Use of Reliability Block Diagram and Fault Tree Techniques in Reliability Analysis of Emergency Diesel Generators of Nuclear Power Plants
Nuclear power plants (NPPs) are subjected to events such as equipment failures, human errors and common-cause failures, in an environment of complex maintenance, inspection and testing managements. These events will affect the reliability of safety-related systems, as well as the risk level of the p...
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| Format: | Article |
| Language: | English |
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Ram Arti Publishers
2019-08-01
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| Series: | International Journal of Mathematical, Engineering and Management Sciences |
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| Online Access: | https://www.ijmems.in/assets//64-IJMEMS-19-253-Vol.%204,%20No.%204,%20814%E2%80%93823,%202019.pdf |
| _version_ | 1811329623046225920 |
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| author | Vanderley de Vasconcelos Wellington Antonio Soares Antônio Carlos Lopes da Costa Amanda Laureano Raso |
| author_facet | Vanderley de Vasconcelos Wellington Antonio Soares Antônio Carlos Lopes da Costa Amanda Laureano Raso |
| author_sort | Vanderley de Vasconcelos |
| collection | DOAJ |
| description | Nuclear power plants (NPPs) are subjected to events such as equipment failures, human errors and common-cause failures, in an environment of complex maintenance, inspection and testing managements. These events will affect the reliability of safety-related systems, as well as the risk level of the plant. Reliability block diagram (RBD) is often used to analyze the effect of item failures on system availability, taking into account their physical arrangement in the system. Fault tree (FT) is a commonly used technique for analyzing risk and reliability in nuclear, aeronautical and chemical industries. It represents graphically the basic events that will cause an undesired top event. Loss of electrical power is one of the main events that influences safe operation of NPPs, as well as accident prevention and mitigation. In case of unavailability of offsite power, emergency diesel generators (EDGs) supply onsite electrical power. This paper carries out reliability analyses of EDGs of NPPs using both RBD and FT techniques. Each technique has its own advantages and disadvantages, allowing a variety of qualitative and quantitative analyses. Outcomes using these two techniques are compared for a typical NPP EDG system. |
| first_indexed | 2024-04-13T15:47:04Z |
| format | Article |
| id | doaj.art-f85d4bc94dd449faa652c10b57f92d36 |
| institution | Directory Open Access Journal |
| issn | 2455-7749 2455-7749 |
| language | English |
| last_indexed | 2024-04-13T15:47:04Z |
| publishDate | 2019-08-01 |
| publisher | Ram Arti Publishers |
| record_format | Article |
| series | International Journal of Mathematical, Engineering and Management Sciences |
| spelling | doaj.art-f85d4bc94dd449faa652c10b57f92d362022-12-22T02:40:57ZengRam Arti PublishersInternational Journal of Mathematical, Engineering and Management Sciences2455-77492455-77492019-08-014481482310.33889/IJMEMS.2019.4.4-064Use of Reliability Block Diagram and Fault Tree Techniques in Reliability Analysis of Emergency Diesel Generators of Nuclear Power PlantsVanderley de Vasconcelos0Wellington Antonio Soares1Antônio Carlos Lopes da Costa2Amanda Laureano Raso3Centro de Desenvolvimento da Tecnologia Nuclear – CDTN/CNEN, Belo Horizonte, BrasilCentro de Desenvolvimento da Tecnologia Nuclear – CDTN/CNEN, Belo Horizonte, BrasilCentro de Desenvolvimento da Tecnologia Nuclear – CDTN/CNEN, Belo Horizonte, BrasilCentro de Desenvolvimento da Tecnologia Nuclear – CDTN/CNEN, Belo Horizonte, BrasilNuclear power plants (NPPs) are subjected to events such as equipment failures, human errors and common-cause failures, in an environment of complex maintenance, inspection and testing managements. These events will affect the reliability of safety-related systems, as well as the risk level of the plant. Reliability block diagram (RBD) is often used to analyze the effect of item failures on system availability, taking into account their physical arrangement in the system. Fault tree (FT) is a commonly used technique for analyzing risk and reliability in nuclear, aeronautical and chemical industries. It represents graphically the basic events that will cause an undesired top event. Loss of electrical power is one of the main events that influences safe operation of NPPs, as well as accident prevention and mitigation. In case of unavailability of offsite power, emergency diesel generators (EDGs) supply onsite electrical power. This paper carries out reliability analyses of EDGs of NPPs using both RBD and FT techniques. Each technique has its own advantages and disadvantages, allowing a variety of qualitative and quantitative analyses. Outcomes using these two techniques are compared for a typical NPP EDG system.https://www.ijmems.in/assets//64-IJMEMS-19-253-Vol.%204,%20No.%204,%20814%E2%80%93823,%202019.pdfReliability block diagramFault treeEmergency diesel generatorNuclear power plantReliability |
| spellingShingle | Vanderley de Vasconcelos Wellington Antonio Soares Antônio Carlos Lopes da Costa Amanda Laureano Raso Use of Reliability Block Diagram and Fault Tree Techniques in Reliability Analysis of Emergency Diesel Generators of Nuclear Power Plants International Journal of Mathematical, Engineering and Management Sciences Reliability block diagram Fault tree Emergency diesel generator Nuclear power plant Reliability |
| title | Use of Reliability Block Diagram and Fault Tree Techniques in Reliability Analysis of Emergency Diesel Generators of Nuclear Power Plants |
| title_full | Use of Reliability Block Diagram and Fault Tree Techniques in Reliability Analysis of Emergency Diesel Generators of Nuclear Power Plants |
| title_fullStr | Use of Reliability Block Diagram and Fault Tree Techniques in Reliability Analysis of Emergency Diesel Generators of Nuclear Power Plants |
| title_full_unstemmed | Use of Reliability Block Diagram and Fault Tree Techniques in Reliability Analysis of Emergency Diesel Generators of Nuclear Power Plants |
| title_short | Use of Reliability Block Diagram and Fault Tree Techniques in Reliability Analysis of Emergency Diesel Generators of Nuclear Power Plants |
| title_sort | use of reliability block diagram and fault tree techniques in reliability analysis of emergency diesel generators of nuclear power plants |
| topic | Reliability block diagram Fault tree Emergency diesel generator Nuclear power plant Reliability |
| url | https://www.ijmems.in/assets//64-IJMEMS-19-253-Vol.%204,%20No.%204,%20814%E2%80%93823,%202019.pdf |
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