Volume 13: Risk Assessments and Management最新文献_第6页

Research on Risk Management of Nuclear Engineering - Taking T Project Reverse Power Supply As an Example 核工程风险管理研究——以T项目逆向供电为例

Volume 13: Risk Assessments and Management Pub Date : 2022-08-08 DOI: 10.1115/icone29-90277

Baoquan Wang

{"title":"Research on Risk Management of Nuclear Engineering - Taking T Project Reverse Power Supply As an Example","authors":"Baoquan Wang","doi":"10.1115/icone29-90277","DOIUrl":"https://doi.org/10.1115/icone29-90277","url":null,"abstract":"\u0000 Under the vision of sustainable development and a community with a shared future for mankind, the era of “zero carbon” is coming to us. Nuclear energy has long been seen as one of the powerful means to achieve a “carbon neutral” future. Nuclear power projects are characterized by high technical requirements, long construction period, complex system composition, numerous stakeholders and heavy social responsibilities. Any link is crucial. Therefore, effective risk management of nuclear power projects is of great significance.\u0000 Based on the actual situation of nuclear POWER T project, the following studies are carried out:\u0000 (1) Through the research of domestic and foreign literature, Delphi method anonymous voting and expert consultation meeting were adopted to merge, filter and supplement the risk factors, and 24 risk factors in seven categories, including design, installation and commissioning, construction, contract, external, procurement and administrative licensing, were identified in the process of power transmission of NUCLEAR POWER T project.\u0000 (2) AHP fuzzy comprehensive evaluation method is used to select the hierarchical structure model of power supply risk factors, construct a judgment matrix, establish a risk evaluation table, calculate the risk weight of each level and rank it, compare the value interval of risk evaluation set, and get the power supply risk level of NUCLEAR power T project.\u0000 (3) In the outlook, the author considers the use of bow-tie model to prevent and control risk events in advance in the future, so as to formulate measures. Finally, the integrated risk control platform of reporting, early-warning, disposal and monitoring is proposed to form a closed-loop management of risk identification, reporting, disposal and rectification.","PeriodicalId":407628,"journal":{"name":"Volume 13: Risk Assessments and Management","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114922705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PSA Application in UK HPR1000 Numerical Targets Evaluation PSA在英国HPR1000数值指标评价中的应用

Volume 13: Risk Assessments and Management Pub Date : 2022-08-08 DOI: 10.1115/icone29-92462

Lingmei Xiao, Bing Zhang, Ming Wang, Jinkai Wang

引用次数: 0

Study on Maintenance Strategy Optimization of Nuclear Power Plants After the Implementation of Maintenance Rule 核电站实施维修规则后的维修策略优化研究

Volume 13: Risk Assessments and Management Pub Date : 2022-08-08 DOI: 10.1115/icone29-93167

Ma Xiliang, Xie Yongkui

引用次数: 0

Research on Risk-Informed Regulation Approaches of MSPI and SDP 基于风险的MSPI和SDP监管方法研究

Volume 13: Risk Assessments and Management Pub Date : 2022-08-08 DOI: 10.1115/icone29-90820

Guoxu Zhang, L. Chen

引用次数: 0

Nuclear Power Plant Design Optimization Based on Risk-Informed Method 基于风险信息方法的核电站设计优化

Volume 13: Risk Assessments and Management Pub Date : 2022-08-08 DOI: 10.1115/icone29-89268

Wenjing Li, Y. Liu, Gaopeng Wang, Xinli Yu

{"title":"Nuclear Power Plant Design Optimization Based on Risk-Informed Method","authors":"Wenjing Li, Y. Liu, Gaopeng Wang, Xinli Yu","doi":"10.1115/icone29-89268","DOIUrl":"https://doi.org/10.1115/icone29-89268","url":null,"abstract":"\u0000 The probabilistic safety analysis method is an effective tool to demonstrate the balance of design and identify the vulnerabilities. It can provide technical support for the design optimization of nuclear power plant. A nuclear power plant in China specially designed the reactor cavity injection system (RCI) with both active and passive trains to mitigate the severe accident with core damaged. When the core damage accident occurs, the melt debris in the lower head can be cooled by RCI with water injection to the outside surface of the reactor vessel, thereby maintaining the integrity of the vessel and realizing the core melt in-vessel retention (IVR). This paper will introduce the design of the cavity injection system, and use the PSA method to establish a model of the system. Then the reliability of the system and its contribution to the large release frequency will be discussed, the vulnerability of the system will be identified. System design optimization recommendations will be proposed based on PSA results, and the results comparison between the optimization scheme and the original design is discussed. It can be concluded that in the design process of NPP, risk-informed methods should be considered as an important technical support tool.","PeriodicalId":407628,"journal":{"name":"Volume 13: Risk Assessments and Management","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128202809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Practice of Risk-Informed Nuclear Safety Management in CGN 中广核风险知情核安全管理实践

