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http://dx.doi.org/10.5855/ENERGY.2014.23.3.021

Prediction of sacrificial material ablation rate by corium jet impingement  

Suh, Jungsoo (Central Research Institute, Korea Hydro and Nuclear Power Co.)
Kim, Hangon (Central Research Institute, Korea Hydro and Nuclear Power Co.)
Publication Information
Journal of Energy Engineering / v.23, no.3, 2014 , pp. 21-26 More about this Journal
Abstract
EU-APR1400, the Korean nuclear reactor design for European market adopts a so-called core catcher for ex-vessel molten corium retention and cooling as a severe-accident mitigation system. Sacrificial material, which controls melt properties and modifies melt conditions favorable for corium cooling and retention, is usually employed to protect core catcher body from molten corium. Since molten corium can be ejected through a breach of a reactor pressure vessel and impinged on the sacrificial material with enhanced heat transfer at a severe accident, it is very important to predict ablation rate of sacrificial material due to corium jet impingement accurately for core catcher design. In this paper, sacrificial-material ablation model based on boundary layer theory is suggested and compared with the experimental results by KAERI.
Keywords
EU-APR1400; Severe Accident; Core Catcher; Sacrificial Material; Liquid Phase Burning;
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  • Reference
1 Saito, N. et al., "Melting Attack of Solid Plates by High Temperature Liquid Jets - Effect of Crust Fromation", ANS Proc. Nat'l Heat Transfer Conference, Philadelphia, PA, 1989, (August 6-9), pp. 277-289
2 Epstein, M. and Zhou, Q, "Sacrificial Material Ablation Model (Revision 1)", Fauske & Associates, LLC Memo, 2013, June 26
3 Martin, H., "Heat and Mass Transfer Between Impinging Gas Jets and Solid Surfaces", Advances in Heat Transfer 13, Academic Press, New York, 1977
4 Schlichting, H., "Boundary Layer Theory", 7th ed., McGraw-Hill, New York, 1979
5 Epstein, M. "Proposed Jet Impingement Heat Transfer Experiment", Fauske & Associates, LLC Memo (May 27) in "Final Report: Technical Consulting for EU-APR1400 Core Catcher Development", 2011