Negative void reactivity in large FBRs with a hydrogeneous moderator
Conference
·
· Transactions of the American Nuclear Society; (United States)
OSTI ID:5817290
- Univ. of Tokyo, Bunkyo (Japan)
The positive reactivity at voiding coolant has long been the safety concern of large power fast breeder reactors (FBRs). The most well-known solutions are pancake or modular cores, or homogeneous addition of moderator in a core. Every one of these methods significantly diminishes the capital cost and the breeding ratio. In our previous design of the steam-cooled FBR, thin zirconium hydride layers were placed between the seed and axial blanket for reducing the void reactivity. The effectiveness of the layers is analyzed in this paper for realizing negative coolant void reactivity in the large-sized steam cooled FBR and liquid-metal-cooled FBR (LMFBR).
- OSTI ID:
- 5817290
- Report Number(s):
- CONF-930601--
- Conference Information:
- Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 68
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500* -- Power Reactors
Breeding
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900 -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
BREEDER REACTORS
COMPUTERIZED SIMULATION
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
HYDRIDE MODERATORS
HYDRIDES
HYDROGEN COMPOUNDS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MODERATORS
REACTIVITY
REACTOR ACCIDENTS
REACTOR SAFETY
REACTORS
SAFETY
SIMULATION
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM HYDRIDES
210500* -- Power Reactors
Breeding
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900 -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
BREEDER REACTORS
COMPUTERIZED SIMULATION
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
HYDRIDE MODERATORS
HYDRIDES
HYDROGEN COMPOUNDS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MODERATORS
REACTIVITY
REACTOR ACCIDENTS
REACTOR SAFETY
REACTORS
SAFETY
SIMULATION
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM HYDRIDES