TRANSIENT CALCULATIONS OF SPERT III EXPERIMENTS
Cold-startup and hot-standby reactivity accident tests conducted at the SPERT III E-core research reactor are analysed with the coupled neutron-kinetic/thermal-hydraulic code system DYN3D-ATHLET. Homogenised 2-group cross sections for DYN3D are thereby generated with the Monte Carlo neutron transpor...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | EPJ Web of Conferences |
| Subjects: | |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_07017.pdf |
| _version_ | 1831770354847055872 |
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| author | Pautz Andreas Zwermann Winfried |
| author_facet | Pautz Andreas Zwermann Winfried |
| author_sort | Pautz Andreas |
| collection | DOAJ |
| description | Cold-startup and hot-standby reactivity accident tests conducted at the SPERT III E-core research reactor are analysed with the coupled neutron-kinetic/thermal-hydraulic code system DYN3D-ATHLET. Homogenised 2-group cross sections for DYN3D are thereby generated with the Monte Carlo neutron transport code Serpent 2 in combination with the ENDF/B-VII.1 cross section library. Results in terms of maximum power, energy release, and reactivity compensation are in good agreement with the experimental values. The time-dependent contributions to the reactivity feedback are investigated for both a cold-startup test and a hot-standby test. These findings prove the suitability of the combined application of the simulation codes to predict the reactor dynamic behaviour in the event of prompt-critical and super-prompt critical transients even for small reactor cores. Furthermore, static core characteristics of the SPERT III E-core reactor at cold-startup condition are analysed with using a static DYN3D model, a detailed Serpent reference model, and a simplified Serpent model consistent with the DYN3D model. The critical control rod position and the excess reactivities of both the control rods and the transient rod obtained with the Serpent reference model are consistent with the experimental values. For the same parameters, the DYN3D model is in good agreement with the Serpent simplified model. |
| first_indexed | 2024-12-22T07:38:40Z |
| format | Article |
| id | doaj.art-cd2f61e4235f45649195df5a737fc860 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-22T07:38:40Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-cd2f61e4235f45649195df5a737fc8602022-12-21T18:33:48ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012470701710.1051/epjconf/202124707017epjconf_physor2020_07017TRANSIENT CALCULATIONS OF SPERT III EXPERIMENTSPautz Andreas0Zwermann Winfried1École polytechnique fédérale de LausanneGesellschaft für Anlagen- und Reaktorsicherheit (GRS)Cold-startup and hot-standby reactivity accident tests conducted at the SPERT III E-core research reactor are analysed with the coupled neutron-kinetic/thermal-hydraulic code system DYN3D-ATHLET. Homogenised 2-group cross sections for DYN3D are thereby generated with the Monte Carlo neutron transport code Serpent 2 in combination with the ENDF/B-VII.1 cross section library. Results in terms of maximum power, energy release, and reactivity compensation are in good agreement with the experimental values. The time-dependent contributions to the reactivity feedback are investigated for both a cold-startup test and a hot-standby test. These findings prove the suitability of the combined application of the simulation codes to predict the reactor dynamic behaviour in the event of prompt-critical and super-prompt critical transients even for small reactor cores. Furthermore, static core characteristics of the SPERT III E-core reactor at cold-startup condition are analysed with using a static DYN3D model, a detailed Serpent reference model, and a simplified Serpent model consistent with the DYN3D model. The critical control rod position and the excess reactivities of both the control rods and the transient rod obtained with the Serpent reference model are consistent with the experimental values. For the same parameters, the DYN3D model is in good agreement with the Serpent simplified model.https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_07017.pdfspert iii e-coreria analysisserpentdyn3d-athletkmacs |
| spellingShingle | Pautz Andreas Zwermann Winfried TRANSIENT CALCULATIONS OF SPERT III EXPERIMENTS EPJ Web of Conferences spert iii e-core ria analysis serpent dyn3d-athlet kmacs |
| title | TRANSIENT CALCULATIONS OF SPERT III EXPERIMENTS |
| title_full | TRANSIENT CALCULATIONS OF SPERT III EXPERIMENTS |
| title_fullStr | TRANSIENT CALCULATIONS OF SPERT III EXPERIMENTS |
| title_full_unstemmed | TRANSIENT CALCULATIONS OF SPERT III EXPERIMENTS |
| title_short | TRANSIENT CALCULATIONS OF SPERT III EXPERIMENTS |
| title_sort | transient calculations of spert iii experiments |
| topic | spert iii e-core ria analysis serpent dyn3d-athlet kmacs |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_07017.pdf |
| work_keys_str_mv | AT pautzandreas transientcalculationsofspertiiiexperiments AT zwermannwinfried transientcalculationsofspertiiiexperiments |