Precise calculation of neutron-capture reactions contribution in energy release for different types of VVER-1000 fuel assemblies
Precise calculation of energy release in a nuclear reactor is necessary to obtain the correct spatial power distribution and predict characteristics of burned nuclear fuel. In this work, previously developed method for calculation neutron-capture reactions – capture component – contribution in effec...
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2017-01-01
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Series: | EPJ Web of Conferences |
Online Access: | https://doi.org/10.1051/epjconf/201715307007 |
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doaj-919d8d5ffd8b4aa690182727d5685b5a2021-08-02T04:03:15ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011530700710.1051/epjconf/201715307007epjconf_icrs2017_07007Precise calculation of neutron-capture reactions contribution in energy release for different types of VVER-1000 fuel assembliesTikhomirov GeorgyBahdanovich RynatPham PhuPrecise calculation of energy release in a nuclear reactor is necessary to obtain the correct spatial power distribution and predict characteristics of burned nuclear fuel. In this work, previously developed method for calculation neutron-capture reactions – capture component – contribution in effective energy release in a fuel core of nuclear reactor is discussed. The method was improved and implemented to the different models of VVER-1000 reactor developed for MCU 5 and MCNP 4 computer codes. Different models of equivalent cell and fuel assembly in the beginning of fuel cycle were calculated. These models differ by the geometry, fuel enrichment and presence of burnable absorbers. It is shown, that capture component depends on fuel enrichment and presence of burnable absorbers. Its value varies for different types of hot fuel assemblies from 3.35% to 3.85% of effective energy release. Average capture component contribution in effective energy release for typical serial fresh fuel of VVER-1000 is 3.5%, which is 7 MeV/fission. The method will be used in future to estimate the dependency of capture energy on fuel density, burn-up, etc.https://doi.org/10.1051/epjconf/201715307007 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tikhomirov Georgy Bahdanovich Rynat Pham Phu |
spellingShingle |
Tikhomirov Georgy Bahdanovich Rynat Pham Phu Precise calculation of neutron-capture reactions contribution in energy release for different types of VVER-1000 fuel assemblies EPJ Web of Conferences |
author_facet |
Tikhomirov Georgy Bahdanovich Rynat Pham Phu |
author_sort |
Tikhomirov Georgy |
title |
Precise calculation of neutron-capture reactions contribution in energy release for different types of VVER-1000 fuel assemblies |
title_short |
Precise calculation of neutron-capture reactions contribution in energy release for different types of VVER-1000 fuel assemblies |
title_full |
Precise calculation of neutron-capture reactions contribution in energy release for different types of VVER-1000 fuel assemblies |
title_fullStr |
Precise calculation of neutron-capture reactions contribution in energy release for different types of VVER-1000 fuel assemblies |
title_full_unstemmed |
Precise calculation of neutron-capture reactions contribution in energy release for different types of VVER-1000 fuel assemblies |
title_sort |
precise calculation of neutron-capture reactions contribution in energy release for different types of vver-1000 fuel assemblies |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2017-01-01 |
description |
Precise calculation of energy release in a nuclear reactor is necessary to obtain the correct spatial power distribution and predict characteristics of burned nuclear fuel. In this work, previously developed method for calculation neutron-capture reactions – capture component – contribution in effective energy release in a fuel core of nuclear reactor is discussed. The method was improved and implemented to the different models of VVER-1000 reactor developed for MCU 5 and MCNP 4 computer codes. Different models of equivalent cell and fuel assembly in the beginning of fuel cycle were calculated. These models differ by the geometry, fuel enrichment and presence of burnable absorbers. It is shown, that capture component depends on fuel enrichment and presence of burnable absorbers. Its value varies for different types of hot fuel assemblies from 3.35% to 3.85% of effective energy release. Average capture component contribution in effective energy release for typical serial fresh fuel of VVER-1000 is 3.5%, which is 7 MeV/fission. The method will be used in future to estimate the dependency of capture energy on fuel density, burn-up, etc. |
url |
https://doi.org/10.1051/epjconf/201715307007 |
work_keys_str_mv |
AT tikhomirovgeorgy precisecalculationofneutroncapturereactionscontributioninenergyreleasefordifferenttypesofvver1000fuelassemblies AT bahdanovichrynat precisecalculationofneutroncapturereactionscontributioninenergyreleasefordifferenttypesofvver1000fuelassemblies AT phamphu precisecalculationofneutroncapturereactionscontributioninenergyreleasefordifferenttypesofvver1000fuelassemblies |
_version_ |
1721242839824728064 |