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Thermal performances and melting risk assessment in a LMFBR fuel pin

  • Agenzia Nazionale Per Le Nuove Tecnologie
  • European Commission, Joint Research Centre
  • General Sytems

Research output: Contribution to journalArticlepeer-review

Abstract

A reliable evaluation of fuel temperature is a key safety requirement in the design of the fuel assembly of a nuclear reactor, especially in the case of a LMFBR whose efficient operation requires high thermal performance fuel. 

The physico-chemical properties such as density, oxygen to metal ratio and thermal conductivity of a typical LMFBR mixed-oxide fuel, which are known to change in a remarkable way under irradiation, strongly affect the temperature profile within the fuel pellet. 

A statistical analysis of the temperature values in the fuel of the Italian Fast Reactor PEC, has been performed by means of the RSM code (Response Surface Methodology) coupled to a Monte-Carlo Technique (MUP code), in order to demonstrate that the melting risk is substantially negligible.

Original languageEnglish
Pages (from-to)154-162
Number of pages9
JournalJournal of Nuclear Materials
Volume130
DOIs
Publication statusPublished - Feb 1985
Externally publishedYes

Bibliographical note

Published online date: 24 February 2003

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