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Title:Pressurized Water Nuclear Reactor Downcomer Flow Simulation : diplomsko delo
Authors:ID Kekec, Aljaž (Author)
ID Marn, Jure (Mentor) More about this mentor... New window
ID Kljenak, Ivo (Comentor)
Files:.pdf UN_Kekec_Aljaz_2021.pdf (2,49 MB)
MD5: A62FE53F05E031605AA9D3415CBF8E4E
PID: 20.500.12556/dkum/b1f78f2d-4440-488b-9aa8-dd027d193c2a
 
Language:English
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:In the diploma thesis the flow pattern and conditions in the downcomer of a pressurized water nuclear reactor were simulated, to study coolant mixing inside the primary circuit. This was done using computational dynamics software Ansys CFX. The nuclear reactor in Krško (Slovenia) was used as a basis for the model. The downcomer geometry was simplied for a more feasible study. Three separate simulations were done: one with normal conditions, one with loss of coolant accident conditions and one with a modified geometry. The flow was then studied at different condition at the same levels using velocity contours. The results showed that the axial velocity profiles at the downcomer outlet are not completely uniform.
Keywords:Nuclear Power Plant, Pressurized Water Reactor, Downcomer, Flow simulation, Ansys CFX
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[A. Kekec]
Year of publishing:2021
Number of pages:IX, 35 f.
PID:20.500.12556/DKUM-79783 New window
UDC:621.039.577(043.2)
COBISS.SI-ID:86534915 New window
Publication date in DKUM:13.10.2021
Views:1380
Downloads:93
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:17.08.2021

Secondary language

Language:Slovenian
Title:Simulacija toka v povratnem kanalu reaktorske posode tlačnovodnega jedrskega reaktorja
Abstract:V diplomski nalogi so bile simulirane tokovne razmere in pogoji v povratnem kanalu tlačnovodnega jedrskega reaktorja, z namenom proučevanja mešanja hladila v primarnem krogu. Uporabljena je bila programska oprema Ansys CFX. Kot osnova modela je bil uporabljen jedrski reaktor elektrarne Krško v Sloveniji. Geometrija kanala je bila za potrebe enostavnešje simulacije poenostavljena. Narejene so bile tri različne simulacije: prva z normalnimi obratovalnimi pogoji, druga z nesrečo izgube hladila in tretja s spremenjeno geometrijo. Tok je bil proučevan na istih višinskih nivojih z uporabo hitrostnih profilov. Rezultati so pokazali, da hitrostno polje aksialne hitrosti tudi na iztoku kanala ni popolnoma enakomerno.
Keywords:Tlačnovodni jedrski reaktor, Povratni kanal, Simulacija toka, Ansys CFX


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