Radiochemical behavior of nitrogen species in high temperature water
The water radiolysis in-core at light water reactors (LWRs) produces various radicals with other ionic species/molecules and radioactive nitrogen species in the reactor coolant. Nitrogen species can exist in many different chemical forms and recirculate in water and steam, and consequently contribut...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573323002462 |
| _version_ | 1797737342764580864 |
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| author | Young-Jin Kim Geun Dong Song Seung Heon Baek Beom Kyu Kim Jin Sik Cheon Jun Hwan Kim Hee-Sang Shim Soon-Hyeok Jeon Hyunmyung Kim |
| author_facet | Young-Jin Kim Geun Dong Song Seung Heon Baek Beom Kyu Kim Jin Sik Cheon Jun Hwan Kim Hee-Sang Shim Soon-Hyeok Jeon Hyunmyung Kim |
| author_sort | Young-Jin Kim |
| collection | DOAJ |
| description | The water radiolysis in-core at light water reactors (LWRs) produces various radicals with other ionic species/molecules and radioactive nitrogen species in the reactor coolant. Nitrogen species can exist in many different chemical forms and recirculate in water and steam, and consequently contribute to what extent the environmental safety at nuclear power plants. Therefore, a clear understanding of formation kinetics and chemical behaviors of nitrogen species under irradiation is crucial for better insight into the characteristics of major radioactive species released to the main steam or relevant coolant systems and eventually development of advanced processes/methodologies to enhance the environmental safety at nuclear power plants. This paper thus focuses on basic principles on electrochemical interaction kinetics of radiolytic molecules and various nitrogen species in high temperature water, fundamental approaches for calculating thermodynamic values to predict their stability and domain in LWRs, and the effect of nitrogen species on crevice chemistry/corrosion and intergranular stress corrosion cracking (IGSCC) susceptibility of structure materials in high temperature water. |
| first_indexed | 2024-03-12T13:27:17Z |
| format | Article |
| id | doaj.art-3e8633a48b39421da2858c8da441a249 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-03-12T13:27:17Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-3e8633a48b39421da2858c8da441a2492023-08-25T04:23:59ZengElsevierNuclear Engineering and Technology1738-57332023-09-0155931833193Radiochemical behavior of nitrogen species in high temperature waterYoung-Jin Kim0Geun Dong Song1Seung Heon Baek2Beom Kyu Kim3Jin Sik Cheon4Jun Hwan Kim5Hee-Sang Shim6Soon-Hyeok Jeon7Hyunmyung Kim8FNC Technology Co. Ltd, 13 Heungdeok 1-ro, Giheung-gu, Yongin-si, Gyeonggi-do, 16945, Republic of Korea; Corresponding author.FNC Technology Co. Ltd, 13 Heungdeok 1-ro, Giheung-gu, Yongin-si, Gyeonggi-do, 16945, Republic of KoreaFNC Technology Co. Ltd, 13 Heungdeok 1-ro, Giheung-gu, Yongin-si, Gyeonggi-do, 16945, Republic of KoreaFNC Technology Co. Ltd, 13 Heungdeok 1-ro, Giheung-gu, Yongin-si, Gyeonggi-do, 16945, Republic of KoreaKorea Atomic Energy Research Institute, 111 Daedeok-daero, Yuseong-gu, Daejeon, 34057, Republic of KoreaKorea Atomic Energy Research Institute, 111 Daedeok-daero, Yuseong-gu, Daejeon, 34057, Republic of KoreaKorea Atomic Energy Research Institute, 111 Daedeok-daero, Yuseong-gu, Daejeon, 34057, Republic of KoreaKorea Atomic Energy Research Institute, 111 Daedeok-daero, Yuseong-gu, Daejeon, 34057, Republic of KoreaKorea Atomic Energy Research Institute, 111 Daedeok-daero, Yuseong-gu, Daejeon, 34057, Republic of KoreaThe water radiolysis in-core at light water reactors (LWRs) produces various radicals with other ionic species/molecules and radioactive nitrogen species in the reactor coolant. Nitrogen species can exist in many different chemical forms and recirculate in water and steam, and consequently contribute to what extent the environmental safety at nuclear power plants. Therefore, a clear understanding of formation kinetics and chemical behaviors of nitrogen species under irradiation is crucial for better insight into the characteristics of major radioactive species released to the main steam or relevant coolant systems and eventually development of advanced processes/methodologies to enhance the environmental safety at nuclear power plants. This paper thus focuses on basic principles on electrochemical interaction kinetics of radiolytic molecules and various nitrogen species in high temperature water, fundamental approaches for calculating thermodynamic values to predict their stability and domain in LWRs, and the effect of nitrogen species on crevice chemistry/corrosion and intergranular stress corrosion cracking (IGSCC) susceptibility of structure materials in high temperature water.http://www.sciencedirect.com/science/article/pii/S1738573323002462RadiochemistryThermodynamic calculationNitrogen speciesRadicalsLight water reactorsStress corrosion cracking |
| spellingShingle | Young-Jin Kim Geun Dong Song Seung Heon Baek Beom Kyu Kim Jin Sik Cheon Jun Hwan Kim Hee-Sang Shim Soon-Hyeok Jeon Hyunmyung Kim Radiochemical behavior of nitrogen species in high temperature water Nuclear Engineering and Technology Radiochemistry Thermodynamic calculation Nitrogen species Radicals Light water reactors Stress corrosion cracking |
| title | Radiochemical behavior of nitrogen species in high temperature water |
| title_full | Radiochemical behavior of nitrogen species in high temperature water |
| title_fullStr | Radiochemical behavior of nitrogen species in high temperature water |
| title_full_unstemmed | Radiochemical behavior of nitrogen species in high temperature water |
| title_short | Radiochemical behavior of nitrogen species in high temperature water |
| title_sort | radiochemical behavior of nitrogen species in high temperature water |
| topic | Radiochemistry Thermodynamic calculation Nitrogen species Radicals Light water reactors Stress corrosion cracking |
| url | http://www.sciencedirect.com/science/article/pii/S1738573323002462 |
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