[2D05-09] Accident-tolerant Fuel 2

[2D08] R&D for introducing silicon carbide materials to safety improvement of BWRs core

(3) Plant transient analysis with SiC clad fuel for RIA accident

*Hideki Horie¹, Yutaka Takeuchi¹, Kazuo Kakiuchi¹, Hisaki Sato¹, Noriko Shirasu², Hiroaki Saito², Shinichiro Yamashita², Tokio Fukahori² (1. Toshiba Energy Systems & Solutions Corporation, 2. Japan Atomic Energy Agency)

Keywords:Accident Tolerant Fuel, SiC, RIA, TRAC, FEMAXI

Thermal-hydraulic and mechanical behavior of fuel using SiC cladding was evaluated for reactivity-initiated accident (RIA), and the result was compared to a behavior for fuel using Zry cladding. As a result, it was confirmed that there is not so large difference between both in the thermal-hydraulic behavior. On the other hand, it was confirmed that the mechanical behaviro depended on design conditions such as a gap width.