NUCLEAR TECHNIQUES, Volume. 47, Issue 12, 120603(2024)
Nuclear safety analysis of molten salt reactor criticality with changes in 7Li abundance
Figures & Tables(9)
Fig. 2. Diagram of cross section dimensions of porous channel core
Table 1. MSRE fuel salt nuclide ratio and code
View tableView in ArticleTable 1. MSRE fuel salt nuclide ratio and code
核素 Nuclide 配比 Proportion 核子数 Nucleon number F 1.468 0 19 Li 0.650 0 6, 7 Be 0.291 0 9 90Zr 0.026 1 90 91Zr 0.005 6 91 92Zr 0.008 5 92 94Zr 0.008 4 94 96Zr 0.001 3 96 235U 0.001 8 235 238U 0.007 2 238
Table 2. keff with 100% abundance of 7Li
View tableView in ArticleTable 2. keff with 100% abundance of 7Li
项目 Items 数值 Value 迭代次数 Iterations 0 迭代系数 Iterative parameter 1.000 0 堆芯高度 Core height / m 1.630 0 堆芯半径 Core radius / m 1.000 0 孔道半径 Channel radius / m 0.033 7 栅格半宽 Grid half width / m 0.046 7 窗格半宽 Window half width / m 0.700 0 燃料盐体积 Fuel volume / m3 1.30 燃料盐质量 Fuel mass / t 2.94 总铀质量 Uranium mass / kg 150 keff 1.075 标准差Standard deviation 0.001 02
Table 3. keff with 90% abundance of 7Li
View tableView in ArticleTable 3. keff with 90% abundance of 7Li
项目 Items 数值 Value 迭代次数 Iterations 0 7Li丰度 Abundance of 7Li / % 90 7Li配比 Proportion of 7Li 0.585 0 6Li配比 Proportion of 6Li 0.065 0 keff 0.074 标准差Standard deviation 0.000 07
Table 4. keff with different abundances of 7Li
View tableView in ArticleTable 4. keff with different abundances of 7Li
迭代次数 Iterations 迭代系数 Iterative parameter 7Li丰度Abundance of 7Li / % 7Li配比 Proportion of 7Li 6Li配比 Proportion of 6Li keff 标准差Standard deviation 1 0.962 000 96.200 0 0.625 200 0.024 800 0.120 0.000 12 2 0.985 410 98.541 0 0.640 500 0.009 500 0.203 0.000 21 3 0.994 430 99.443 0 0.646 400 0.003 600 0.344 0.000 42 4 0.997 870 99.787 0 0.648 600 0.001 400 0.571 0.000 65 5 0.999 190 99.919 0 0.649 500 0.000 500 0.800 0.000 88 6 0.999 690 99.969 0 0.649 800 0.000 200 0.948 0.001 00 7 0.999 880 99.988 0 0.649 920 0.000 077 1.022 0.000 98 8 0.999 810 99.981 0 0.649 880 0.000 125 0.992 0.001 04 9 0.999 850 99.985 0 0.649 930 0.000 095 1.009 0.000 97 10 0.999 840 99.984 0 0.649 890 0.000 107 1.004 0.001 00 11 0.999 825 99.982 5 0.649 886 0.000 114 0.999 0.001 00 12 0.999 832 99.983 2 0.649 891 0.000 109 1.001 0.001 00 13 0.999 829 99.982 9 0.649 999 0.000 111 1.000 0.001 00
Table 5. The relationship between abundance variation of 7Li and reactivity coefficien
View tableView in ArticleTable 5. The relationship between abundance variation of 7Li and reactivity coefficien
7Li丰度区间
Abundance range of 7Li
7Li丰度变化 / 0.01%
Abundance change value of 7Li / 0.01%
反应性变化值 / 10-5
Reactivity change value of 7Li / 10-5
平均7Li丰度变化0.01%的反应性变化值 / 10-5
Reactivity change value corresponding to an average 7Li abundance change of 0.01% / 10-5
计算不确定度
Calculate uncertainty / %
0.900 000~0.960 000 618.00 51 981 84 0.02 0.962 000~0.985 000 236.08 33 682 143 0.03 0.985 000~0.994 000 90.18 20 225 224 0.06 0.994 000~0.998 000 34.45 11 578 336 0.11 0.998 000~0.999 000 13.16 5 021 382 0.15 0.999 200~0.999 700 5.03 1 955 389 0.19 0.999 700~0.999 800 1.19 465 392 0.20 0.999 810~0.999 830 0.17 75 434 0.20 0.999 825~0.999 828 0.03 13 515 0.20 0.999 828~0.999 836 0.08 39 471 0.20 0.999 800~0.999 900 0.45 168 370 0.20 0.999 900~1.000 000 1.19 486 410 0.20
Tools
Get Citation
Copy Citation Text
Zhen YANG, Zhimin DAI, Yang ZOU, Yongkui YAO. Nuclear safety analysis of molten salt reactor criticality with changes in 7Li abundance[J]. NUCLEAR TECHNIQUES, 2024, 47(12): 120603
Paper Information
Category: NUCLEAR ENERGY SCIENCE AND ENGINEERING
Received: Jul. 15, 2024
Accepted: --
Published Online: Jan. 15, 2025
The Author Email: DAI Zhimin (DAIZhimin)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20