[1F04-06] Severe Accidents at Reprocessing Plant

[1F06] Enhancement of Analysis Method for Important Phenomenon of Severe Accidents at Reprocessing Plant

(3)Model Enhancement Plan for FATE code.

*Hisayuki Kyo¹, Daisuke Fujiwara¹, Hiroshi Shirai¹, Takashi Kodama², Yoshikazu Tamauchi², Hiroshi Kinuhata² (1. TEPCO SYSTEMS CORPORATION, 2. Japan Nuclear Fuel Limited)

Keywords:Severe Accident, Boiling and Drying Accident, Reproccesing Plant, FATE, PIRT

In order to evaluate the boiling and drying accident at reprocessing plant, we are planning to improve the evaluation models built in the FATE code. In this research, we prepared the PIRT (Phenomena Identification and Ranking Table) by picking important physicochemical phenomena up from the accident scenario, and based on this PIRT, we indentified the evaluation models that is necessary to improve.