In this project, electrostatic spray is investigated with intelligent sensors for efficient use of pesticides. As a part of this project, COMSOL Multiphysics® model was ... Mehr lesen

Multiphysics Simulation of Conjugated Heat Transfer and Electrostatic Field on Application of Electrostatic Chucks (ESCs) Using 3D-2D Model Coupling

K. Hsu[1], C. Li[1], J. Yang[1], J. Chen[1], J. Chang[1]
[1]Institute of Applied Mechanics, National Taiwan University, Taipei, Taiwan

There has been considerable interest in the electrostatic chucks (ESCs) in recent years. Wafer cooling by means of gas at the backside of wafers plays an important role in electrostatic chucks and it uses an electrostatic potential to secure the wafer. In this study, the correlation of ... Mehr lesen

Design and Analysis of an Electrostatic Precipitator for a Diesel Particulate Filter

S. Manoj[1], R. Giri[1], S. Selvakumar[1]
[1]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 ... Mehr lesen

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