Modeliranje težkih nesreč v hitrih z natrijem hlajenih jedrskih reaktorjih : magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo

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Modeliranje težkih nesreč v hitrih z natrijem hlajenih jedrskih reaktorjih : magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo

Končar, Mihael Boštjan, 1998-

Hitri z natrijem hlajeni reaktorji so pomembna smer razvoja jedrske tehnike. V primeru težke nesreče s taljenjem sredice lahko nastanejo energijske interakcije med hladilom in raztaljeno sredico ... (parne eksplozije), ki lahko ogrozijo celovitost reaktorske posode. Poznavanje in napovedovanje fizikalnih procesov med interakcijo taline s hladilom je pomembno z vidika varnosti. V prvem delu naloge smo predstavili pomen in vlogo SFR v energetiki ter opisali glavne tehnološke značilnosti. Podali smo osnovne pristope k jedrski varnosti ter obravnavali potek in blaženje hipotetične težke nesreče s taljenjem sredice. Pri tem smo se osredotočili na interakcijo med reaktorskim hladilom in staljeno sredico. V drugem delu magistrskega dela smo obravnavali filmsko uparjanje okoli delca taline v podhlajenem toku hladila. Z uporabo računalniške dinamike tekočin smo izdelali numerični model filmskega uparjanja. Pri tem smo uporabili enotekočinsko formulacijo dvofaznega sistema z zasledovanjem medfazne površine. Glavni prispevek magistrskega dela je razvoj in utemeljitev izvirnega modela uparjanja in kondenzacije v ekstremnih pogojih. Prav tako smo v sklopu študije podrobno preučili delovanje obstoječega Leejevega modela uparjanja in kondenzacije za simulacije filmskega uparjanja v toku podhlajene tekočine. Oba modela smo preverili tudi z analitično rešitvijo Stefanovega problema in primerjali z eksperimentalnimi podatki.

Type of material - master's thesis ; adult, serious

Publication and manufacture - Ljubljana : [M. B. Končar], 2023

Language - slovenian

COBISS.SI-ID - 156954371

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Repository of the University of Ljubljana – RUL

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Author
Končar, Mihael Boštjan, 1998-

Other authors
Sekavčnik, Mihael | Uršič, Mitja, 1976-

Availability in libraries

Library/institution	City	Acronym	For loan	Other holdings
Faculty of Mechanical Engineering, Ljubljana	Ljubljana	FSLJ	reading room 1 cop.

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Year	Impact factor		Edition		Category		Classification
Year	JCR	SNIP	JCR	SNIP	JCR	SNIP	JCR	SNIP

Links to authors' personal bibliographies	Links to information on researchers in the SICRIS system
Končar, Mihael Boštjan, 1998-	58662
Sekavčnik, Mihael	14342
Uršič, Mitja, 1976-	29182

Source: Personal bibliographies and: SICRIS

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