Research on the Influence of Negative KERMA Factors on the Power Distribution of a Lead-Cooled Fast Reactor
Abstract
:1. Introduction
2. Heating Calculation Using KERMA Factor
3. Nuclides with Negative KERMA Factors in ENDF/B-VII.1
4. Numerical Verification and Analysis
4.1. Introduction for RBEC-M Benchmark
4.2. The Neutron Power Distribution Comparison
4.3. The Coupled Neutron–Photon Calculation Comparison
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Nuclide Name | |||
---|---|---|---|
33S | 93Nb | 145Nd | 174Hf |
36S | 92Mo | 147Nd | 176Hf |
92Zr | 94Mo | 147Sm | 177Hf |
93Zr | 96Mo | 149Sm | 178Hf |
94Zr | 97Mo | 151Sm | 179Hf |
95Zr | 98Mo | 155Gd | 180Hf |
96Zr | 133Cs | 165Ho | 209Bi |
Nuclide | Core 1 | Core 2 | Core 3 | Axial Blanket 1 | Axial Blanket 2 | Axial Blanket 3 |
---|---|---|---|---|---|---|
TRU feed | ||||||
Pu238 | 1.33524 × 10−5 | 1.58166 × 10−5 | 2.18910 × 10−5 | |||
Pu239 | 6.07226 × 10−4 | 7.19290 × 10−4 | 9.95539 × 10−4 | |||
Pu240 | 2.43311 × 10−4 | 2.88214 × 10−4 | 3.98905 × 10−4 | |||
Pu241 | 8.31945 × 10−5 | 9.85480 × 10−5 | 1.36396 × 10−4 | |||
Pu242 | 4.92603 × 10−5 | 5.83513 × 10−5 | 8.07615 × 10−5 | |||
Am241 | 8.08633 × 10−6 | 9.57866 × 10−6 | 1.32574 × 10−5 | |||
Uranium Feed | ||||||
U235 | 6.42536 × 10−6 | 7.61116 × 10−6 | 1.05343 × 10−5 | 7.47095 × 10−6 | 8.84971 × 10−6 | 1.22485 × 10−5 |
U238 | 6.35962 × 10−3 | 7.53328 × 10−3 | 1.04265 × 10−2 | 7.36921 × 10−3 | 8.72919 × 10−3 | 1.20817 × 10−2 |
N Content | ||||||
N-14 | 4.96797 × 10−4 | 5.88481 × 10−4 | 8.14492 × 10−4 | 4.97216 × 10−4 | 5.88976 × 10−4 | 8.15178 × 10−4 |
N-15 | 6.87368 × 10−3 | 8.14221 × 10−3 | 1.12693 × 10−3 | 6.87947 × 10−3 | 8.14907 × 10−3 | 1.12788 × 10−2 |
Coolant | ||||||
Bi209 | 1.04654 × 10−2 | 9.59466 × 10−3 | 7.46809 × 10−3 | 1.04654 × 10−2 | 9.59466 × 10−3 | 7.46809 × 10−3 |
Pb206 | 2.06859 × 10−3 | 1.89648 × 10−3 | 1.47615 × 10−3 | 2.06859 × 10−3 | 1.89648 × 10−3 | 1.47615 × 10−3 |
Pb207 | 1.89696 × 10−3 | 1.73913 × 10−3 | 1.35367 × 10−3 | 1.89696 × 10−3 | 1.73913 × 10−3 | 1.35367 × 10−3 |
Pb208 | 4.49772 × 10−3 | 4.12351 × 10−3 | 3.20957 × 10−3 | 4.49772 × 10−3 | 4.12351 × 10−3 | 3.20957 × 10−3 |
Structure | ||||||
C | 7.25829 × 10−5 | 7.75886 × 10−5 | 8.69743 × 10−5 | 7.25829 × 10−5 | 7.75886 × 10−5 | 8.69743 × 10−5 |
Si | 2.23105 × 10−4 | 2.38491 × 10−4 | 2.67341 × 10−4 | 2.23105 × 10−4 | 2.38490 × 10−4 | 2.97341 × 10−4 |
V | 3.74360 × 10−5 | 4.00178 × 10−5 | 4.48587 × 10−5 | 3.74360 × 10−5 | 4.00178 × 10−5 | 4.48587 × 10−5 |
Cr | 1.15270 × 10−3 | 1.23220 × 10−3 | 1.38125 × 10−3 | 1.15270 × 10−3 | 1.23220 × 10−3 | 1.38125 × 10−3 |
Mn | 6.44665 × 10−5 | 6.89124 × 10−5 | 7.72486 × 10−5 | 6.44665 × 10−5 | 6.89124 × 10−5 | 7.72486 × 10−5 |
Fe | 8.22862 × 10−3 | 8.79611 × 10−3 | 9.86016 × 10−3 | 8.22862 × 10−3 | 8.79611 × 10−3 | 9.86016 × 10−3 |
Ni | 6.03452 × 10−5 | 6.45069 × 10−5 | 7.23102 × 10−5 | 6.03452 × 10−5 | 6.45069 × 10−5 | 7.23102 × 10−5 |
Nb | 1.75942 × 10−5 | 1.88076 × 10−5 | 2.10827 × 10−5 | 1.75942 × 10−5 | 1.88076 × 10−5 | 2.10827 × 10−5 |
