[2E01-04] Next Generation Reactor Safety 1

[2E01] Development of a passive safety shutdown device to prevent core damage accidents in fast reactors

(3)Overview of overall project progress through FY2020

*Koji Morita¹, Wei Liu¹, Tatsumi Arima¹, Yuji Arita², Isamu Sato³, Haruaki Matsuura³, Yoshihiro Sekio⁴, Hiroshi Sagara⁵, Masatoshi Kawashima⁵ (1. Kyushu Univ., 2. Univ. of Fukui, 3. TCU, 4. JAEA, 5. Tokyo Tech)

Keywords:Fast reactor, Core damage accident, Passive safety, Prevention of severe accidents

A research project is underway to develop a new subassembly-type passive reactor shutdown device that will enhance the "versatility" and "robustness" of measures to prevent core disruptive accidents in sodium-cooled fast reactors. We report the overall outline of the project and the progress of the studies on the candidate materials and structures of the device, the device simulation experiments, and the dynamic characteristics of the device loaded core until FY2020.