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Comparing flow regime transition of magnetized fluidized bed with Geldart-B particles between magnetization- FIRST and -LAST operation modes
Zhu, Quanhong1,2,3; Li, Hongzhong2; Zhu, Qingshan2,4; Huang, Qingshan1,2,3
2019-03-15
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume360Pages:686-700
AbstractDifferent flow regimes existed for the magnetized fluidized bed with purely Geldart-B magnetizable particles (pure MFB) or their admixture with Geldart-B nonmagnetizable particles (admixture MFB). Several unresolved issues about the flow regime transition were addressed first for both the pure and admixture MFBs. Then the flow regime transition was thoroughly compared for the first time between the magnetization-FIRST and -LAST operation modes. The magnetic stabilization flow regime was observed to no longer exist under the magnetization-LAST operation mode. The comparison further indicated that the operating range covered in the literature and this work could be roughly divided into four zones. Particularly in operating zone II, the MFB state was found to depend not only on the magnetic field intensity and superficial gas velocity but also on the operation mode. Such a dependence feature in essence referred to the dependence of the MFB state on the path taken to achieve it. The reason why the bed state was path-dependent in operating zone II lay in that the MFB therein could have two different equilibrium states and different paths led to the two states, respectively. Of the two equilibrium states, the magnetic stabilization was demonstrated to be a metastable equilibrium state. Such unique characteristics of the magnetic stabilization state explained why it could not be obtained under the magnetization-LAST operation mode. Furthermore, the reason why the MFB could have an additional metastable equilibrium state aside from the stable equilibrium state in operating zone II lay in the difficulty in forming a new phase under the magnetization-FIRST operation mode.
KeywordMagnetized fluidized bed Flow regime transition Comparison Operation mode Magnetic stabilization Metastable equilibrium
DOI10.1016/j.cej.2018.12.053
Language英语
WOS KeywordFIELD-ASSISTED FLUIDIZATION ; MAGNETICALLY STABILIZED BEDS ; HEAT-TRANSFER CHARACTERISTICS ; UNIFIED APPROACH ; MAGNETOFLUIDIZED BEDS ; HYDRODYNAMIC CHARACTERISTICS ; PART 2 ; ADMIXTURE ; BEHAVIOR ; SEPARATION
Funding ProjectNational Natural Science Foundation of China[21808232] ; National Natural Science Foundation of China[21878318] ; National Natural Science Foundation of China[91434114] ; Instrument Developing Project of the CAS[YZ201641] ; "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the CAS[XDA21060400] ; CAS Key Technology Talent Program ; Supercomputing Center of USTC (University of Science and Technology of China)
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China ; Instrument Developing Project of the CAS ; "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the CAS ; CAS Key Technology Talent Program ; Supercomputing Center of USTC (University of Science and Technology of China)
WOS IDWOS:000460964000070
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28285
Collection中国科学院过程工程研究所
Corresponding AuthorLi, Hongzhong; Zhu, Qingshan
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian 116000, Liaoning, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Quanhong,Li, Hongzhong,Zhu, Qingshan,et al. Comparing flow regime transition of magnetized fluidized bed with Geldart-B particles between magnetization- FIRST and -LAST operation modes[J]. CHEMICAL ENGINEERING JOURNAL,2019,360:686-700.
APA Zhu, Quanhong,Li, Hongzhong,Zhu, Qingshan,&Huang, Qingshan.(2019).Comparing flow regime transition of magnetized fluidized bed with Geldart-B particles between magnetization- FIRST and -LAST operation modes.CHEMICAL ENGINEERING JOURNAL,360,686-700.
MLA Zhu, Quanhong,et al."Comparing flow regime transition of magnetized fluidized bed with Geldart-B particles between magnetization- FIRST and -LAST operation modes".CHEMICAL ENGINEERING JOURNAL 360(2019):686-700.
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