Small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity
The purpose of the present study is the investigation of mass composition of long-lived radionuclides accumulated in the fuel cycle of small nuclear power plants (SNPP) as well as long-lived radioactivity of spent fuel of such reactors. Analysis was performed of the published data on the projects of...
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National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
2018
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Online Access: | https://zenodo.org/record/2535188 https://doi.org/10.3897/nucet.4.30677 |
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ftzenodo:oai:zenodo.org:2535188 2023-06-06T11:42:53+02:00 Small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity Naumov, Vadim Gusak, Sergey Naumov, Andrey 2018-11-26 https://zenodo.org/record/2535188 https://doi.org/10.3897/nucet.4.30677 unknown National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) https://zenodo.org/record/2535188 https://doi.org/10.3897/nucet.4.30677 oai:zenodo.org:2535188 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode Nuclear Energy and Technology 4((2)) 119-125 Arctic regions of Russia small nuclear power plants reactors spent nuclear fuel fuel cycle radioactivity info:eu-repo/semantics/article publication-article 2018 ftzenodo https://doi.org/10.3897/nucet.4.30677 2023-04-13T21:45:09Z The purpose of the present study is the investigation of mass composition of long-lived radionuclides accumulated in the fuel cycle of small nuclear power plants (SNPP) as well as long-lived radioactivity of spent fuel of such reactors. Analysis was performed of the published data on the projects of SNPP with pressurized water-cooled reactors (LWR) and reactors cooled with Pb-Bi eutectics (SVBR). Information was obtained on the parameters of fuel cycle, design and materials of reactor cores, thermodynamic characteristics of coolants of the primary cooling circuit for reactor facilities of different types. Mathematical models of fuel cycles of the cores of reactors of ABV, KLT-40S, RITM-200M, UNITERM, SVBR-10 and SVBR-100 types were developed. The KRATER software was applied for mathematical modeling of the fuel cycles where spatial-energy distribution of neutron flux density is determined within multi-group diffusion approximation and heterogeneity of reactor cores is taken into account using albedo method within the reactor cell model. Calculation studies of kinetics of burnup of isotopes in the initial fuel load (235U, 238U) and accumulation of long-lived fission products (85Kr, 90Sr, 137Cs, 151Sm) and actinoids (238,239,240,241,242Pu, 236U, 237Np, 241Am, 244Cm) in the cores of the examined SNPP reactor facilities were performed. The obtained information allowed estimating radiation characteristics of irradiated nuclear fuel and implementing comparison of long-lived radioactivity of spent reactor fuel of the SNPPs under study and of their prototypes (nuclear propulsion reactors). The comparison performed allowed formulating the conclusion on the possibility in principle (from the viewpoint of radiation safety) of application of SNF handling technology used in prototype reactors in the transportation and technological process layouts of handling SNF of SNPP reactors. Article in Journal/Newspaper albedo Arctic Zenodo Arctic Nuclear Energy and Technology 4 2 119 125 |
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unknown |
topic |
Arctic regions of Russia small nuclear power plants reactors spent nuclear fuel fuel cycle radioactivity |
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Arctic regions of Russia small nuclear power plants reactors spent nuclear fuel fuel cycle radioactivity Naumov, Vadim Gusak, Sergey Naumov, Andrey Small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity |
topic_facet |
Arctic regions of Russia small nuclear power plants reactors spent nuclear fuel fuel cycle radioactivity |
description |
The purpose of the present study is the investigation of mass composition of long-lived radionuclides accumulated in the fuel cycle of small nuclear power plants (SNPP) as well as long-lived radioactivity of spent fuel of such reactors. Analysis was performed of the published data on the projects of SNPP with pressurized water-cooled reactors (LWR) and reactors cooled with Pb-Bi eutectics (SVBR). Information was obtained on the parameters of fuel cycle, design and materials of reactor cores, thermodynamic characteristics of coolants of the primary cooling circuit for reactor facilities of different types. Mathematical models of fuel cycles of the cores of reactors of ABV, KLT-40S, RITM-200M, UNITERM, SVBR-10 and SVBR-100 types were developed. The KRATER software was applied for mathematical modeling of the fuel cycles where spatial-energy distribution of neutron flux density is determined within multi-group diffusion approximation and heterogeneity of reactor cores is taken into account using albedo method within the reactor cell model. Calculation studies of kinetics of burnup of isotopes in the initial fuel load (235U, 238U) and accumulation of long-lived fission products (85Kr, 90Sr, 137Cs, 151Sm) and actinoids (238,239,240,241,242Pu, 236U, 237Np, 241Am, 244Cm) in the cores of the examined SNPP reactor facilities were performed. The obtained information allowed estimating radiation characteristics of irradiated nuclear fuel and implementing comparison of long-lived radioactivity of spent reactor fuel of the SNPPs under study and of their prototypes (nuclear propulsion reactors). The comparison performed allowed formulating the conclusion on the possibility in principle (from the viewpoint of radiation safety) of application of SNF handling technology used in prototype reactors in the transportation and technological process layouts of handling SNF of SNPP reactors. |
format |
Article in Journal/Newspaper |
author |
Naumov, Vadim Gusak, Sergey Naumov, Andrey |
author_facet |
Naumov, Vadim Gusak, Sergey Naumov, Andrey |
author_sort |
Naumov, Vadim |
title |
Small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity |
title_short |
Small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity |
title_full |
Small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity |
title_fullStr |
Small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity |
title_full_unstemmed |
Small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity |
title_sort |
small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity |
publisher |
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) |
publishDate |
2018 |
url |
https://zenodo.org/record/2535188 https://doi.org/10.3897/nucet.4.30677 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic |
genre_facet |
albedo Arctic |
op_source |
Nuclear Energy and Technology 4((2)) 119-125 |
op_relation |
https://zenodo.org/record/2535188 https://doi.org/10.3897/nucet.4.30677 oai:zenodo.org:2535188 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.3897/nucet.4.30677 |
container_title |
Nuclear Energy and Technology |
container_volume |
4 |
container_issue |
2 |
container_start_page |
119 |
op_container_end_page |
125 |
_version_ |
1767952023109500928 |