CFD Modeling of a Lab-Scale Microwave Plasma Reactor for Waste-to-Energy Applications: A Review

Rapidly increasing solid waste generation and energy demand are two critical issues of the current century. Plasma gasification, a type of waste-to-energy (WtE) technology, has the potential to produce clean energy from waste and safely destroy hazardous waste. Among plasma gasification technologies...

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Main Authors: Owen Sedej, Eric Mbonimpa
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Gases
Subjects:
Online Access:https://www.mdpi.com/2673-5628/1/3/11
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author Owen Sedej
Eric Mbonimpa
author_facet Owen Sedej
Eric Mbonimpa
author_sort Owen Sedej
collection DOAJ
description Rapidly increasing solid waste generation and energy demand are two critical issues of the current century. Plasma gasification, a type of waste-to-energy (WtE) technology, has the potential to produce clean energy from waste and safely destroy hazardous waste. Among plasma gasification technologies, microwave (MW)-driven plasma offers numerous potential advantages to be scaled as a leading WtE technology if its processes are well understood and optimized. This paper reviews studies on modeling experimental microwave-induced plasma gasification systems. The system characterization requires developing mathematical models to describe the multiphysics phenomena within the reactor. The injection of plasma-forming gases and carrier gases, the rate of the waste stream, and the operational power heavily influence the initiation of various chemical reactions that produce syngas. The type and kinetics of the chemical reactions taking place are primarily influenced by either the turbulence or temperature. Navier–Stokes equations are used to describe the mass, momentum, and energy transfer, and the k-epsilon model is often used to describe the turbulence within the reactor. Computational fluid dynamics software offers the ability to solve these multiphysics mathematical models efficiently and accurately.
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spelling doaj.art-88e9ce0a1c894f52847a4d4d30721cc22023-11-22T18:20:13ZengMDPI AGGases2673-56282021-07-011313314710.3390/gases1030011CFD Modeling of a Lab-Scale Microwave Plasma Reactor for Waste-to-Energy Applications: A ReviewOwen Sedej0Eric Mbonimpa1Department of Systems Engineering and Management, Air Force Institute of Technology, 2950 Hobson Way, Wrigth Patterson Air Force Base (WPAFB), Fairborn, OH 45433, USADepartment of Systems Engineering and Management, Air Force Institute of Technology, 2950 Hobson Way, Wrigth Patterson Air Force Base (WPAFB), Fairborn, OH 45433, USARapidly increasing solid waste generation and energy demand are two critical issues of the current century. Plasma gasification, a type of waste-to-energy (WtE) technology, has the potential to produce clean energy from waste and safely destroy hazardous waste. Among plasma gasification technologies, microwave (MW)-driven plasma offers numerous potential advantages to be scaled as a leading WtE technology if its processes are well understood and optimized. This paper reviews studies on modeling experimental microwave-induced plasma gasification systems. The system characterization requires developing mathematical models to describe the multiphysics phenomena within the reactor. The injection of plasma-forming gases and carrier gases, the rate of the waste stream, and the operational power heavily influence the initiation of various chemical reactions that produce syngas. The type and kinetics of the chemical reactions taking place are primarily influenced by either the turbulence or temperature. Navier–Stokes equations are used to describe the mass, momentum, and energy transfer, and the k-epsilon model is often used to describe the turbulence within the reactor. Computational fluid dynamics software offers the ability to solve these multiphysics mathematical models efficiently and accurately.https://www.mdpi.com/2673-5628/1/3/11microwave plasma gasificationwaste-to-energypyrolysiscomputational fluid dynamicsnumerical modelingcombustion
spellingShingle Owen Sedej
Eric Mbonimpa
CFD Modeling of a Lab-Scale Microwave Plasma Reactor for Waste-to-Energy Applications: A Review
Gases
microwave plasma gasification
waste-to-energy
pyrolysis
computational fluid dynamics
numerical modeling
combustion
title CFD Modeling of a Lab-Scale Microwave Plasma Reactor for Waste-to-Energy Applications: A Review
title_full CFD Modeling of a Lab-Scale Microwave Plasma Reactor for Waste-to-Energy Applications: A Review
title_fullStr CFD Modeling of a Lab-Scale Microwave Plasma Reactor for Waste-to-Energy Applications: A Review
title_full_unstemmed CFD Modeling of a Lab-Scale Microwave Plasma Reactor for Waste-to-Energy Applications: A Review
title_short CFD Modeling of a Lab-Scale Microwave Plasma Reactor for Waste-to-Energy Applications: A Review
title_sort cfd modeling of a lab scale microwave plasma reactor for waste to energy applications a review
topic microwave plasma gasification
waste-to-energy
pyrolysis
computational fluid dynamics
numerical modeling
combustion
url https://www.mdpi.com/2673-5628/1/3/11
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