AN ANALYSIS OF CORE-CATCHERS CONCEPTS AND NUMERICAL ESTIMATES OF A THERMAL BEHAVIOR OF A FLAT CORE-CATCHER WITH THE PROTECTIVE MATERIALS OF ZIRCONIUM DIOXIDE CONCRETE (PREPRINT IBRAE-1997-18)

Preprint IBRAE-97-18

Vasilev A.D., Krylov S.F., Pakhomov Е.Р., Popkov A.G., Strizhov V.F., Filippov A.S., Chudanov V.V. 

A brief description of ex- vessel core retention devices (core catchers) concepts is presented. Main requirements for core catchers designs are considered. The results of numerical estimates and brief description of experiments with corium simulants and prototypes are given. The results of preliminary numerical modeling of thermal behavior of core catcher with zirconium dioxide concrete as protective material are presented. 

Bibliographical reference

Vasilev A.D., Krylov S.F., Pakhomov Е.Р., Popkov A.G., Strizhov V.F., Filippov A.S., Chudanov V.V.  AN ANALYSIS OF CORE-CATCHERS CONCEPTS AND NUMERICAL ESTIMATES OF A THERMAL BEHAVIOR OF A FLAT CORE-CATCHER WITH THE PROTECTIVE MATERIALS OF ZIRCONIUM DIOXIDE CONCRETE (in Russian). Preprint IBRAE-97-18. Moscow. Nuclear Safety Institute. November 1997. 47 p. – Refs.: 51 items.