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Numerical Modeling of the Novel Cross-Flow Electrostatic Precipitator

Eboreime, Ohioma
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1575646113189561

Abstract Details

2019, Doctor of Philosophy (PhD), Ohio University, Mechanical and Systems Engineering (Engineering and Technology).
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.
Muhammad Ali, PhD (Advisor)
Khairul Alam, PhD (Committee Member)
Alireza Sarvestani, PhD (Committee Member)
Sergio Ulloa, PhD (Committee Member)
Vic Matta, PhD (Committee Member)
127 p.
Mechanical Engineering
Electrostatic precipitator; corona; numerical simulation; particle charging; Crossflow ESP

Recommended Citations

Citations

  • Eboreime, O. (2019). Numerical Modeling of the Novel Cross-Flow Electrostatic Precipitator [Doctoral dissertation, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1575646113189561

    APA Style (7th edition)

  • Eboreime, Ohioma. Numerical Modeling of the Novel Cross-Flow Electrostatic Precipitator. 2019. Ohio University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1575646113189561.

    MLA Style (8th edition)

  • Eboreime, Ohioma. "Numerical Modeling of the Novel Cross-Flow Electrostatic Precipitator." Doctoral dissertation, Ohio University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1575646113189561

    Chicago Manual of Style (17th edition)

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© 2019, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.