Numerical Modeling of the Novel Cross-Flow Electrostatic Precipitator

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" Numerical Modeling of the Novel Cross-Flow Electrostatic Precipitator "
Eboreime, Ohioma Ali, Muhammad

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	1057538
Doc. No	:	TL56655
Main Entry	:	Eboreime, Ohioma
Title & Author	:	Numerical Modeling of the Novel Cross-Flow Electrostatic Precipitator\ Eboreime, OhiomaAli, Muhammad
College	:	Ohio University
Date	:	2019
Degree	:	Ph.D.
student score	:	2019
Note	:	128 p.
Abstract	:	Electrostatic precipitators (ESP) are used extensively for removing particulates from a gas flow by charging the particles and then removing them in the presence of an electric field. Traditional ESP designs use the walls of the flow channel as the grounded collection surface. The objective of this present study is to evaluate an ESP configuration in which an array of cylinders in a crossflow configuration is used as grounded collection surfaces. A numerical approach using ANSYS Fluent computational fluid dynamics (CFD) software was used to build a two-dimensional model for the gas flow and particulate capture. The model uses governing equations of fluid mechanics and electric fields to determine the fluid flow profiles, the charging of the particles, and the transport of the charged particles to the surfaces of grounded collection cylinders. The results of this study show that the particle collection is strongly influenced by two opposing phenomena, both of which are determined by the geometrical arrangement of the array of cylinders. The first phenomenon is the generation of turbulence regions behind the collector rows due to the cylinders obstructing the flow, which can enhance particulate capture downstream. The second is the shielding of the electric field by the cylinders which reduces the particulate transport to the grounded cylinder surfaces in the region separating the collector rows.
Descriptor	:	Information technology
	:	Mechanical engineering
Added Entry	:	Ali, Muhammad
Added Entry	:	Ohio University