High Power Laser and Particle Beams, Volume. 34, Issue 2, 026017(2022)
Validation of a nuclear code system for prismatic high temperature gas-cooled reactors based on the Very High Temperature Reactor Critical Assembly benchmark
Figures & Tables(10)
Table 1.
k eff results of different density adjustment casesView tableView in ArticleTable 1.
k eff results of different density adjustment casesdensity adjustment factor keff standard deviation $\Delta {k}_{ {\rm{eff} }\text{} }$ original 1.00871 0.00026 0 0.5 1.00765 0.00027 −106 0.6 1.00877 0.00024 6 0.65 1.01031 0.00024 160
Table 2.
k eff of different energy group structure casesView tableView in ArticleTable 2.
k eff of different energy group structure casescase keff standard deviation $\Delta {k}_{{\rm{eff}}}$ CE 1.00927 0.00011 MG-4g 1.02818 0.00009 1891 MG-8g 1.02476 0.00011 1549 MG-16g 1.02391 0.00011 1464 MG-25g 1.01844 0.00010 917 MG-40g 1.01786 0.00011 859 MG-70g 1.01661 0.00009 734
Table 3. Power discrepancy of different zoning cases
View tableView in ArticleTable 3. Power discrepancy of different zoning cases
No. relative error/% case 1 case 2 1 0.09 0.10 2 −0.53 −0.54 3 1.40 0.08 4 0.09 0.47 5 −0.20 −0.04 6 0.52 0.38 7 −0.34 −0.05 8 −0.34 −0.12 9 0.18 0.07 10 −0.38 −0.18 11 −0.48 −0.33 12 0.20 0.12 13 0.19 0.16
Table 4.
k effof different zoning cases View tableView in ArticleTable 4.
k effof different zoning cases keff standard deviation case 1 1.00843 0.00010 case 2 1.00951 0.00008
Table 5.
k eff of different temperature casesView tableView in ArticleTable 5.
k eff of different temperature casesT/K keff benchmark MVP-II RMC-CE SaraGR 298.65 1.0115±0.0032 1.00706±0.00006 1.00927±0.00011 1.00981 344.35 1.0046±0.0033 0.99998±0.00006 1.00263±0.00010 1.00219 374.05 0.9994±0.0035 0.99527±0.00006 0.99778±0.00011 0.99713 423.65 0.9906±0.0035 0.98700±0.00006 0.98925±0.00010 0.98823 472.75 0.9820±0.0037 0.97893±0.00006 0.98140±0.00011 0.97957
Table 6. Results with interpolation of cross sections
View tableView in ArticleTable 6. Results with interpolation of cross sections
T/K keff $\Delta {k}_{{\rm{eff}}}$ RMC-CE SaraGR-Interp 298.65 1.00927±0.00011 1.00982 55 344.35 1.00263±0.00010 1.00138 −125 374.05 0.99778±0.00011 0.99642 −136 400.00 0.99321±0.00011 0.99234 −87 423.65 0.98925±0.00010 0.98787 −138 472.75 0.98140±0.00011 0.97930 −210 500.00 0.97677±0.00011 0.97491 −186
Table 7. Isothermal reactivity coefficient
View tableView in ArticleTable 7. Isothermal reactivity coefficient
case $ {\mathrm{\alpha }}_{\mathrm{T}} $ benchmark −17.1 MVP-II −16.4 RMC-CE −16.2 SaraGR −17.6 SaraGR-Interp −17.7
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Yuan Yuan, Chenglong Zhang, Guoming Liu, Shuhong Du, Xiaodong Huo, Zhiyuan Feng, Xia’nan Du. Validation of a nuclear code system for prismatic high temperature gas-cooled reactors based on the Very High Temperature Reactor Critical Assembly benchmark[J]. High Power Laser and Particle Beams, 2022, 34(2): 026017
Paper Information
Category: Monte Carlo Methods and Applications
Received: Aug. 23, 2021
Accepted: --
Published Online: Jan. 26, 2022
The Author Email: Liu Guoming (liugma@cnpe.cc)
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