Izračun termohidrauličkih uvjeta u reaktorskoj zgradi nuklearne elektrane

master's thesis

• Title (english): Calculation of thermo-hydraulic conditions inside containment of a nuclear power plant
• Author: Kristina Mileta
• Mentor: Siniša Šadek (mentor)
• Committee member: Siniša Šadek (predsjednik povjerenstva)
• Committee member: Davor Grgić (član povjerenstva)
• Committee member: Perica Ilak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2020-07-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U radu se detaljno opisuju procesi koji se događaju u slučaju teške nesreće u nuklearnoj elektrani PWR tipa. Programski paket ASTEC koristi se za simulaciju takvih događaja, konkretno za termohidrauličke proračune u nuklearnim elektranama u slučaju teške nesreće. Opisano je na koji način ASTEC funkcionira i koje su osnovne strukture koje se koriste pri izradi ulazne datoteke. U radu se proučavaju postojeći model zaštitne zgrade nuklearne elektrane Krško i rezultati proračuna tog modela. Pretpostavljena je teška nesreća potpunog gubitka vanjskog i lokalnog napajanja. Osim toga, opisuje se proces izrade detaljnijeg modela zaštitne zgrade i uspoređuje se s izvornim modelom. Također je napravljena i priprema za izradu završnog modela zaštitne zgrade koji je predložen pri izradi originalnog modela.

Abstract (english)

Paper describes processes that happen during a severe accident in a nuclear power plant of PWR type in detail. ASTEC software package is used for simulation of such events, specifically for thermo-hydraulic calculations in nuclear power plants during severe accidents. The way ASTEC works and its basic structures used to form the input file are described. Paper studies the existing containment model of NPP Krško and the calculation results of that model. Calculations are based on the assumption of station blackout severe accident where the NPP loses both off-site and on-site AC power. Also, the process of making a detailed model of the containment building is described and it is compared to the original. Furthermore, the preparations for the final containment model are made based on the suggestions made by the authors of the original model.

• Keywords: Nuklearna elektrana Krško; termohidraulički proračun; ASTEC; model zaštitne zgrade; teška nesreća; potpuni gubitak napajanja
• Keywords (english): Nuclear Power Plant Krško; thermo-hydraulic calculation; ASTEC; containment model; severe accident; station blackout (SBO)
• Language: croatian
• URN:NBN: urn:nbn:hr:168:875768
• 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: 2023-01-13 10:27:15