Neutronics Analysis on MOX assemblies for HPR1000 Cores

Liu Kun; Liu Tongxian; Jiang Zhumin

doi:10.13832/j.jnpe.2022.S2.0234

Volume 43 Issue S2

Dec. 2022

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Liu Kun, Liu Tongxian, Jiang Zhumin. Neutronics Analysis on MOX assemblies for HPR1000 Cores[J]. Nuclear Power Engineering, 2022, 43(S2): 234-238. doi: 10.13832/j.jnpe.2022.S2.0234

Citation:

Liu Kun, Liu Tongxian, Jiang Zhumin. Neutronics Analysis on MOX assemblies for HPR1000 Cores[J]. Nuclear Power Engineering, 2022, 43(S2): 234-238. doi: 10.13832/j.jnpe.2022.S2.0234

Liu Kun, Liu Tongxian, Jiang Zhumin. Neutronics Analysis on MOX assemblies for HPR1000 Cores[J]. Nuclear Power Engineering, 2022, 43(S2): 234-238. doi: 10.13832/j.jnpe.2022.S2.0234

Citation:

Liu Kun, Liu Tongxian, Jiang Zhumin. Neutronics Analysis on MOX assemblies for HPR1000 Cores[J]. Nuclear Power Engineering, 2022, 43(S2): 234-238. doi: 10.13832/j.jnpe.2022.S2.0234

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Neutronics Analysis on MOX assemblies for HPR1000 Cores

doi: 10.13832/j.jnpe.2022.S2.0234

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2022-07-22
Rev Recd Date: 2022-09-26
Publish Date: 2022-12-31

Abstract

Abstract

In combination with the development needs of nuclear energy in China, the neutronics characteristics of mixed oxide (MOX) fuel assemblies are studied using SCIENCE software with HPR1000 reactor as the research object, which lays a theoretical foundation for the subsequent large-scale loading of MOX fuel assemblies in HPR1000 unit and the realization of closed fuel cycle. Numerical analysis is carried out on the influencing factors such as initial enrichment, discharge burnup and core operation parameters of CF3 fuel assembly, and the effects of assembly layout, plutonium vector, total plutonium loading and matrix uranium composition on key neutronics parameters such as reactivity of MOX fuel assembly are evaluated. The numerical results show that when MOX modules are arranged around, it is conducive to achieving better reactivity control capability, reducing reactivity control pressure, making better use of existing core design conditions, and realizing the utilization of plutonium resources. When the fission nuclide composition in the fuel rod is increased, the energy spectrum of the assembly hardens, and the reactivity feedback ability and reactivity control capability are further weakened. For the design scheme of HPR1000 reactor core, additional reactivity control means may be required to realize the reactivity control of MOX fuel assembly during burnup.
- HPR1000,
- Mixed oxide (MOX),
- PWR,
- CF3 fuel assembly

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References(4)

References

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