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Title:Simulacija tokovnih in toplotnih razmer v modelu prekata za gorivni element v bazenu za izrabljeno jedrsko gorivo : diplomsko delo
Authors:ID Pešak, Tilen Timotej (Author)
ID Marn, Jure (Mentor) More about this mentor... New window
ID Kljenak, Ivo (Comentor)
Files:.pdf UN_Pesak_Tilen_Timotej_2025.pdf (2,86 MB)
MD5: 2E4F5B891B1475479BE3152142693373
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:V diplomski nalogi je bila izvedena numerična analiza tokovnih in temperaturnih razmer v gorivnem elementu, nameščenem v bazenu za izrabljeno jedrsko gorivo. Simulacije so bile izvedene v programu za računsko dinamiko tekočin ANSYS Fluent, kjer so bile gorivne palice modelirane kot porozni medij z vgrajenim virom toplote. Analiza je obsegala tri sklope: primerjavo različnih hladilnih pristopov (prisilna, naravna in kombinirana konvekcija), preučitev vpliva poroznosti ter preučitev vpliva postopnega zmanjšanja pretoka hladilna vode na temperaturne razmere v modelu. Rezultati prikazujejo spremembo hitrosti pretoka in temperature s spreminjanjem hladilnih pristopov, poroznosti ali masnega toka.
Keywords:simulacija tokovnih razmer, ANSYS Fluent, gorivni element, porozna snov, bazen za izrabljeno jedrsko gorivo
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[T. T. Pešak]
Year of publishing:2025
Number of pages:1 spletni vir (1 datoteka PDF (X, 53 f.))
PID:20.500.12556/DKUM-94666 New window
UDC:621.039.54(043.2)
COBISS.SI-ID:264628227 New window
Publication date in DKUM:09.01.2026
Views:163
Downloads:28
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:25.08.2025

Secondary language

Language:English
Title:Simulation of flow and thermal conditions in the model of a fuel element rack in a spent nuclear fuel pool
Abstract:In this thesis, a numerical analysis of flow and temperature conditions in a fuel assembly located in a spent nuclear fuel pool was carried out. The simulations were performed using the computational fluid dynamics software ANSYS Fluent, where the fuel rods were modeled as a pourous medium with an embedded heat source. The anlysis consisted of three parts: a comparison of different cooling approaches (forced, natural and combined convection), an investigation on the influence of porosity and an examination of the impact of a gradual reduction in coolant flow on the temparature conditions in the model. The results show changes in flow velocity and temperature with variations in cooling approaches, porosity or mass flow rate.
Keywords:flow simulation, ANSYS Fluent, fuel assembly, porous medium, spent nuclear fuel pool


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