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

被引：0

作者：

Lou L. ^{[1
]}

Chai X. ^{[1
]}

Yao D. ^{[1
]}

Li M. ^{[1
]}

Chen L. ^{[1
]}

Liu X. ^{[1
]}

Zhang H. ^{[1
]}

Li S. ^{[1
]}

Tang X. ^{[1
]}

Zhou N. ^{[1
]}

机构：

[1] Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu

来源：

Hedongli Gongcheng/Nuclear Power Engineering | 2021年 / 42卷

关键词：

Corrected optical length; Dispersed particle-type systems; Double-heterogeneity; Optical length; Physical boundary; Reactivity calculation deviation; Volumetric homogenization;

D O I：

10.13832/j.jnpe.2021.S2.0082

中图分类号：

学科分类号：

摘要：

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. Copyright ©2021 Nuclear Power Engineering. All rights reserved.

引用

页码：82 / 88

页数：6

共 11 条

[1] DAI X, CAO X R, YU S H, Et al., Conceptual core design of an innovative small PWR utilizing fully ceramic microencapsulated fuel, Progress in Nuclear Energy, 75, pp. 63-71, (2014)
[2] GENTRY C, MALDONADO I, GODFREY A, Et al., A neutronic investigation of the use of fully ceramic microencapsulated fuel for Pu/Np burning in PWRs, Nuclear Technology, 186, 1, pp. 60-75, (2014)
[3] SHE D, GUO J, LIU Z H, Et al., PANGU code for pebble-bed HTGR reactor physics and fuel cycle simulations, Annals of Nuclear Energy, 126, pp. 48-58, (2019)
[4] VAN DAM H., Long-term control of excess reactivity by burnable particles, Annals of Nuclear Energy, 27, 8, pp. 733-743, (2000)
[5] VAN DAM H., Long-term control of excess reactivity by burnable poison in reflector regions, Annals of Nuclear Energy, 27, 1, pp. 63-69, (2000)
[6] KLOOSTERMAN J L., Application of boron and gadolinium burnable poison particles in UO<sub>2</sub> and PUO<sub>2</sub> fuels in HTRs, Annals of Nuclear Energy, 30, 17, pp. 1807-1819, (2003)
[7] TALAMO A., Effects of the burnable poison heterogeneity on the long term control of excess of reactivity, Annals of Nuclear Energy, 33, 9, pp. 794-803, (2006)
[8] (2001)
[9] pp. 139-141, (2004)
[10] pp. 149-151, (2005)

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