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Reliability analysis of shutdown system

Authors: Senthil Kumar Chandran
Source: Annals of Nuclear Energy, vol 32, p63-87, Elsevier
 

Abstract

This paper presents the results of reliability analysis of Shutdown System (SDS) of Indian Prototype Fast Breeder Reactor. Reliability analysis carried out using Fault Tree Analysis predicts a value of 3.5 E-8/de for failure of shutdown function in case of global faults and 4.4E-8/de for local faults. Based on 20 de/y, the frequency of shutdown function failure is 0.7E-6/ry, which meets the reliability target, set by the Indian Atomic Energy Regulatory Board. The reliability is limited by Common Cause Failure (CCF) of actuation part of SDS and to a lesser extent CCF of electronic components. The failure frequency of individual systems is <1 E-3/ry, which also meets the safety criteria. Uncertainty analysis indicates a maximum error factor of 5 for the top event unavailability.
 

BibTeX entry

@article{Kumar_2110:2005,
   author = {Senthil Kumar Chandran},
   title = {Reliability analysis of shutdown system},
   journal = {Annals of Nuclear Energy},
   volume = {32},
   month = {September},
   year = {2005},
   pages = {63-87},
   publisher = {Elsevier},
   url = {http://www.mrtc.mdh.se/index.php?choice=publications&id=2110},
}

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