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)
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ftdoajarticles:oai:doaj.org/article:1c49fa0be15f49058e740293920bcba6 2023-05-15T13:11:59+02:00 Small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity Vadim Naumov Sergey Gusak Andrey Naumov 2018-11-01T00:00:00Z https://doi.org/10.3897/nucet.4.30677 https://doaj.org/article/1c49fa0be15f49058e740293920bcba6 EN eng National Research Nuclear University (MEPhI) https://nucet.pensoft.net/article/30677/download/pdf/ https://nucet.pensoft.net/article/30677/download/xml/ https://nucet.pensoft.net/article/30677/ https://doaj.org/toc/2452-3038 doi:10.3897/nucet.4.30677 2452-3038 https://doaj.org/article/1c49fa0be15f49058e740293920bcba6 Nuclear Energy and Technology, Vol 4, Iss 2, Pp 119-125 (2018) Nuclear engineering. Atomic power TK9001-9401 article 2018 ftdoajarticles https://doi.org/10.3897/nucet.4.30677 2022-12-31T08:52:20Z 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 Directory of Open Access Journals: DOAJ Articles Arctic Nuclear Energy and Technology 4 2 119 125 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Nuclear engineering. Atomic power TK9001-9401 |
spellingShingle |
Nuclear engineering. Atomic power TK9001-9401 Vadim Naumov Sergey Gusak Andrey Naumov Small nuclear power plants for power supply in arctic regions: assessment of spent nuclear fuel radioactivity |
topic_facet |
Nuclear engineering. Atomic power TK9001-9401 |
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 |
Vadim Naumov Sergey Gusak Andrey Naumov |
author_facet |
Vadim Naumov Sergey Gusak Andrey Naumov |
author_sort |
Vadim Naumov |
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) |
publishDate |
2018 |
url |
https://doi.org/10.3897/nucet.4.30677 https://doaj.org/article/1c49fa0be15f49058e740293920bcba6 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic |
genre_facet |
albedo Arctic |
op_source |
Nuclear Energy and Technology, Vol 4, Iss 2, Pp 119-125 (2018) |
op_relation |
https://nucet.pensoft.net/article/30677/download/pdf/ https://nucet.pensoft.net/article/30677/download/xml/ https://nucet.pensoft.net/article/30677/ https://doaj.org/toc/2452-3038 doi:10.3897/nucet.4.30677 2452-3038 https://doaj.org/article/1c49fa0be15f49058e740293920bcba6 |
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_ |
1766249876154220544 |