{"id":{"repo_id":"uwo","oai_identifier":"oai:uwo.scholaris.ca:20.500.14721/32336"},"canonical_url":"https://search.dev.ndltd.org/etd/uwo/oai:uwo.scholaris.ca:20.500.14721/32336","repository":{"repo_id":"uwo","name":"Western University","base_url":"https://uwo.scholaris.ca/server/oai/request"},"display":{"title":"Identification and Distribution Analysis of the Mid-phase in a Low-velocity Gas-solid Fluidized Bed","abstract":"The intermediate phase in low-velocity gas-solid fluidized beds generally presents excellent gas-solid contact in the systems. However, no comprehensive understanding of this vital phase is available in the literature. Therefore, this study proposed a statistical method to identify this intermediate phase, named ‘mid-phase’ in this thesis, to interpret the system performance based on the analysis of solids holdup in a low-velocity gas-solid fluidized bed. The distributions of the mid-phase are investigated along both radial and axial directions in consideration of different flow regimes. The result shows that the turbulent regime contains a higher amount of mid-phase and the spatial mid-phase distributions within this regime present to be more heterogeneous. According to the analysis of the spatial distributions, the mid-phase tends to concentrate at the medium bed heights adjacent to the wall. These results are of great significance to precisely guide the related process intensification operations.","abstract_html":"The intermediate phase in low-velocity gas-solid fluidized beds generally presents excellent gas-solid contact in the systems. However, no comprehensive understanding of this vital phase is available in the literature. Therefore, this study proposed a statistical method to identify this intermediate phase, named ‘mid-phase’ in this thesis, to interpret the system performance based on the analysis of solids holdup in a low-velocity gas-solid fluidized bed. The distributions of the mid-phase are investigated along both radial and axial directions in consideration of different flow regimes. The result shows that the turbulent regime contains a higher amount of mid-phase and the spatial mid-phase distributions within this regime present to be more heterogeneous. According to the analysis of the spatial distributions, the mid-phase tends to concentrate at the medium bed heights adjacent to the wall. These results are of great significance to precisely guide the related process intensification operations.","abstract_has_math":false,"creators":["Zhang, Zhenan"],"institution":"The University of Western Ontario","degree_name":"M Eng Sci","degree_level":null,"degree_discipline":"Chemical and Biochemical Engineering","degree_department":null,"school":null,"contributors":[],"advisors":["Zhu, Jesse"],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-08-16","date_published":"2022-08-16","updated_at":"2026-07-27T21:56:11Z","subjects":["Bubbling Fluidized Bed","Turbulent Fluidized Bed","Solids Holdup","Superficial Gas Velocity"],"languages":["en_ca"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/20.500.14721/32336","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Zhu, Jesse"]},{"key":"dc:creator","label":"Author","values":["Zhang, Zhenan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-07-10T19:29:13Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-07-10T19:29:13Z"]},{"key":"dc:date.issued","label":"Date","values":["2022-08-16"]},{"key":"dc:publisher","label":"Institution","values":["The University of Western Ontario"]},{"key":"dc:type","label":"Dc Type","values":["thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemical and Biochemical Engineering"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M Eng Sci"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Bubbling Fluidized Bed","Turbulent Fluidized Bed","Solids Holdup","Superficial Gas Velocity"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_ca"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/20.500.14721/32336"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."]},{"key":"dc:description.abstract","label":"Abstract","values":["The intermediate phase in low-velocity gas-solid fluidized beds generally presents excellent gas-solid contact in the systems. However, no comprehensive understanding of this vital phase is available in the literature. Therefore, this study proposed a statistical method to identify this intermediate phase, named ‘mid-phase’ in this thesis, to interpret the system performance based on the analysis of solids holdup in a low-velocity gas-solid fluidized bed. The distributions of the mid-phase are investigated along both radial and axial directions in consideration of different flow regimes. The result shows that the turbulent regime contains a higher amount of mid-phase and the spatial mid-phase distributions within this regime present to be more heterogeneous. According to the analysis of the spatial distributions, the mid-phase tends to concentrate at the medium bed heights adjacent to the wall. These results are of great significance to precisely guide the related process intensification operations."]},{"key":"dc:title","label":"Title","values":["Identification and Distribution Analysis of the Mid-phase in a Low-velocity Gas-solid Fluidized Bed"]}]}],"canonical_facts":{"dc:contributor.advisor":["Zhu, Jesse"],"dc:creator":["Zhang, Zhenan"],"dc:date.accessioned":["2025-07-10T19:29:13Z"],"dc:date.available":["2025-07-10T19:29:13Z"],"dc:date.issued":["2022-08-16"],"dc:description":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."],"dc:description.abstract":["The intermediate phase in low-velocity gas-solid fluidized beds generally presents excellent gas-solid contact in the systems. However, no comprehensive understanding of this vital phase is available in the literature. Therefore, this study proposed a statistical method to identify this intermediate phase, named ‘mid-phase’ in this thesis, to interpret the system performance based on the analysis of solids holdup in a low-velocity gas-solid fluidized bed. The distributions of the mid-phase are investigated along both radial and axial directions in consideration of different flow regimes. The result shows that the turbulent regime contains a higher amount of mid-phase and the spatial mid-phase distributions within this regime present to be more heterogeneous. According to the analysis of the spatial distributions, the mid-phase tends to concentrate at the medium bed heights adjacent to the wall. These results are of great significance to precisely guide the related process intensification operations."],"dc:identifier.uri":["https://hdl.handle.net/20.500.14721/32336"],"dc:language.iso":["en_ca"],"dc:publisher":["The University of Western Ontario"],"dc:subject":["Bubbling Fluidized Bed","Turbulent Fluidized Bed","Solids Holdup","Superficial Gas Velocity"],"dc:title":["Identification and Distribution Analysis of the Mid-phase in a Low-velocity Gas-solid Fluidized Bed"],"dc:type":["thesis"],"thesis:degree_discipline":["Chemical and Biochemical Engineering"],"thesis:degree_name":["M Eng Sci"]},"updated_at":"2026-07-27T21:56:11Z"}