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Reliability analysis of shutdown system

Fulltext:


Authors:

Senthil Kumar Chandran

Research group:

Dependable Software Engineering

Publication Type:

Journal article

Venue:

Annals of Nuclear Energy

Publisher:

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

@article{Chandran1767,
author = {Senthil Kumar Chandran},
title = {Reliability analysis of shutdown system},
volume = {32},
pages = {63--87},
month = {September},
year = {2005},
journal = {Annals of Nuclear Energy},
publisher = {Elsevier},
url = {http://www.es.mdu.se/publications/1767-}
}