超级均匀化方法用于球床氟盐冷却高温堆扩散计算

doi:10.11889/j.0253-3219.2017.hjs.40.090604

Nuclear Techniques

• NUCLEAR PHYSICS, INTERDISCIPLINARY RESEARCH • Previous Articles

Super homogenization method applied in diffusion calculation for pebble-bed fluoride-salt-cooled high-temperature reac

DAI Ming^1,3, ZHU Guifeng^1,2, DAI Ye^1,2, ZOU Yang^1,2, YU Xiaohan^1,2

1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China;
2. Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Chinese Academy of Sciences, Shanghai 201800, China;
3. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2017-03-14 Revised:2017-05-27 Online:2017-09-10 Published:2017-09-06
Supported by:
Supported by Strategic Priority Research Program of Chinese Academy of Sciences (No.XDA02010200), Frontier Science Key Program of Chinese Academy of Sciences (No.QYZDY-SSW-JSC016)

Abstract

Abstract:

Background: The control rods of pebble-bed fluoride-salt-cooled high-temperature reactor (PB-FHR) are located in the side reflector. Neutron diffusion calculation in those control rods has difficulties of no fission source in the control rod region and strong effect from the core leakage spectrum. Purpose: This study aims to apply super homogenization (SPH) method in diffusion calculation for PB-FHR. Methods: SPH method is applied in the diffusion calculation for the strong absorber in control rod region located in the reflector area of the PB-FHR, through which the local area of control region is homogenized. The spectra of different places of the reactor core except the control rod region are calculated to modify its cross sections. SPH factors calculation is accomplished by an iteration procedure between SPH and spectra modification (SM). Results: Reactivity worth of the control rod and neutron flux distribution are calculated accurately. Conclusion: Compared with the fine mesh transport reference solution, the verification results demonstrates that the method proposed can accurately model the control rod including the reactivity worth and flux distribution, and it is more suitable for the situation with interference effect between different control rods compared with regular SPH method.

Key words: PB-FHR, Control rod, SPH, Strong absorber

CLC Number:

TL329

DAI Ming, ZHU Guifeng, DAI Ye, ZOU Yang, YU Xiaohan. Super homogenization method applied in diffusion calculation for pebble-bed fluoride-salt-cooled high-temperature reac[J].Nuclear Techniques, 2017, 40(9): 90604-090604.

References

1 Forsberg C W, Peterson P F, Kochendarfer R A. Design options for the advanced high-temperature reactor[C]. Proceedings of ICAPP'08, Analeim, CA, USA, June 8-12, 2008.
2 孙建友, 邹杨, 严睿, 等. 球床氟盐冷却高温堆中 6Li 摩尔浓度对冷却剂温度反应性系数影响的研究[J]. 核技术, 2014, 37(9):090605. DOI:10.11889/j.0253-3219. 2014.hjs.37.090605. SUN Jianyou, ZOU Yang, YAN Rui, et al. Analysis of the coolant reactivity coefficients of FHRs with 6Li contents of coolant[J]. Nuclear Techniques, 2014, 37(9):090605. DOI:10.11889/j.0253-3219.2014.hjs.37.090605.
3 孙建友, 邹杨, 严睿, 等. PB-FHR 堆芯活性区体积对冷却剂温度反应性系数影响的研究[J]. 核技术, 2014, 37(12):120603. DOI:10.11889/j.0253-3219.2014.hjs.37. 120603. SUN Jianyou, ZOU Yang, YAN Rui, et al. Study on the influence of core volume of PB-FHR on coolant temperature reactivity coefficient[J]. Nuclear Techniques, 2014, 37(12):120603. DOI:10.11889/j.0253-3219.2014. hjs.37.120603.
4 Zhu G, Zou Y, Xu H, et al. Uranium utilization with thorium blanket in pebble bed fluoride salt-cooled high temperature reactor[J]. Progress in Nuclear Energy, 2015, 83:374-386.
5 许云林, 经荥清, 王德安. 10 MW 高温气冷堆反应性当量计算[J]. 核动力工程, 1997, 18(6):500-504. XU Yunlin, JING Xingqing, WANG Dean. Reactivity worth calculation for control rods of high temperature gas-cooled reactor[J]. Nuclear Power Engineering, 1997, 18(6):500-504.
6 郭炯, 李富, 王登营. 高温气冷堆控制棒区等效截面方法的改进[J]. 核动力工程, 2010, 32(S2):128-131. GUO Jiong, LI Fu, WANG Dengying. Treatment and improvement of equivalent cross sections in control rod region for high temperature gas-cooled reactor[J]. Nuclear Power Engineering, 2010, 32(S2):128-131.
7 周旭华, 李富, 王登营, 等. 高温气冷堆控制棒区不连续因子的计算与应用[J]. 核动力工程, 2008, 29(6):1-5. ZHOU Xuhua, LI Fu, WANG Dengying, et al. Calculation and application of discontinuity factors in control rod region for high temperature gas-cooled reactor[J]. Nuclear Power Engineering, 2008, 29(6):1-5.8 Alain Hébert. Applied reactor physics[M]. Ottawa:Presses Internationals Polytechnique, 2009:247-253.
9 Mphahlele R, Ougouag A M, Ivanov K N, et al. Spectral zone selection methodology for pebble bed reactors[J]. Annals of Nuclear Energy, 2011, 38(1):80-87.
10 戴明, 朱贵凤, 戴叶, 等. 基于 CITATION-ORIGEN2 球床堆平衡态计算程序的实现[J]. 原子能科学技术, 2017, 51(1):113-119. DAI Ming, ZHU Guifeng, DAI Ye, et al. Burnup calculation for equilibrium cycle of pebble-bed reactor with CITATION-ORIGEN2 codes[J]. Atomic Energy Science and Technology, 2017, 51(1):113-119.
11 李满仓, 王侃, 姚栋. 基于连续能量蒙特卡罗方法的均匀化群常数计算[J]. 核科学与工程, 2012, 32(4):306-314. LI Mancang, WANG Kan, YAO Dong. Continuous energy Monte Carlo method based homogenization multi-group constants calculation[J]. Nuclear Science and Engineering, 2012, 32(4):306-314.
12 Okumura K. COREBN:a core burn-up calculation module for SRAC2006[R]. Ibaraki-ken:Japan Atomic Energy Agency, 2007:6-7.

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Super homogenization method applied in diffusion calculation for pebble-bed fluoride-salt-cooled high-temperature reac

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