Volume 13: Risk Assessments and Management Pub Date : 2022-08-08 DOI: 10.1115/icone29-93663

Chen Shijun, Luo Wenbo, Wang Zichun, C. Lihui

引用次数: 0

Study on Probability Safety Assessment Method of Small Aircraft Crash Event in a Nuclear Power Plant 核电厂小型飞机坠毁事件概率安全评估方法研究

Volume 13: Risk Assessments and Management Pub Date : 2022-08-08 DOI: 10.1115/icone29-90733

Handing Wang, X. Liang

{"title":"Study on Probability Safety Assessment Method of Small Aircraft Crash Event in a Nuclear Power Plant","authors":"Handing Wang, X. Liang","doi":"10.1115/icone29-90733","DOIUrl":"https://doi.org/10.1115/icone29-90733","url":null,"abstract":"\u0000 In nuclear power plants, one of the external human-caused events is aircraft crash. The method used to evaluate the risk of aircraft crash must comply with the requirements of national nuclear safety guidelines. When estimating the distance of aircraft from facility, the events for which the aircraft distance satisfying the screening guidelines may be left out of account firstly. While for those unmet, it is necessary to apply probability safety assessment to further study whether the risk of aircraft crash into nuclear power plants is within the probabilistic screening level. If the aircraft impact can not be eliminated through distance or probability screening, the next step is to identify the corresponding aircraft type, and determine the design basis of aircraft crash event as an input. For the purpose, this paper analyzes the impacts of small military airports near nuclear power plants, and researches into the probability safety assessment method for military aircraft impacting nuclear power plants, i.e., airport and non-airport operation risks. According to the study, the risk of airport operation can be ignored as the conditional probability f (x, y) representing the military aircraft falling to the site shows very low. Conservatively considering the military aircraft impact “four-factor formula parameters”, the aircraft crash impact frequency of non-airport operation is 6.23E−08/year, also the total impact frequency of military aircraft crash event, which is less than the screening level in terms of probability and meets the requirements of nuclear safety guidelines. This study aims at providing certain reference value for the establishment of design basis to protect nuclear power plants from aircraft crash.","PeriodicalId":407628,"journal":{"name":"Volume 13: Risk Assessments and Management","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132953019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on Optimization Method of Risk-Informed In-Service Inspection Strategy of RCP-RRA Connection Inlet Valve in Nuclear Power Plant 核电厂RCP-RRA连接进口阀在役检测策略的风险知情优化方法研究

Volume 13: Risk Assessments and Management Pub Date : 2022-08-08 DOI: 10.1115/icone29-93142

Chen Li-hui, Yong Zhang, Chen Shi-jun

引用次数: 0

Application of Nuclear Insurance Risk Survey Results in Nuclear Power Plant Safety Improvement Program 核保险风险调查结果在核电厂安全改进计划中的应用

Volume 13: Risk Assessments and Management Pub Date : 2022-08-08 DOI: 10.1115/icone29-90396

Jiang Ping, An Jiangtao, Liu Changliang

{"title":"Application of Nuclear Insurance Risk Survey Results in Nuclear Power Plant Safety Improvement Program","authors":"Jiang Ping, An Jiangtao, Liu Changliang","doi":"10.1115/icone29-90396","DOIUrl":"https://doi.org/10.1115/icone29-90396","url":null,"abstract":"\u0000 From the prospective of loss prevention, economic risk reduction and catastrophe risk reduction, nuclear insurance risk survey provides professional and foresighted safety improvement recommendations based on the international nuclear and insurance experience. As a common international risk management practice, nuclear insurers provide loss prevention evaluation services, which is considered as peer review by nuclear operators. With the development of Chinese insurance industry and increasing loss prevention demand from Chinese nuclear power plant, Chinese insurance industry gradually integrates international practice, and establishes a systematic, Chinese characterized nuclear insurance survey methodology. This thesis introduces insurance survey background and importance, analyses the areas in which insurance survey could support nuclear power risk management. This paper focuses on risk survey methodology and implementation plan based on insurance service practices, and analyses survey result trends. The methodology has been implemented in nuclear power risk management regime. Recent cases have verified the insurance survey could support nuclear power plant safety improvement. Besides, based on the current practice, this paper suggest the potential ways to improve the interface between insurance risk survey and nuclear power risk management, improve common risk and enhance survey effectiveness.","PeriodicalId":407628,"journal":{"name":"Volume 13: Risk Assessments and Management","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131038841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0