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| Content Provider | Springer Nature Link |
|---|---|
| Author | Hari Prasad, M. Rami Reddy, G. Srividya, A. Verma, A. K. |
| Copyright Year | 2012 |
| Abstract | In general, a power plant (nuclear, thermal, chemical etc.) consists of operating and emergency safety systems. These systems vary from very complex to simple systems. A system normally consists of active components and passive components. The failure of any operating system will lead to a change in the state of the plant. The availability of the plant depends on the successful operation of the operating systems and the operation of the components in the systems. In order to ensure the availability of the plant reliability of the systems/components should be ensured. In recent years most of the advanced nuclear reactors implement passive systems, aimed at improved safety and availability. In the traditional reliability analysis of passive systems the failure probability is estimated based on the actual components present in the system and their corresponding failure data information. However, the passive system may fail to fulfill its mission not only because of a consequence of classical mechanical failure of component (passive or active) of the passive system, but also due to the deviation from expected behavior due to physical phenomena mainly related to thermal hydraulic (called as virtual component, VC). Hence, one should consider the failure probability of the VC in the analysis. In this paper a methodology for performing passive system reliability, which combines the actual component failures and the failure of VC, has been proposed based on fuzzy fault tree approach. This methodology will eliminate the simulation based approach that is being adopted in the present day passive system reliability analysis. The methodology has been demonstrated with a case study on passive decay heat removal system of a typical nuclear power plant. |
| Starting Page | 237 |
| Ending Page | 245 |
| Page Count | 9 |
| File Format | |
| ISSN | 09756809 |
| Journal | International Journal of System Assurance Engineering and Management |
| Volume Number | 3 |
| Issue Number | 3 |
| e-ISSN | 09764348 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2012-04-25 |
| Publisher Place | India |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Passive system Reliability Fuzzy set Fault tree Response surface Engineering Economics, Organization, Logistics, Marketing Quality Control, Reliability, Safety and Risk |
| Content Type | Text |
| Resource Type | Article |
| Subject | Strategy and Management Safety, Risk, Reliability and Quality |
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