Modelling of the Radiological Contamination of the RBMK-1500 Reactor Water Purification and Cooling System
This paper presents modelling results on the RBMK-1500 reactor water purification and cooling system (PCS) components contamination at Ignalina NPP Unit 1. The modelling was performed using a computer code LLWAA-DECOM (Tractebel Energy Engineering, Belgium), taking into consideration PCS components...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2014/293158 |
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| author | G. Poskas R. Zujus P. Poskas G. Miliauskas |
| author_facet | G. Poskas R. Zujus P. Poskas G. Miliauskas |
| author_sort | G. Poskas |
| collection | DOAJ |
| description | This paper presents modelling results on the RBMK-1500 reactor water purification and cooling system (PCS) components contamination at Ignalina NPP Unit 1. The modelling was performed using a computer code LLWAA-DECOM (Tractebel Energy Engineering, Belgium), taking into consideration PCS components characteristics, parameters of the water flowing in circuits, system work regimes, and so forth. During the modelling, results on activity of PCS subsystems and components’ deposits and nuclide composition of deposits at the moment of the final shutdown of the reactor, as well as activity decay of the most contaminated PCS components’ deposits and dose rates after the final shutdown of the reactor, were obtained. Significant difference of contamination levels was revealed among PCS subsystems and subsystems components. The subsystem of nonpurified water is the most contaminated in PCS, and the activity of the least contaminated component in this subsystem is only 1.42% compared to the activity of the most contaminated component. The most contaminated and the least contaminated components of the purified water subsystem comprise 28.33% and 0.86% of activity, respectively, compared to the activity of the most contaminated PCS component. |
| format | Article |
| id | doaj-art-865b887c842b4898afec922a0e40ca76 |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-865b887c842b4898afec922a0e40ca762025-08-20T03:38:04ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832014-01-01201410.1155/2014/293158293158Modelling of the Radiological Contamination of the RBMK-1500 Reactor Water Purification and Cooling SystemG. Poskas0R. Zujus1P. Poskas2G. Miliauskas3Nuclear Engineering Laboratory, Lithuanian Energy Institute, 3 Breslaujos Street, 44403 Kaunas, LithuaniaNuclear Engineering Laboratory, Lithuanian Energy Institute, 3 Breslaujos Street, 44403 Kaunas, LithuaniaNuclear Engineering Laboratory, Lithuanian Energy Institute, 3 Breslaujos Street, 44403 Kaunas, LithuaniaDepartment of Thermal and Nuclear Energy, Kaunas University of Technology, 73 K. Donelaicio Street, 44029 Kaunas, LithuaniaThis paper presents modelling results on the RBMK-1500 reactor water purification and cooling system (PCS) components contamination at Ignalina NPP Unit 1. The modelling was performed using a computer code LLWAA-DECOM (Tractebel Energy Engineering, Belgium), taking into consideration PCS components characteristics, parameters of the water flowing in circuits, system work regimes, and so forth. During the modelling, results on activity of PCS subsystems and components’ deposits and nuclide composition of deposits at the moment of the final shutdown of the reactor, as well as activity decay of the most contaminated PCS components’ deposits and dose rates after the final shutdown of the reactor, were obtained. Significant difference of contamination levels was revealed among PCS subsystems and subsystems components. The subsystem of nonpurified water is the most contaminated in PCS, and the activity of the least contaminated component in this subsystem is only 1.42% compared to the activity of the most contaminated component. The most contaminated and the least contaminated components of the purified water subsystem comprise 28.33% and 0.86% of activity, respectively, compared to the activity of the most contaminated PCS component.http://dx.doi.org/10.1155/2014/293158 |
| spellingShingle | G. Poskas R. Zujus P. Poskas G. Miliauskas Modelling of the Radiological Contamination of the RBMK-1500 Reactor Water Purification and Cooling System Science and Technology of Nuclear Installations |
| title | Modelling of the Radiological Contamination of the RBMK-1500 Reactor Water Purification and Cooling System |
| title_full | Modelling of the Radiological Contamination of the RBMK-1500 Reactor Water Purification and Cooling System |
| title_fullStr | Modelling of the Radiological Contamination of the RBMK-1500 Reactor Water Purification and Cooling System |
| title_full_unstemmed | Modelling of the Radiological Contamination of the RBMK-1500 Reactor Water Purification and Cooling System |
| title_short | Modelling of the Radiological Contamination of the RBMK-1500 Reactor Water Purification and Cooling System |
| title_sort | modelling of the radiological contamination of the rbmk 1500 reactor water purification and cooling system |
| url | http://dx.doi.org/10.1155/2014/293158 |
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