Mo | 4.25946 × 10−5 | 4.55322 × 10−5 | 5.10401 × 10−5 | 4.25946 × 10−5 | 4.55322 × 10−5 | 5.10401 × 10−5 |
W | 1.92638 × 10−5 | 2.05924 × 10−5 | 2.30834 × 10−5 | 1.92638 × 10−5 | 2.05924 × 10−5 | 2.30834 × 10−5 |
Lateral Blanket | Top of Fuel Assembly | Gas Plenum | Top of LB Assembly | Downcomer | Chimney | |
---|---|---|---|---|---|---|
Uranium Feed | ||||||
U235 | 1.05171 × 10−5 | |||||
U238 | 1.03738 × 10−2 | |||||
N | Content | |||||
N-14 | 6.99943 × 10−4 | |||||
N-15 | 9.68440 × 10−3 | |||||
Coolant | ||||||
Bi209 | 9.46070 × 10−3 | 9.52768 × 10−3 | 9.52768 × 10−3 | 9.46070 × 10−3 | 1.50701 × 10−2 | 1.66609 × 10−2 |
Pb206 | 1.87001 × 10−3 | 1.88324 × 10−3 | 1.88324 × 10−3 | 1.87001 × 10−3 | 2.97877 × 10−3 | 3.29320 × 10−3 |
Pb207 | 1.71485 × 10−3 | 1.72699 × 10−3 | 1.72699 × 10−3 | 1.71485 × 10−3 | 2.73162 × 10−3 | 3.01995 × 10−3 |
Pb208 | 4.06593 × 10−3 | 4.09472 × 10−3 | 4.09472 × 10−3 | 4.06593 × 10−3 | 6.47671 × 10−3 | 7.16036 × 10−3 |
Structure | ||||||
C | 5.88172 × 10−5 | 7.75886 × 10−5 | 2.22000 × 10−4 | 5.88172 × 10−5 | 6.25714 × 10−5 | 3.12857 × 10−6 |
Si | 1.80792 × 10−4 | 2.38491 × 10−4 | 2.38491 × 10−4 | 1.80792 × 10−4 | 1.92332 × 10−4 | 9.61659 × 10−6 |
V | 3.03361 × 10−5 | 4.00178 × 10−5 | 4.00178 × 10−5 | 3.03361 × 10−5 | 3.22724 × 10−5 | 1.61362 × 10−6 |
Cr | 9.34084 × 10−4 | 1.23220 × 10−3 | 1.23220 × 10−3 | 9.34084 × 10−4 | 9.93706 × 10−4 | 4.96853 × 10−5 |
Mn | 5.22401 × 10−5 | 6.89124 × 10−5 | 6.89124 × 10−5 | 5.22401 × 10−5 | 5.55745 × 10−5 | 2.77873 × 10−6 |
Fe | 6.66802 × 10−3 | 8.79611 × 10−3 | 8.79611 × 10−3 | 6.66802 × 10−3 | 7.09364 × 10−3 | 3.54682 × 10−4 |
Ni | 4.89004 × 10−5 | 6.45069 × 10−5 | 6.45069 × 10−5 | 4.89004 × 10−5 | 5.20217 × 10−5 | 2.60109 × 10−6 |
Nb | 1.42574 × 10−5 | 1.88076 × 10−5 | 1.88076 × 10−5 | 1.42574 × 10−5 | 1.51674 × 10−5 | 7.58370 × 10−7 |
Mo | 3.45163 × 10−5 | 4.55322 × 10−5 | 4.55322 × 10−5 | 3.45163 × 10−5 | 3.67195 × 10−5 | 1.83598 × 10−6 |
W | 1.56104 × 10−5 | 2.05924 × 10−5 | 2.05924 × 10−5 | 1.56104 × 10−5 | 1.66068 × 10−5 | 8.30338 × 10−7 |
209Bi | 93Nb | 92Mo | 94Mo | 96Mo | 97Mo | 98Mo |
Library | keff |
---|---|
ENDF/B-VII.1 (case1) | 1.00960 ± 0.00004 |
ENDF/B-VII.1 + CENDL3.2 (case 2) | 1.00613 ± 0.00003 |
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Jia, G.; Ma, X.; Zhang, T.; Hu, K. Research on the Influence of Negative KERMA Factors on the Power Distribution of a Lead-Cooled Fast Reactor. J. Nucl. Eng. 2024, 5, 1-12. https://doi.org/10.3390/jne5010001
Jia G, Ma X, Zhang T, Hu K. Research on the Influence of Negative KERMA Factors on the Power Distribution of a Lead-Cooled Fast Reactor. Journal of Nuclear Engineering. 2024; 5(1):1-12. https://doi.org/10.3390/jne5010001
Chicago/Turabian StyleJia, Guanqun, Xubo Ma, Teng Zhang, and Kui Hu. 2024. "Research on the Influence of Negative KERMA Factors on the Power Distribution of a Lead-Cooled Fast Reactor" Journal of Nuclear Engineering 5, no. 1: 1-12. https://doi.org/10.3390/jne5010001