Sensitivity analysis and dimension reduction of a steam generator model for clogging diagnosis

Sylvain Girard, Thomas Romary, Jean-Melaine Favennec, Pascal Stabat and Hans Wackernagel

Reliability Engineering and System Safety, 2013, vol. 113, issue C, 143-153

Abstract: Nuclear steam generators are subject to clogging of their internal parts which causes safety issues. Diagnosis methodologies are needed to optimize maintenance operations. Clogging alters the dynamic behaviour of steam generators and particularly the response of the wide range level (WRL – a pressure measurement) to power transients. A numerical model of this phenomenon has previously been developed. Its input variables describe the spatial distribution of clogging and its output is a discretization of the WRL dynamic response.

Keywords: Sensitivity analysis; Principal component analysis (PCA); Sliced inverse regression (SIR); Bootstrap; Steam generators; Clogging (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:113:y:2013:i:c:p:143-153

DOI: 10.1016/j.ress.2012.12.012

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