CFD calculation of a phase change material using STAR-CCM+ for a passive safety system of a sodium-cooled fast reactor

The aim of the present study is to quantify the impact that local scale physics of phase change has on the overall heat transfer of the quasi-cubic modular element of an innovative Decay Heat Removal System (DHRS). To evaluate the capabilities of using a solid/liquid phase change material (PCM) to d...

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Bibliographic Details
Author: Meston, Ria
Format: master thesis
Publication Date:2024
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/399507
Online Access:https://hdl.handle.net/2117/399507
Access Level:Open access
Keyword:Nuclear reactors -- Cooling -- Fluid dynamics -- Mathematical models
Reactors nuclear -- Refrigeració -- Dinàmica de fluids -- Models matemàtics
Àrees temàtiques de la UPC::Energies::Energia nuclear
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spelling CFD calculation of a phase change material using STAR-CCM+ for a passive safety system of a sodium-cooled fast reactorMeston, RiaNuclear reactors -- Cooling -- Fluid dynamics -- Mathematical modelsReactors nuclear -- Refrigeració -- Dinàmica de fluids -- Models matemàticsÀrees temàtiques de la UPC::Energies::Energia nuclearThe aim of the present study is to quantify the impact that local scale physics of phase change has on the overall heat transfer of the quasi-cubic modular element of an innovative Decay Heat Removal System (DHRS). To evaluate the capabilities of using a solid/liquid phase change material (PCM) to drive passive natural circulation to cool the core of a Sodium-cooled Fast Reactor (SFR), a CFD analysis was carried out using STAR-CCM+. The melting-solidification model that utilizes the Volume- Of-Fluid (VOF) enthalpy-porosity approach proved sufficient when liquid and solid phases are isotropic, homogeneous and remain in thermal equilibrium at the interface, however, demonstrated extreme sensitivity when considering variable density between the phases. A preliminary estimation for the placement of the thermocouples according to the calculations was made for a future experimental study of melting Zamak PCM to measure areas of highly convective motion, hot and cold spots, and the shape of the melting interfaceUniversitat Politècnica de CatalunyaBatet Miracle, LluísLi, SimonPantano, Alessandro20242024-01-1520242024-01-15master thesishttp://purl.org/coar/resource_type/c_bdccNAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2117/399507reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3995072026-05-27T15:37:01Z
dc.title.none.fl_str_mv CFD calculation of a phase change material using STAR-CCM+ for a passive safety system of a sodium-cooled fast reactor
title CFD calculation of a phase change material using STAR-CCM+ for a passive safety system of a sodium-cooled fast reactor
spellingShingle CFD calculation of a phase change material using STAR-CCM+ for a passive safety system of a sodium-cooled fast reactor
Meston, Ria
Nuclear reactors -- Cooling -- Fluid dynamics -- Mathematical models
Reactors nuclear -- Refrigeració -- Dinàmica de fluids -- Models matemàtics
Àrees temàtiques de la UPC::Energies::Energia nuclear
title_short CFD calculation of a phase change material using STAR-CCM+ for a passive safety system of a sodium-cooled fast reactor
title_full CFD calculation of a phase change material using STAR-CCM+ for a passive safety system of a sodium-cooled fast reactor
title_fullStr CFD calculation of a phase change material using STAR-CCM+ for a passive safety system of a sodium-cooled fast reactor
title_full_unstemmed CFD calculation of a phase change material using STAR-CCM+ for a passive safety system of a sodium-cooled fast reactor
title_sort CFD calculation of a phase change material using STAR-CCM+ for a passive safety system of a sodium-cooled fast reactor
dc.creator.none.fl_str_mv Meston, Ria
author Meston, Ria
author_facet Meston, Ria
author_role author
dc.contributor.none.fl_str_mv Batet Miracle, Lluís
Li, Simon
Pantano, Alessandro
dc.subject.none.fl_str_mv Nuclear reactors -- Cooling -- Fluid dynamics -- Mathematical models
Reactors nuclear -- Refrigeració -- Dinàmica de fluids -- Models matemàtics
Àrees temàtiques de la UPC::Energies::Energia nuclear
topic Nuclear reactors -- Cooling -- Fluid dynamics -- Mathematical models
Reactors nuclear -- Refrigeració -- Dinàmica de fluids -- Models matemàtics
Àrees temàtiques de la UPC::Energies::Energia nuclear
description The aim of the present study is to quantify the impact that local scale physics of phase change has on the overall heat transfer of the quasi-cubic modular element of an innovative Decay Heat Removal System (DHRS). To evaluate the capabilities of using a solid/liquid phase change material (PCM) to drive passive natural circulation to cool the core of a Sodium-cooled Fast Reactor (SFR), a CFD analysis was carried out using STAR-CCM+. The melting-solidification model that utilizes the Volume- Of-Fluid (VOF) enthalpy-porosity approach proved sufficient when liquid and solid phases are isotropic, homogeneous and remain in thermal equilibrium at the interface, however, demonstrated extreme sensitivity when considering variable density between the phases. A preliminary estimation for the placement of the thermocouples according to the calculations was made for a future experimental study of melting Zamak PCM to measure areas of highly convective motion, hot and cold spots, and the shape of the melting interface
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-01-15
2024
2024-01-15
dc.type.none.fl_str_mv master thesis
http://purl.org/coar/resource_type/c_bdcc
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/399507
url https://hdl.handle.net/2117/399507
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universitat Politècnica de Catalunya
publisher.none.fl_str_mv Universitat Politècnica de Catalunya
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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