Modeliranje zagrijavanja goriva u bazenu za istrošeno gorivo programom MELCOR

master's thesis

• Title (english): Modeling of Nuclear Fuel Heatup in Spent Fuel Pool Using MELCOR Code
• Author: Mario Filipašić
• Mentor: Davor Grgić (mentor)
• Committee member: Davor Grgić (predsjednik povjerenstva)
• Committee member: Zdenko Šimić (član povjerenstva)
• Committee member: Ivica Pavić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2015-07-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Cilj ovog rada je razmotriti ponašanje bazena za istrošeno gorivo NE Krško u slučaju akcidenta. Poslije terorističkih napada u SAD i poslije nesreće u NE Fukushima počele su se razmatrati mogućnosti dugotrajnog gubitka hlađenja i velikih gubitaka hladioca s posljedičnim otkrivanjem goriva, oksidacijom košuljice, proizvodnjom vodika i u konačnici taljenjem i relokacijom goriva praćeni oslobađanjem velike količine plinovitog radioaktivnog materijala. U sklopu rada napravljen je model bazena za istrošeno gorivo NEK Krško za program MELCOR s dobivenim geometrijskim podacima bazena i gorivnih elementa. Proveden je proračun za slučaj dugotrajnog gubitka hlađenja bazena do trenutka početka značajnije oksidacije košuljice. Dobiveni podatci su protumačeni te grafički prikazani.

Abstract (english)

The aim of this thesis is to consider the behavior of NPP Krško spent fuel pool in case of loss of cooling or small leak. After the terrorist attacks in the United States and after the accident at NPP Fukushima, began the consideration of possibility of long-term loss of cooling and large losses of coolant with subsequent fuel uncovering, clad oxidation, hydrogen production and ultimately fuel melting and relocation followed by releasing large amounts of gaseous radioactive material. As part of the work, a model of NPP Krško spent fuel pool was modeled in MELCOR with given geometric data. An analysis was done for the case of long-term loss of cooling to the moment when cladding oxidation has started. The obtained data was interpreted and graphically presented.

• Keywords: MELCOR; NE Krško; bazen za istrošeno gorivo; gubitak hlađenja
• Keywords (english): MELCOR; NPP Krško; spent fuel pool; heat-up
• Language: croatian
• URN:NBN: urn:nbn:hr:168:530871
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 08:43:57