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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 a 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, in order to demonstrate that the melting risk is substantially negligible.

Additional information

Authors: VETTRAINO F ENEA, BOLOGNA (ITALY) CACCIABUE P C JRC ISPRA ESTAB. (ITALY) BRUNELLI F GENERAL SYSTEMS, MILANO (ITALY) , ENEA, BOLOGNA (ITALY);JRC ISPRA ESTAB. (ITALY);GENERAL SYSTEMS, MILANO (ITALY)
Bibliographic Reference: "THERMODYNAMICS OF NUCLEAR MATERIALS", HAMILTON, ONTARIO (CANADA), AUG. 13-17, 1984, PUBL. IN: JOURNAL OF NUCLEAR MATERIALS, VOL. 130 (1985), PP. 154-162
Record Number: 1989123094300 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en