Evaluation of PWR pressure vessel fast neutron fluence benchmarks from NUREG/CR-6115 with ares transport code
An accurate evaluation of PWR pressure vessel fast neutron fluence is essential to ensure pressure vessel integrity over the design lifetime. The discrete ordinates method is one of the main methods to treat such problems. In this paper, evaluations have been performed for three PWR benchma...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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VINCA Institute of Nuclear Sciences
2017-01-01
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| Series: | Nuclear Technology and Radiation Protection |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-3994/2017/1451-39941703204Z.pdf |
| _version_ | 1819112247066099712 |
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| author | Zhang Liang Zhang Bin Liu Cong Chen Yixue |
| author_facet | Zhang Liang Zhang Bin Liu Cong Chen Yixue |
| author_sort | Zhang Liang |
| collection | DOAJ |
| description | An accurate evaluation of PWR pressure vessel fast neutron fluence is
essential to ensure pressure vessel integrity over the design lifetime. The
discrete ordinates method is one of the main methods to treat such problems.
In this paper, evaluations have been performed for three PWR benchmarks
described in NUREG/CR-6115 using ARES transport code. The calculated results
were compared to the reference values and a satisfactory agreement was
obtained. In addition, the effects of SN numeric and source distribution
modeling for pressure vessel fast neutron fluence calculation are
investigated. Based on the fine enough grids adopted, the different spatial
and angular discretization introduces derivations less than 3 %, and fix-up
for negative scattering source causes no noticeable effects when calculating
pressure vessel fast neutron fluence. However, the discrepancy of
assembly-wise and pin-wise source modeling for peripheral assemblies reaches
~20 %, which indicates that pin-wise modeling for peripheral assemblies is
essential. These results provide guidelines for pressure vessel fast neutron
fluence calculation and demonstrate that the ARES transport code is capable
of performing neutron transport calculations for evaluating PWR pressure
vessel fast neutron fluence. |
| first_indexed | 2024-12-22T04:10:28Z |
| format | Article |
| id | doaj.art-6907e5e6b7fd43abbd599543f51f48bb |
| institution | Directory Open Access Journal |
| issn | 1451-3994 1452-8185 |
| language | English |
| last_indexed | 2024-12-22T04:10:28Z |
| publishDate | 2017-01-01 |
| publisher | VINCA Institute of Nuclear Sciences |
| record_format | Article |
| series | Nuclear Technology and Radiation Protection |
| spelling | doaj.art-6907e5e6b7fd43abbd599543f51f48bb2022-12-21T18:39:32ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39941452-81852017-01-0132320421010.2298/NTRP1703204Z1451-39941703204ZEvaluation of PWR pressure vessel fast neutron fluence benchmarks from NUREG/CR-6115 with ares transport codeZhang Liang0Zhang Bin1Liu Cong2Chen Yixue3North China Electric Power University, School of Nuclear Science and Engineering, Beijing, ChinaNorth China Electric Power University, School of Nuclear Science and Engineering, Beijing, ChinaNorth China Electric Power University, School of Nuclear Science and Engineering, Beijing, ChinaNorth China Electric Power University, School of Nuclear Science and Engineering, Beijing, ChinaAn accurate evaluation of PWR pressure vessel fast neutron fluence is essential to ensure pressure vessel integrity over the design lifetime. The discrete ordinates method is one of the main methods to treat such problems. In this paper, evaluations have been performed for three PWR benchmarks described in NUREG/CR-6115 using ARES transport code. The calculated results were compared to the reference values and a satisfactory agreement was obtained. In addition, the effects of SN numeric and source distribution modeling for pressure vessel fast neutron fluence calculation are investigated. Based on the fine enough grids adopted, the different spatial and angular discretization introduces derivations less than 3 %, and fix-up for negative scattering source causes no noticeable effects when calculating pressure vessel fast neutron fluence. However, the discrepancy of assembly-wise and pin-wise source modeling for peripheral assemblies reaches ~20 %, which indicates that pin-wise modeling for peripheral assemblies is essential. These results provide guidelines for pressure vessel fast neutron fluence calculation and demonstrate that the ARES transport code is capable of performing neutron transport calculations for evaluating PWR pressure vessel fast neutron fluence.http://www.doiserbia.nb.rs/img/doi/1451-3994/2017/1451-39941703204Z.pdfdiscrete ordinateNUREG/CR-6115reactor pressure vesselfast neutron fluencetransport calculation |
| spellingShingle | Zhang Liang Zhang Bin Liu Cong Chen Yixue Evaluation of PWR pressure vessel fast neutron fluence benchmarks from NUREG/CR-6115 with ares transport code Nuclear Technology and Radiation Protection discrete ordinate NUREG/CR-6115 reactor pressure vessel fast neutron fluence transport calculation |
| title | Evaluation of PWR pressure vessel fast neutron fluence benchmarks from NUREG/CR-6115 with ares transport code |
| title_full | Evaluation of PWR pressure vessel fast neutron fluence benchmarks from NUREG/CR-6115 with ares transport code |
| title_fullStr | Evaluation of PWR pressure vessel fast neutron fluence benchmarks from NUREG/CR-6115 with ares transport code |
| title_full_unstemmed | Evaluation of PWR pressure vessel fast neutron fluence benchmarks from NUREG/CR-6115 with ares transport code |
| title_short | Evaluation of PWR pressure vessel fast neutron fluence benchmarks from NUREG/CR-6115 with ares transport code |
| title_sort | evaluation of pwr pressure vessel fast neutron fluence benchmarks from nureg cr 6115 with ares transport code |
| topic | discrete ordinate NUREG/CR-6115 reactor pressure vessel fast neutron fluence transport calculation |
| url | http://www.doiserbia.nb.rs/img/doi/1451-3994/2017/1451-39941703204Z.pdf |
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