乏燃料溶液嬗变堆焚烧锕系核素能力分析

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Analysis of Capability of Homogeneous Spent Fuel Transmutation Reactor Core to Burn Actinides

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610041, China

摘要: 针对焚烧锕系核素的目标,选择不同的乏燃料成分和堆芯功率,构造了7种乏燃料溶液嬗变堆(HSTR)堆芯模型,采用溶液堆堆芯燃料管理程序FMCHR计算了堆芯内Pu、Np及其他长寿命锕系核素的燃耗变化,分析了HSTR焚烧锕系核素的能力。结果表明:HSTR可以有效实现焚烧²³⁹Pu的目标,同时嬗变可观数量的²³⁷Np;若要实现²⁴¹Am和²⁴³Am的嬗变,需要增大这2种核素在硝酸钚酰溶液内的初始含量,或采用硝酸铀酰溶液作燃料。
- 乏燃料溶液嬗变堆 /
- 堆芯模型 /
- 锕系核素 /
- 焚烧
Abstract: Seven models of homogeneous spent fuel transmutation reactor（HSTR） core with different spent fuel composition and core power have been constructed to burn the actinides.The burnup variation of plutonium,neptunium and other long-life actinides is calculated by FMCHR to analyze its capability on burning actinides.The result shows that the HSTR can be effectively used for burning ²³⁹Pu and transmuting ²³⁷NP.For the transmutation of ²⁴¹Am and ²⁴³Am,an enhanced initial content of these two nuclides in the plutonyl nitrate or an adoption of uranyl nitrate are required.
- Homogeneous spent fuel transmutation reactor /
- Modeled core /
- Actinides /
- Burning