Proceedings of First International Conference on Physics and Technology of Reactors and Applications Vol.1(PHYTRA1)
巻, 号, ページ
出版年月
2007年3月
出版者
和文:
英文:
会議名称
和文:
英文:
The First International Conference on Physics and Technology of Reactors Applications(PHYTRA1)
開催地
和文:
英文:
Marrakech, Morocco
アブストラクト
Safety analysis for small long life fast CANDLE reactor was investigated with ULOF (unprotected loss of flow), ULOHS (unprotected loss of heat sink) and LB (local blockage) accidents. UTOP (unprotected rod run out transient over power) accident during operation time does not exist in CANDLE reactor. The employed reactor system is based on the former steady state research. The core with 1.0m radius and 2.0m length produces 200 MW thermal power in steady state, using enriched N-15 natural uranium as fresh fuel and lead-bismuth as coolant. The former 2 accidents were simulated without scram by neutronic-thermal hydraulic calculation coupled with stationary diffusion calculation. The LB accident was simulated by transient thermal hydraulic calculation only, because in this accident the neutronic factors basically do not change. The analysis results show that the proposed small CANDLE fast reactor can survive all the accidents without any active protection.