Remaining and emerging issues pertaining to the human reliability analysis of domestic nuclear power plants
Probabilistic safety assessments (PSA) have been used for several decades to visualize the risk level of commercial nuclear power plants (NPPs). Since the role of a human reliability analysis (HRA) is to provide human error probabilities for safety critical tasks to support PSA, PSA quality is stron...
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doaj-4e505b8c248c43b28cdcc895359e62012020-11-25T01:13:04ZengElsevierNuclear Engineering and Technology1738-57332019-08-0151512971306Remaining and emerging issues pertaining to the human reliability analysis of domestic nuclear power plantsJinkyun Park0Hojun Jeon1Jaewhan Kim2Namcheol Kim3Seong Kyu Park4Seungwoo Lee5Yong Suk Lee6Korea Atomic Energy Research Institute, Korea; Corresponding author.Korea Hydro and Nuclear Power, KoreaKorea Atomic Energy Research Institute, KoreaKorea Electric Power Corporation, Engineering and Construction, KoreaAtomic Creative Technology, Co. Ltd, KoreaKorea Institute of Nuclear Safety, KoreaFuture and Challenge, Co. Ltd, KoreaProbabilistic safety assessments (PSA) have been used for several decades to visualize the risk level of commercial nuclear power plants (NPPs). Since the role of a human reliability analysis (HRA) is to provide human error probabilities for safety critical tasks to support PSA, PSA quality is strongly affected by HRA quality. Therefore, it is important to understand the underlying limitations or problems of HRA techniques. For this reason, this study conducted a survey among 14 subject matter experts who represent the HRA community of domestic Korean NPPs. As a result, five significant HRA issues were identified: (1) providing a technical basis for the K-HRA (Korean HRA) method, and developing dedicated HRA methods applicable to (2) diverse external events to support Level 1 PSA, (3) digital environments, (4) mobile equipment, and (5) severe accident management guideline tasks to support Level 2 PSA. In addition, an HRA method to support multi-unit PSA was emphasized because it plays an important role in the evaluation of site risk, which is one of the hottest current issues. It is believed that creating such a catalog of prioritized issues will be a good indication of research direction to improve HRA and therefore PSA quality. Keywords: Human reliability analysis, Nuclear power plant, Remaining and emerging issues, Expert opinion, Importance, Significance, Issue priorityhttp://www.sciencedirect.com/science/article/pii/S1738573318306132 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jinkyun Park Hojun Jeon Jaewhan Kim Namcheol Kim Seong Kyu Park Seungwoo Lee Yong Suk Lee |
spellingShingle |
Jinkyun Park Hojun Jeon Jaewhan Kim Namcheol Kim Seong Kyu Park Seungwoo Lee Yong Suk Lee Remaining and emerging issues pertaining to the human reliability analysis of domestic nuclear power plants Nuclear Engineering and Technology |
author_facet |
Jinkyun Park Hojun Jeon Jaewhan Kim Namcheol Kim Seong Kyu Park Seungwoo Lee Yong Suk Lee |
author_sort |
Jinkyun Park |
title |
Remaining and emerging issues pertaining to the human reliability analysis of domestic nuclear power plants |
title_short |
Remaining and emerging issues pertaining to the human reliability analysis of domestic nuclear power plants |
title_full |
Remaining and emerging issues pertaining to the human reliability analysis of domestic nuclear power plants |
title_fullStr |
Remaining and emerging issues pertaining to the human reliability analysis of domestic nuclear power plants |
title_full_unstemmed |
Remaining and emerging issues pertaining to the human reliability analysis of domestic nuclear power plants |
title_sort |
remaining and emerging issues pertaining to the human reliability analysis of domestic nuclear power plants |
publisher |
Elsevier |
series |
Nuclear Engineering and Technology |
issn |
1738-5733 |
publishDate |
2019-08-01 |
description |
Probabilistic safety assessments (PSA) have been used for several decades to visualize the risk level of commercial nuclear power plants (NPPs). Since the role of a human reliability analysis (HRA) is to provide human error probabilities for safety critical tasks to support PSA, PSA quality is strongly affected by HRA quality. Therefore, it is important to understand the underlying limitations or problems of HRA techniques. For this reason, this study conducted a survey among 14 subject matter experts who represent the HRA community of domestic Korean NPPs. As a result, five significant HRA issues were identified: (1) providing a technical basis for the K-HRA (Korean HRA) method, and developing dedicated HRA methods applicable to (2) diverse external events to support Level 1 PSA, (3) digital environments, (4) mobile equipment, and (5) severe accident management guideline tasks to support Level 2 PSA. In addition, an HRA method to support multi-unit PSA was emphasized because it plays an important role in the evaluation of site risk, which is one of the hottest current issues. It is believed that creating such a catalog of prioritized issues will be a good indication of research direction to improve HRA and therefore PSA quality. Keywords: Human reliability analysis, Nuclear power plant, Remaining and emerging issues, Expert opinion, Importance, Significance, Issue priority |
url |
http://www.sciencedirect.com/science/article/pii/S1738573318306132 |
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