科技报告详细信息
Utilization of Minor Actinides as a Fuel Component for Ultra-Long Life Bhr Configurations: Designs, Advantages and Limitations
Dr. Pavel V. Tsvetkov
关键词: ACTINIDES;    CONFIGURATION;    ENERGY;    FLEXIBILITY;    FUEL CYCLE;    FUEL MANAGEMENT;    FUELS;    HEAT;    LICENSES;    NEUTRONS;    NUCLEAR ENERGY;    OPERATION;    REACTORS;    RESOURCES;    SPENT FUELS;    TEMPERATURE RANGE 1000-4000 K;    WASTES;   
DOI  :  10.2172/953347
RP-ID  :  DOE/ID/14655
PID  :  OSTI ID: 953347
Others  :  Other: NERI Project No. 2005-094
Others  :  TRN: US1000864
美国|英语
来源: SciTech Connect
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【 摘 要 】

This project assessed the advantages and limitations of using minor actinides as a fuel component to achieve ultra-long life Very High Temperature Reactor (VHTR) configurations. Researchers considered and compared the capabilities of pebble-bed and prismatic core designs with advanced actinide fuels to achieve ultra-long operation without refueling. Since both core designs permit flexibility in component configuration, fuel utilization, and fuel management, it is possible to improve fissile properties of minor actinides by neutron spectrum shifting through configuration adjustments. The project studied advanced actinide fuels, which could reduce the long-term radio-toxicity and heat load of high-level waste sent to a geologic repository and enable recovery of the energy contained in spent fuel. The ultra-long core life autonomous approach may reduce the technical need for additional repositories and is capable to improve marketability of the Generation IV VHTR by allowing worldwide deployment, including remote regions and regions with limited industrial resources. Utilization of minor actinides in nuclear reactors facilitates developments of new fuel cycles towards sustainable nuclear energy scenarios.

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