Published 2011 | Version v1
Journal article Metadata-only

3D Finite Elements Modelling for Design and Performance Analysis of UO2 Pellets

Creators

  • 1. Gerencia Ciclo del Combustible Nuclear (GCCN), Centro Atomico Bariloche (CAB), Comision Nacional de Energy Atomic CNEA, R8402AGP Bariloche (Argentina)
  • 2. Facultad Regional Villa Maria, Universidad Tecnologica Nacional, Av. Universidad 450, X5901ATH Villa Maria (Argentina)
  • 3. Instituto Balseiro (IB), Universidad Nacional de Cuyo, Centro Atomic Bariloche (CAB), R8402AGP Bariloche (Argentina)

Description

The geometry of a fuel pellet is a compromise among the intention to maximize UO2 content and minimize the temperature gradient taking into account the thermomechanical behaviour, the economy, and the safety of the fuel management during and after irradiation. Dishing, shoulders, chamfers, and/or a central hole on a cylinder with an improved l/d relation (length of the pellet/diameter) are introduced in order to optimize the shape of the pellet. The Me Com tools coupled with the BaCo code constitutes a complete system for the 3D analysis of the stress strain state of the pellet under irradiation. CANDU and PHWR MOX fuel will be used to illustrate the excellent qualitative agreement between experimental

Additional details

Publishing Information

Journal Title
Science and Technology of Nuclear Installations (Online)
Journal Volume
2011
Journal Issue
2011
Journal Page Range
p. 10
ISSN
1687-6083

INIS

Country of Publication
Egypt
Country of Input or Organization
Egypt
INIS RN
42050611
Subject category
S42: ENGINEERING; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Descriptors DEI
DESIGN; ECONOMY; FINITE ELEMENT METHOD; FUEL MANAGEMENT; FUEL PELLETS; IRRADIATION; MECHANICAL PROPERTIES; NATURAL URANIUM REACTORS; SAFETY; TEMPERATURE GRADIENTS; URANIUM OXIDES
Descriptors DEC
ACTINIDE COMPOUNDS; CALCULATION METHODS; CHALCOGENIDES; MANAGEMENT; MATHEMATICAL SOLUTIONS; NUCLEAR MATERIALS MANAGEMENT; NUMERICAL SOLUTION; OXIDES; OXYGEN COMPOUNDS; PELLETS; REACTORS; URANIUM COMPOUNDS