{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/109415"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/109415","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Neutronics and thermal-hydraulics analysis of transatomic power molten salt reactor (TAP MSR) core under load following operations","abstract":"This work analyzed the neutronics and thermal-hydraulics behavior of the Transatomic Power Molten Salt Reactor (TAP MSR) core under load-following operations using a Monte Carlo code, Serpent 2, as well as a UIUC-developed MOOSE-based code, Moltres. A simulation method was developed to determine the operational bounds of the TAP MSR core and its transient behavior under rapid power ramps using both fresh fuel salt and fuel salt with equilibrium 135Xe. The thermal-hydraulics investigation studied the potential of exceeding material temperature constraints under simple advection flow versus a flow simulated with Incompressible Navier-Stokes physics. Finally, the effects of gas entrainment on the reactor core behavior were investigated. This study concludes that the TAP MSR core is able to perform rapid load following operations without exceeding its thermal safety constraints. The findings in this work were derived from research performed under the DOE ARPA-E MEITNER project, DE-AR0000983.","abstract_html":"This work analyzed the neutronics and thermal-hydraulics behavior of the Transatomic Power Molten Salt Reactor (TAP MSR) core under load-following operations using a Monte Carlo code, Serpent 2, as well as a UIUC-developed MOOSE-based code, Moltres. A simulation method was developed to determine the operational bounds of the TAP MSR core and its transient behavior under rapid power ramps using both fresh fuel salt and fuel salt with equilibrium 135Xe. The thermal-hydraulics investigation studied the potential of exceeding material temperature constraints under simple advection flow versus a flow simulated with Incompressible Navier-Stokes physics. Finally, the effects of gas entrainment on the reactor core behavior were investigated. This study concludes that the TAP MSR core is able to perform rapid load following operations without exceeding its thermal safety constraints. The findings in this work were derived from research performed under the DOE ARPA-E MEITNER project, DE-AR0000983.","abstract_has_math":false,"creators":["Lee, Alvin J.H."],"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":["Kozlowski, Tomasz","Huff, Kathryn D"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2021,"date_issued":"2021-03-05T21:38:16Z","date_published":"2021-03-05T21:38:16Z","updated_at":"2026-07-22T22:24:50Z","subjects":["Multiphysics","Thermal Hydraulics","Neutronics","Moltres","Transatomic Power","Molten Salt Reactor","Transient","Load Following","Salt Proc","MEITNER"],"languages":["en"],"rights":["Copyright 2020 by Alvin J.H. Lee. All rights reserved."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/109415","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Kozlowski, Tomasz","Huff, Kathryn D"]},{"key":"dc:creator","label":"Author","values":["Lee, Alvin J.H."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2021-03-05T21:38:16Z","2020-12-07","2020-12"]},{"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":["Multiphysics","Thermal Hydraulics","Neutronics","Moltres","Transatomic Power","Molten Salt Reactor","Transient","Load Following","Salt Proc","MEITNER"]}]},{"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 by Alvin J.H. Lee. All rights reserved."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/109415"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This work analyzed the neutronics and thermal-hydraulics behavior of the Transatomic Power Molten Salt Reactor (TAP MSR) core under load-following operations using a Monte Carlo code, Serpent 2, as well as a UIUC-developed MOOSE-based code, Moltres. A simulation method was developed to determine the operational bounds of the TAP MSR core and its transient behavior under rapid power ramps using both fresh fuel salt and fuel salt with equilibrium 135Xe. The thermal-hydraulics investigation studied the potential of exceeding material temperature constraints under simple advection flow versus a flow simulated with Incompressible Navier-Stokes physics. Finally, the effects of gas entrainment on the reactor core behavior were investigated. This study concludes that the TAP MSR core is able to perform rapid load following operations without exceeding its thermal safety constraints. The findings in this work were derived from research performed under the DOE ARPA-E MEITNER project, DE-AR0000983.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2021-03-04 without embargo terms","The student, Alvin Lee, accepted the attached license on 2020-12-01 at 16:30.","The student, Alvin Lee, submitted this Thesis for approval on 2020-12-01 at 16:52.","This Thesis was approved for publication on 2020-12-07 at 10:37.","DSpace SAF Submission Ingestion Package generated from Vireo submission #16018 on 2021-03-04 at 15:35:43","Made available in DSpace on 2021-03-05T21:38:16Z (GMT). No. of bitstreams: 2 LEE-THESIS-2020.pdf: 3536161 bytes, checksum: c5e479a55da241b8046a019a8e177a4c (MD5) LICENSE.txt: 4206 bytes, checksum: 658dee838fbfe44bd82b81900a490337 (MD5) Previous issue date: 2020-12-07"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Neutronics and thermal-hydraulics analysis of transatomic power molten salt reactor (TAP MSR) core under load following operations"]}]}],"canonical_facts":{"dc:contributor":["Kozlowski, Tomasz","Huff, Kathryn D"],"dc:creator":["Lee, Alvin J.H."],"dc:date":["2021-03-05T21:38:16Z","2020-12-07","2020-12"],"dc:description":["This work analyzed the neutronics and thermal-hydraulics behavior of the Transatomic Power Molten Salt Reactor (TAP MSR) core under load-following operations using a Monte Carlo code, Serpent 2, as well as a UIUC-developed MOOSE-based code, Moltres. A simulation method was developed to determine the operational bounds of the TAP MSR core and its transient behavior under rapid power ramps using both fresh fuel salt and fuel salt with equilibrium 135Xe. The thermal-hydraulics investigation studied the potential of exceeding material temperature constraints under simple advection flow versus a flow simulated with Incompressible Navier-Stokes physics. Finally, the effects of gas entrainment on the reactor core behavior were investigated. This study concludes that the TAP MSR core is able to perform rapid load following operations without exceeding its thermal safety constraints. The findings in this work were derived from research performed under the DOE ARPA-E MEITNER project, DE-AR0000983.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2021-03-04 without embargo terms","The student, Alvin Lee, accepted the attached license on 2020-12-01 at 16:30.","The student, Alvin Lee, submitted this Thesis for approval on 2020-12-01 at 16:52.","This Thesis was approved for publication on 2020-12-07 at 10:37.","DSpace SAF Submission Ingestion Package generated from Vireo submission #16018 on 2021-03-04 at 15:35:43","Made available in DSpace on 2021-03-05T21:38:16Z (GMT). No. of bitstreams: 2 LEE-THESIS-2020.pdf: 3536161 bytes, checksum: c5e479a55da241b8046a019a8e177a4c (MD5) LICENSE.txt: 4206 bytes, checksum: 658dee838fbfe44bd82b81900a490337 (MD5) Previous issue date: 2020-12-07"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/109415"],"dc:language":["en"],"dc:rights":["Copyright 2020 by Alvin J.H. Lee. All rights reserved."],"dc:subject":["Multiphysics","Thermal Hydraulics","Neutronics","Moltres","Transatomic Power","Molten Salt Reactor","Transient","Load Following","Salt Proc","MEITNER"],"dc:title":["Neutronics and thermal-hydraulics analysis of transatomic power molten salt reactor (TAP MSR) core under load following operations"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Nuclear, Plasma, Radiolgc Engr"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:50Z"}