Modeliranje izgaranja integralnih sagorivih apsorbera koji sadrže obogaćeni bor

scientific master's theses

• Title (english): Depletion Modeling Of Integral Fuel Burnable Absorbers Containing Enriched Boron
• Author: Kristijan Gergeta
• Mentor: Dubravko Pevec (mentor)
• Committee member: Mile Baće (predsjednik povjerenstva)
• Committee member: Dubravko Pevec (član povjerenstva)
• Committee member: Tomislav Šmuc (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; (Department of Applied Physics); Zagreb
• Defense date and country: 2004, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering; Power Engineering
• Universal decimal classification (UDC): 621.3 - Electrical engineering

Abstract

Nakon općenitog razmatranja korištenih sagorivih apsorbera, opisani su postupci modeliranja izgaranja sagorivih apsorbera u programima PSU/LEOPARD i WIMSD. Korištenjem transportnog računalnog programa WIMSD simulirano je izgaranje gorivnog elementa sa različitim konfiguracijama integralnih sagorivih apsorbera koji sadrže obogaćeni bor. Određena je ekvivalentna koncentracija topivog bora u ovisnosti o odgoru koja reprezentira izgaranje integralnih sagorivih apsorbera s obogaćenim borom. Korištenjem tako određenih ekvivalentnih koncentracija bora, paket računalnih programa FUMACS/FEEC2001 je unaprijeđen uvođenjem opcije proračuna jezgri koje sadrže gorivne elemente s različitim konfiguracijama integralnih sagorivih apsorbera s obogaćenim borom. Ta je nova opcija verificirana i validirana na shemama zamjene i razmještaja goriva za 12-mjesečni i 18-mjesečni radni ciklus NE Krško u kojem se koriste integralni sagorivi apsorberi s prirodnim i obogaćenim borom.

Abstract (english)

After the burnable absorber introduction section, burnable absorber depletion modeling in PSU/LEOPARD and WIMSD lattice codes has been described. Burnup of fuel assembly with different integral fuel burnable absorber loadings containing enriched boron have been modeled by WIMSD transport code. Equivalent soluble boron concentration that represents depletion of the integral fuel burnable absorbers containing enriched boron has been calculated. Using calculated equivalent soluble boron concentrations, FUMACS/FEEC2001 computer code package has been upgraded with new global calculation feature intended for the cores using fuel assemblies with different integral fuel burnable absorber loadings containing enriched boron. This new feature has been verified and validated on 12-month and 18-month operating cycle core loading patterns of the nuclear power plant Krško using integral fuel burnable absorbers containing natural and enriched boron.

• Keywords: sagorivi apsorber; modeliranje izgaranja; obogaćeni bor; ekvivalentna koncentracija topivog bora; 12-mjesečni radni ciklus; 18-mjesečni radni ciklus; FUMACS/FEEC2001; FUMACS-G; WIMSD; verifikacija; validacija
• Keywords (english): burnable absorber; depletion modeling; enriched boron; equivalent soluble boron concentration; 12-month operating cycle; 18-month operating cycle; FUMACS/FEEC2001; FUMACS-G; WIMSD; verification; validation
• Language: croatian
• URN:NBN: urn:nbn:hr:168:191574
• Study programme: Title: Postgraduate master programme in electrical engineering; Study programme type: university; Study level: postgraduate; Academic / professional title: Magistar znanosti elektrotehnike (Magistar znanosti elektrotehnike)
• Catalog URL: https://lib.fer.hr:8443/cgi-bin/koha/catalogue/detail.pl?biblionumber=29269
• Type of resource: Text
• Extent: VI, 112 str. ; 30 cm
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-10-24 13:07:18