1977•University of North Texas Digital Library (University of North Texas)Open access

Fission gas bubble modeling for LMFBR accidents

R.W. Ostensen

Abstract

The behavior of fission-gas bubbles in unrestructured oxide fuel can have a dominant effect on the course of a core disruptive accident in an LMFBR. The paper describes a simplified model of bubble behavior and presents results of that model in analyzing the relevant physical assumptions and predicting gas behavior in molten fuel.

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Key concepts: Nuclear engineering, Fission, Bubble, Fuel element failure, Corium, Environmental science, Nuclear reactor core, Materials science