A computational study for development stages of electrical pre-breakdown phenomenon of rod-plane air gap
Other Title(s)
دراسة حاسوبية لمراحل تطور ظاهرة (ما قبل الانهيار الكهربائي) للفجوة الهوائية لقضيب-مستوي
Dissertant
Thesis advisor
Khalaf, Thamir Hamid
Abbas, Qusayy Adnan
Comitee Members
Humud, Hammad R.
Hashim, Hasan N.
University
University of Baghdad
Faculty
College of Science
Department
Department of Physics
University Country
Iraq
Degree
Master
Degree Date
2014
English Abstract
The computational procedure was used in different studies to show an approximate view for the solution of many problems.
In this work, a computer simulation was done for the pre-breakdown phenomenon within the air gaps between electrical electrodes.
The main aim of this study is to determine the breakdown voltage values along air gaps without using costly devices.
This simulation was based on a stochastic model for the initiation and growth of the streamer discharge.
The model assumed a threshold value for the electric field at a point to initiate the streamer and the streamer grows in a random direction.
Therefore, Laplace’s equation was solved, numerically, using finite element method which is known to be an accurate numerical technique.
The minimum voltage value which enables the streamer to grow from the anode (the rod) within the air gap to reach the cathode (the plane) is the breakdown voltage for this gap.
The results show the development of the voltage variation and electric field distribution within a rod – plane configuration of electrical electrodes.
The breakdown voltage values were determined for different distances, (3-10cm), between the two electrodes within the configuration.
These values were compared with practical and computational results and appeared to be in good agreement.
Also, the streamer velocity was studied within the air gaps for different breakdown voltage values.
Main Subjects
No. of Pages
90
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Introduction and breakdown theory.
Chapter Two : The numerical solution and the simulation.
Chapter Three : The results.
Chapter Four : The comparisons, conclusions, and suggested future works.
References.
American Psychological Association (APA)
Ahmad, Rusul Hamid. (2014). A computational study for development stages of electrical pre-breakdown phenomenon of rod-plane air gap. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-607532
Modern Language Association (MLA)
Ahmad, Rusul Hamid. A computational study for development stages of electrical pre-breakdown phenomenon of rod-plane air gap. (Master's theses Theses and Dissertations Master). University of Baghdad. (2014).
https://search.emarefa.net/detail/BIM-607532
American Medical Association (AMA)
Ahmad, Rusul Hamid. (2014). A computational study for development stages of electrical pre-breakdown phenomenon of rod-plane air gap. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-607532
Language
English
Data Type
Arab Theses
Record ID
BIM-607532
