Molten Corium Oxidation Model

In order to model oxidation of Zr-O and U-Zr-O melts, available data on post-test examinations re-frozen oxidized melts in the CORA and QUENCH bundle test performed at the Research Centre Karlsruhe (FZK), are used. Furthermore, data from new separate effect tests on ZrO2 crucible dissolution by molten Zry specially designed for investigation of long-term behaviour during the melt oxidation stage, are taken into consideration. On this base, a new model on oxidation of molten Zr-O and U-Zr-O mixtures in steam was developed, which allows analysis and interpretation of melt oxidation and hydrogen production observed in various bundle tests. The complete formulation of the analytical model, development of the numerical model and its validation against the experimental data are presented.

VESCHUNOV M.S.;  MUELLER Klaus;  BERDYSHEV A.V.; 

2006-05-18

Elsevier

JRC30134

https://publications.jrc.ec.europa.eu/repository/handle/JRC30134,