Recent advances in digital system reliability prediction

Author

Vinod, Gopika ; Santosh ; Rao, V. V S Sanyasi ; Vaze, K.K. ; Ghosh, A.K.

Author_Institution

Reactor Safety Div., Bhabha Atomic Res. Centre, Mumbai, India

fYear

2010

fDate

14-16 Dec. 2010

Firstpage

96

Lastpage

99

Abstract

Nuclear power plants (NPPs) traditionally relied upon analog instrumentation and control (I&C) systems for monitoring, control, and protection functions. With a shift in technology from analog systems to digital systems with their functional advantages, plants have begun such replacement, while new plant designs fully incorporate digital I&C systems. However, digital systems have some unique characteristics, such as using software, and may have different failure causes and/or modes than the analog systems; hence, their incorporation into NPP probabilistic safety assessments (PSA) entails special challenges. This paper highlights our recent work in incorporating contribution of software in digital I&C reliability analysis.

Keywords

fission reactor design; fission reactor instrumentation; fission reactor safety; nuclear power stations; Bayesian network; analog instrumentation-and-control systems; digital system reliability prediction; new plant designs; nuclear power plants; probabilistic safety assessments; Coordinate measuring machines; Instruments; Software; Software reliability; Time measurement; Bayesian Belief Network; Digital system reliability; Software reliability growth models; software metrices;

fLanguage

English

Publisher

ieee

Conference_Titel

Reliability, Safety and Hazard (ICRESH), 2010 2nd International Conference on

Conference_Location

Mumbai

Print_ISBN

978-1-4244-8344-0

Electronic_ISBN

978-1-4244-8343-3

Type

conf

DOI

10.1109/ICRESH.2010.5779813

Filename

5779813