SciTech Connect

Title: Fast Spectrum Molten Salt Reactor Options

Fast Spectrum Molten Salt Reactor Options During 2010, fast-spectrum molten-salt reactors (FS-MSRs) were selected as a transformational reactor concept for light-water reactor (LWR)-derived heavy actinide disposition by the Department of Energy-Nuclear Energy Advanced Reactor Concepts (ARC) program and were the subject of a preliminary scoping investigation. Much of the reactor description information presented in this report derives from the preliminary studies performed for the ARC project. This report, however, has a somewhat broader scope-providing a conceptual overview of the characteristics and design options for FS-MSRs. It does not present in-depth evaluation of any FS-MSR particular characteristic, but instead provides an overview of all of the major reactor system technologies and characteristics, including the technology developments since the end of major molten salt reactor (MSR) development efforts in the 1970s. This report first presents a historical overview of the FS-MSR technology and describes the innovative characteristics of an FS-MSR. Next, it provides an overview of possible reactor configurations. The following design features/options and performance considerations are described including: (1) reactor salt options-both chloride and fluoride salts; (2) the impact of changing the carrier salt and actinide concentration on conversion ratio; (3) the conversion ratio; (4) an overview of the fuel salt chemical processing; (5) potential power cycles more » and hydrogen production options; and (6) overview of the performance characteristics of FS-MSRs, including general comparative metrics with LWRs. The conceptual-level evaluation includes resource sustainability, proliferation resistance, economics, and safety. The report concludes with a description of the work necessary to begin more detailed evaluation of FS-MSRs as a realistic reactor and fuel cycle option. « less
Authors: ; ; ; ; ;
Publication Date:
OSTI Identifier:1018987
Report Number(s):ORNL/TM-2011/105
AF5832020; NEAF322; TRN: US1103588
DOE Contract Number:DE-AC05-00OR22725
Resource Type:Technical Report
Research Org:Oak Ridge National Laboratory (ORNL)
Sponsoring Org:NE USDOE - Office of Nuclear Energy
Country of Publication:United States
Language:English
Subject: 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 08 HYDROGEN; ACTINIDES; CHLORIDES; CONVERSION RATIO; DESIGN; ECONOMICS; EVALUATION; FLUORIDES; FUEL CYCLE; HYDROGEN PRODUCTION; METRICS; MOLTEN SALT REACTORS; PERFORMANCE; PROCESSING; PROLIFERATION; SAFETY