Safety Assessment of Two Advanced Ferritic Steel Molten Salt Blanket Design Concepts

Journal Article · Mon Nov 01 04:00:00 EST 2004 · Fusion Engineering and Design

DOI:https://doi.org/10.1016/j.fusengdes.2004.07.010· OSTI ID:912217

Merrill, B J; Sawan, M; Wong, C P.C.; Nygren, R E; Cadwallader, L C; Malang, S; Sze, D -K

In this article we explore some of the safety issues associated with two advanced ferritic steel (AFS) molten salt blanket designs from the Advanced Power Extraction (APEX) design study. In particular, we examine radiological inventories, decay heat, waste disposal ratings, and toxic chemical inventories of these design concepts. In addition, we predict the thermal response of these blanket designs during accident conditions, and the mobilization of the radiological inventories and site boundary dose from the release of this mobilized material during a worst-case confinement-boundary-bypass accident. The molten salts being proposed for these blanket concepts are Flibe and Flinabe, and the structural material is a nano-composite strengthened ferritic steel alloy called 12YWT. The estimated dose at the site boundary is less than the no-evacuation limit of 10 mSv for a ground level release during worst-case weather conditions if plant isolation occurs within five days.

• Research Organization: Idaho National Laboratory (INL)
• Sponsoring Organization: DOE - SC
• DOE Contract Number: AC07-99ID13727
• OSTI ID: 912217
• Report Number(s): INEEL/JOU-03-00926
• Journal Information: Fusion Engineering and Design, Journal Name: Fusion Engineering and Design Journal Issue: 1-3 Vol. 72; ISSN 0920-3796; ISSN FEDEEE
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
ACCIDENTS
ALLOYS
APEX
BUILDING MATERIALS
Bypass accidents
DESIGN
FERRITIC STEELS
FLIBE
GROUND LEVEL
INVENTORIES
LOCA
LOVA
MOLTEN SALTS
SAFETY
WASTE DISPOSAL
WEATHER
fusion safety
liquid metal first walls
molten salts
site dose