{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/107936"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/107936","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Validation of a multiphase CFD model with mass transfer for xenon removal in molten salt reactor","abstract":"Among the distinguishing features of molten salt reactors, the possibility of online fuel processing is especially promising. With removal of unfavorable fission products, the molten salt reactor could act as an effective converter reactor and could possibly operate in a load-following manner. The fuel life is also extended. This document is dedicated to developing a computational fluid dynamics (CFD) model as a design tool for the xenon removal system in fueled salt reactors. Beginning with the review of gaseous fission product removal, the possibility and limitation of CFD with multiphase species transfer modeling are discussed. The necessity of experimental validation and sensitivity studies is explained. Following this discussion, the details about the Eulerian-Eulerian two-fluid model and constitutive relations are presented. The detailed procedures and results of the three validation experiments are reported. Different phase interaction mechanisms, material properties, and constitutive relations are compared with each other and with the results from the experiments. These comparisons lead to a CFD model, which is further validated against different flow conditions. The CFD model can accurately predict the void fraction and velocity field in our experiment. The mass transfer model will be further developed and validated with the completion of the sparging experiments.","abstract_html":"Among the distinguishing features of molten salt reactors, the possibility of online fuel processing is especially promising. With removal of unfavorable fission products, the molten salt reactor could act as an effective converter reactor and could possibly operate in a load-following manner. The fuel life is also extended. This document is dedicated to developing a computational fluid dynamics (CFD) model as a design tool for the xenon removal system in fueled salt reactors. Beginning with the review of gaseous fission product removal, the possibility and limitation of CFD with multiphase species transfer modeling are discussed. The necessity of experimental validation and sensitivity studies is explained. Following this discussion, the details about the Eulerian-Eulerian two-fluid model and constitutive relations are presented. The detailed procedures and results of the three validation experiments are reported. Different phase interaction mechanisms, material properties, and constitutive relations are compared with each other and with the results from the experiments. These comparisons lead to a CFD model, which is further validated against different flow conditions. The CFD model can accurately predict the void fraction and velocity field in our experiment. The mass transfer model will be further developed and validated with the completion of the sparging experiments.","abstract_has_math":false,"creators":["Chen, Jiaqi"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Nuclear, Plasma, Radiolgc Engr","degree_department":null,"school":null,"contributors":["Brooks, Caleb S.","Uddin, Rizwan"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2020,"date_issued":"2020-08-26T21:54:34Z","date_published":"2020-08-26T21:54:34Z","updated_at":"2026-07-22T22:24:47Z","subjects":["Mass Transfer, Xenon Removal, CFD, Molten Salt Reactor"],"languages":["en"],"rights":["Copyright 2020 Jiaqi Chen"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/107936","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Brooks, Caleb S.","Uddin, Rizwan"]},{"key":"dc:creator","label":"Author","values":["Chen, Jiaqi"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2020-08-26T21:54:34Z","2020-05-11","2020-05"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Nuclear, Plasma, Radiolgc Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Mass Transfer, Xenon Removal, CFD, Molten Salt Reactor"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2020 Jiaqi Chen"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/107936"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Among the distinguishing features of molten salt reactors, the possibility of online fuel processing is especially promising. With removal of unfavorable fission products, the molten salt reactor could act as an effective converter reactor and could possibly operate in a load-following manner. The fuel life is also extended. This document is dedicated to developing a computational fluid dynamics (CFD) model as a design tool for the xenon removal system in fueled salt reactors. Beginning with the review of gaseous fission product removal, the possibility and limitation of CFD with multiphase species transfer modeling are discussed. The necessity of experimental validation and sensitivity studies is explained. Following this discussion, the details about the Eulerian-Eulerian two-fluid model and constitutive relations are presented. The detailed procedures and results of the three validation experiments are reported. Different phase interaction mechanisms, material properties, and constitutive relations are compared with each other and with the results from the experiments. These comparisons lead to a CFD model, which is further validated against different flow conditions. The CFD model can accurately predict the void fraction and velocity field in our experiment. The mass transfer model will be further developed and validated with the completion of the sparging experiments.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2020-08-25 without embargo terms","The student, Jiaqi Chen, accepted the attached license on 2020-04-28 at 12:11.","The student, Jiaqi Chen, submitted this Thesis for approval on 2020-04-28 at 12:20.","This Thesis was approved for publication on 2020-05-11 at 07:11.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15102 on 2020-08-25 at 17:09:15","Made available in DSpace on 2020-08-26T21:54:34Z (GMT). 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This document is dedicated to developing a computational fluid dynamics (CFD) model as a design tool for the xenon removal system in fueled salt reactors. Beginning with the review of gaseous fission product removal, the possibility and limitation of CFD with multiphase species transfer modeling are discussed. The necessity of experimental validation and sensitivity studies is explained. Following this discussion, the details about the Eulerian-Eulerian two-fluid model and constitutive relations are presented. The detailed procedures and results of the three validation experiments are reported. Different phase interaction mechanisms, material properties, and constitutive relations are compared with each other and with the results from the experiments. These comparisons lead to a CFD model, which is further validated against different flow conditions. The CFD model can accurately predict the void fraction and velocity field in our experiment. The mass transfer model will be further developed and validated with the completion of the sparging experiments.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2020-08-25 without embargo terms","The student, Jiaqi Chen, accepted the attached license on 2020-04-28 at 12:11.","The student, Jiaqi Chen, submitted this Thesis for approval on 2020-04-28 at 12:20.","This Thesis was approved for publication on 2020-05-11 at 07:11.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15102 on 2020-08-25 at 17:09:15","Made available in DSpace on 2020-08-26T21:54:34Z (GMT). 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