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  • Comparative analysis of a hypothetical loss-of-flow accident in an irradiated LMFBR core using different computer models for a common benchmark problem

Abstract

This report summarises the results of an international exercise to compare whole-core accident calculations of the initiation phase of an unprotected LOF accident in a large irradiated LMFBR. The results for the accident phase before pin failure are in rather good agreement except for the fuel pin mechanics predictions. There are also some differences in the sodium boiling calculations, but the voiding rates which are of key importance are very similar. The post failure fuel motion and sodium voiding predictions show significant differences. However, the majority of these calculations agree that temporary fuel accumulations occur which increase the power beyond that caused by sodium voiding alone.

Additional information

Authors: WIDER H U, JRC Ispra Estab. (IT);DEVOS J, JRC Ispra Estab. (IT);NGUYEN G, JRC Ispra Estab. (IT);VAN GOETHEM G, JRC Ispra Estab. (IT);LESLIE R, UKAEA, Risley (GB);RUDGE T, UKAEA, Risley (GB);STRUWE D, KFK, Karlsruhe (DE);ROYL P, KFK, Karlsruhe (DE);MILES K J, US DOE/ANL (US);TENTNER A M, US DOE/ANL (US);PIZZICA P, US NRC/ANL (US)
Bibliographic Reference: EUR 11925 EN (1989) FS, 143 pp., ECU 12.50
Availability: (2)
ISBN: ISBN 92-825-9471-8;CD-NA-
Record Number: 198910418 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en
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