Modeling the Variation of Electric Field Pattern on Porcelain Insulators by the Deposition of Dust Particles Using Finite Element Method

2020 ◽  
Vol 12 (6) ◽  
pp. 840-843
Author(s):  
Asaad Shemshadi ◽  
Pourya Khorampour
Keyword(s):  
Finite Element Method ◽  
Adverse Effect ◽  
Finite Element ◽  
Electric Field ◽  
Field Intensity ◽  
Electric Field Intensity ◽  
Field Pattern ◽  
Dust Layer ◽  
Porcelain Insulators ◽  
Element Method

The purpose of this paper is to investigate the changes in the electric field intensity due to the presence of dust on the 63 kV porcelain insulators using finite element method (FEM). The investigating Insulators were drawn in three different models (without dust layer as a basic structure, with uniform dust layer and heterogeneous dust layer) using AutoCAD software and in continue are analyzed with utilization of COMSOL software. Finally the derived values are analyzed and discussed in details. It is shown that the dust layer has an adverse effect on the electric field pattern, and the higher the concentration and volume of dust placed on the surface of insulators, results to an adverse effect on the electric field intensity around the porcelain insulator.

scholarly journals Effect of Material Thickness on Attenuation (dB) of PTFE Using Finite Element Method at X-Band Frequency

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Abubakar Yakubu ◽  
Zulkifly Abbas ◽  
Mansor Hashim
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Electric Field ◽  
Rectangular Waveguide ◽  
Electric Field Intensity ◽  
Reflection Coefficients ◽  
Band Frequency ◽  
Ptfe Sample ◽  
X Band ◽  
Element Method

PTFE samples were prepared with different thicknesses. Their electric field intensity and distribution of the PTFE samples placed inside a rectangular waveguide were simulated using finite element method. The calculation of transmission/reflection coefficients for all samples thickness was achieved via FEM. Amongst other observable features, result from calculation using FEM showed that the attenuation for the 15 mm PTFE sample is −3.32 dB; the 30 mm thick PTFE sample has an attenuation of 0.64 dB, while the 50 mm thick PTFE sample has an attenuation of 1.97 dB. It then suffices to say that, as the thickness of the PTFE sample increases, the attenuation of the samples at the corresponding thicknesses increases.

Simulation about Multi-Needle Electrospinning Based on Finite Element Method

2011 ◽  
Vol 332-334 ◽  
pp. 2157-2160 ◽  
Author(s):  
Ling Ling Guo ◽  
Yan Bo Liu ◽  
Yu Zheng
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Electric Field ◽  
Field Intensity ◽  
Electric Field Intensity ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Needle Diameter ◽  
Design And Manufacture

In the current study, the finite element analysis was used to simulate the change in electric field intensity due to the change of needle diameter and length, receiving distance，voltage and the spacing between needles located in a row. The resulting conclusion could be used to guide the design and manufacture of electrospinning machines at industrial scale.

Research on Electric Field Simulation of Ring Capacitance Sensor Based on Finite Element Method

2021 ◽  
Vol 105 ◽  
pp. 221-227
Author(s):  
Hui Ling Wang ◽  
Chun Li Cai
Keyword(s):  
Dielectric Constant ◽  
Finite Element ◽  
Electric Field ◽  
Field Intensity ◽  
Electric Field Intensity ◽  
Element Model ◽  
Field Analysis ◽  
Optimal Structure ◽  
Capacitance Sensor ◽  
Finite Element Software

The working principle of ring capacitance sensor is introduced, that is capacitance fringe effect. Finite element model is established through the Hybrid-Trefftz algorithm. Electric field analysis and simulation calculation of different sensor model are done with the finite element software ANSYS, and the optimal structure combination is obtained. And followed the example of optimal structure, the relation of dielectric constant and electric field intensity were given. The result of simulation shows the most direct and the most important two parameters that affect the sensor performance in the design of the ring capacitance sensor are the two electrodes spacing and the length. The dielectric constant of measured medium is smaller, the intensity of electric field intensity is greater. The simulation for subsequent product design has a good theoretical guidance.

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