[1E08-12] Severe Accident 2

[1E09] Study on FPs removal effect on the containment vessel penetrations during a severe accident

(1)Development of an experimental method for FPs removal effect on the containment vessel penetrations

*Koichi Nakamura¹, Taizo Kanai¹, Atsushi Ui¹, Satoshi Nishimura¹, Yoshihisa Nishi¹, Wei Liu², Koji Morita² (1. CRIEPI, 2. Kyushu Univ.)

Keywords:Severe accident, Fission products behavior, Containment vessel penetrations, Aerosol

Fission products (FPs) from the containment failure sites may be released to the environment through the reactor building in the event of a severe accident. To develop a realistic evaluation method for FP release behavior, it is crucial to quantify FPs removal effect on the contain vessel penetrations. In this paper, we report on the experimental method with the actual conditions and the results of preliminary tests.