Research of Double-Heterogeneity Physical Boundary on Dispersed Particle-type Systems

Lou Lei; Chai Xiaoming; Yao Dong; Li Mancang; Chen Liang; Liu Xiaoli; Zhang Hongbo; Li Sinan; Tang Xiao; Zhou Nan

doi:10.13832/j.jnpe.2021.S2.0082

Volume 42 Issue S2

Dec. 2021

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Article Navigation > Nuclear Power Engineering > 2021 > 42(S2): 82-88

Lou Lei, Chai Xiaoming, Yao Dong, Li Mancang, Chen Liang, Liu Xiaoli, Zhang Hongbo, Li Sinan, Tang Xiao, Zhou Nan. Research of Double-Heterogeneity Physical Boundary on Dispersed Particle-type Systems[J]. Nuclear Power Engineering, 2021, 42(S2): 82-88. doi: 10.13832/j.jnpe.2021.S2.0082

Citation:

Lou Lei, Chai Xiaoming, Yao Dong, Li Mancang, Chen Liang, Liu Xiaoli, Zhang Hongbo, Li Sinan, Tang Xiao, Zhou Nan. Research of Double-Heterogeneity Physical Boundary on Dispersed Particle-type Systems[J]. Nuclear Power Engineering, 2021, 42(S2): 82-88. doi: 10.13832/j.jnpe.2021.S2.0082

Citation:

Lou Lei, Chai Xiaoming, Yao Dong, Li Mancang, Chen Liang, Liu Xiaoli, Zhang Hongbo, Li Sinan, Tang Xiao, Zhou Nan. Research of Double-Heterogeneity Physical Boundary on Dispersed Particle-type Systems[J]. Nuclear Power Engineering, 2021, 42(S2): 82-88. doi: 10.13832/j.jnpe.2021.S2.0082

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Research of Double-Heterogeneity Physical Boundary on Dispersed Particle-type Systems

doi: 10.13832/j.jnpe.2021.S2.0082

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

Received Date: 2021-07-19
Accepted Date: 2021-12-06
Rev Recd Date: 2021-11-14
Publish Date: 2021-12-29

Abstract

Abstract

Dispersed particle-type systems cannot be described with traditional neutronics calculation programs because of the double-heterogeneity (DH), and the direct use of Volumetric Homogenization Method (VHM) will bring reactivity calculation deviation. In this paper, by analyzing the calculation deviation of volumetric homogenization reactivity of dispersed particle fuel and different types of dispersed particle burnable poison and its relationship with optical length, it is proposed that the influence factors of calculation deviation shall be integrated into corrected optical length. The physical boundary of double-heterogeneity of dispersed particle-type system is proposed. When the corrected optical length is greater than 10⁻⁴, the reactivity calculation deviation of the volumetric homogenization method will be more than 100pcm, so the double-heterogeneity of the dispersed particle-type system needs to be taken into account.
- Dispersed particle-type systems,
- Double-heterogeneity,
- Physical boundary,
- Volumetric homogenization,
- Reactivity calculation deviation,
- Optical length,
- Corrected optical length

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References(11)

References

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