Hydraulic Characteristics, Residence Time Distribution, and Flow Field of Electrochemical Descaling Reactor Using CFD

This paper uses computational fluid dynamics (CFD) to simulate flow field distribution inside an electrochemical descaling reactor in three dimensions. First, the reactor flow field was obtained by steady-state simulation, and the grid independence was verified. Then, the steady state of the flow fi...

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Autores principales:	Bolin Hu, Xiaoqiang Zhang, Zhaofeng Wang, Zixian Wang, Yuanfan Ji
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	CFD residence time distribution reactor hydraulic characteristics flow field analysis electrochemical descaling Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/173a65a1e8504eaa8a8c6a675938eb0c
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spelling	oai:doaj.org-article:173a65a1e8504eaa8a8c6a675938eb0c2021-11-25T18:50:11ZHydraulic Characteristics, Residence Time Distribution, and Flow Field of Electrochemical Descaling Reactor Using CFD10.3390/pr91118962227-9717https://doaj.org/article/173a65a1e8504eaa8a8c6a675938eb0c2021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1896https://doaj.org/toc/2227-9717This paper uses computational fluid dynamics (CFD) to simulate flow field distribution inside an electrochemical descaling reactor in three dimensions. First, the reactor flow field was obtained by steady-state simulation, and the grid independence was verified. Then, the steady state of the flow field was judged to ensure the accuracy of the simulation results. Transient simulations were performed on the basis of steady-state simulations, and residence time distribution (RTD) curves were obtained by a pulse-tracing method. The effects of plate height and plate spacing on reactor hydraulic characteristics (flow state and backmixing) were investigated using RTD curves, and the results showed that increasing the plate height and decreasing the plate spacing could make the flow more similar to the plug flow and reduce the degree of backmixing in the reactor. The flow field details provided by CFD were used to analyze the reactor flow field and were further verified to obtain the distribution patterns of dead and short circuit zones. Meanwhile, information regarding pressure drops was extracted for different working conditions (490, 560, and 630 mm for pole plate height and 172.6, 129.45, and 103.56 mm for pole plate spacing), and the results showed that increasing the pole plate height and decreasing the pole plate spacing led to an increased drop in pressure. In this case, a larger pressure drop means higher energy consumption. However, increasing the pole plate height had a smaller effect on energy consumption than decreasing the pole plate spacing.Bolin HuXiaoqiang ZhangZhaofeng WangZixian WangYuanfan JiMDPI AGarticleCFDresidence time distributionreactorhydraulic characteristicsflow field analysiselectrochemical descalingChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1896, p 1896 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	CFD residence time distribution reactor hydraulic characteristics flow field analysis electrochemical descaling Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	CFD residence time distribution reactor hydraulic characteristics flow field analysis electrochemical descaling Chemical technology TP1-1185 Chemistry QD1-999 Bolin Hu Xiaoqiang Zhang Zhaofeng Wang Zixian Wang Yuanfan Ji Hydraulic Characteristics, Residence Time Distribution, and Flow Field of Electrochemical Descaling Reactor Using CFD
description	This paper uses computational fluid dynamics (CFD) to simulate flow field distribution inside an electrochemical descaling reactor in three dimensions. First, the reactor flow field was obtained by steady-state simulation, and the grid independence was verified. Then, the steady state of the flow field was judged to ensure the accuracy of the simulation results. Transient simulations were performed on the basis of steady-state simulations, and residence time distribution (RTD) curves were obtained by a pulse-tracing method. The effects of plate height and plate spacing on reactor hydraulic characteristics (flow state and backmixing) were investigated using RTD curves, and the results showed that increasing the plate height and decreasing the plate spacing could make the flow more similar to the plug flow and reduce the degree of backmixing in the reactor. The flow field details provided by CFD were used to analyze the reactor flow field and were further verified to obtain the distribution patterns of dead and short circuit zones. Meanwhile, information regarding pressure drops was extracted for different working conditions (490, 560, and 630 mm for pole plate height and 172.6, 129.45, and 103.56 mm for pole plate spacing), and the results showed that increasing the pole plate height and decreasing the pole plate spacing led to an increased drop in pressure. In this case, a larger pressure drop means higher energy consumption. However, increasing the pole plate height had a smaller effect on energy consumption than decreasing the pole plate spacing.
format	article
author	Bolin Hu Xiaoqiang Zhang Zhaofeng Wang Zixian Wang Yuanfan Ji
author_facet	Bolin Hu Xiaoqiang Zhang Zhaofeng Wang Zixian Wang Yuanfan Ji
author_sort	Bolin Hu
title	Hydraulic Characteristics, Residence Time Distribution, and Flow Field of Electrochemical Descaling Reactor Using CFD
title_short	Hydraulic Characteristics, Residence Time Distribution, and Flow Field of Electrochemical Descaling Reactor Using CFD
title_full	Hydraulic Characteristics, Residence Time Distribution, and Flow Field of Electrochemical Descaling Reactor Using CFD
title_fullStr	Hydraulic Characteristics, Residence Time Distribution, and Flow Field of Electrochemical Descaling Reactor Using CFD
title_full_unstemmed	Hydraulic Characteristics, Residence Time Distribution, and Flow Field of Electrochemical Descaling Reactor Using CFD
title_sort	hydraulic characteristics, residence time distribution, and flow field of electrochemical descaling reactor using cfd
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/173a65a1e8504eaa8a8c6a675938eb0c
work_keys_str_mv	AT bolinhu hydrauliccharacteristicsresidencetimedistributionandflowfieldofelectrochemicaldescalingreactorusingcfd AT xiaoqiangzhang hydrauliccharacteristicsresidencetimedistributionandflowfieldofelectrochemicaldescalingreactorusingcfd AT zhaofengwang hydrauliccharacteristicsresidencetimedistributionandflowfieldofelectrochemicaldescalingreactorusingcfd AT zixianwang hydrauliccharacteristicsresidencetimedistributionandflowfieldofelectrochemicaldescalingreactorusingcfd AT yuanfanji hydrauliccharacteristicsresidencetimedistributionandflowfieldofelectrochemicaldescalingreactorusingcfd
_version_	1718410633721937920

Hydraulic Characteristics, Residence Time Distribution, and Flow Field of Electrochemical Descaling Reactor Using CFD

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