Uncertainty Analysis for Target SIL Determination in the Offshore Industry

Kwangpil Chang 1 Sungteak Kim 1 Daejun Chang 2 Junkeon Ahn 2 Enrico Zio 3
3 Chaire Sciences des Systèmes et Défis Energétiques EDF/ECP/Supélec
LGI - Laboratoire Génie Industriel - EA 2606, SSEC - Chaire Sciences des Systèmes et Défis Energétiques EDF/ECP/Supélec
Abstract : The requirements on thedesign of SISs(Safety Instrumented Systems) based on SIL(Safety Integrity Level) have been developed continuously in the offshore industry. IEC 61508 and IEC 61511 illustrate various methodologies to determine the target SIL for specified safety functions, such as risk graph,layer of protection analysis, etc. These methods could arrive at different target SILs for the same safety function, mainly due to uncertainty in the models. In addition, uncertainties in the input parameters contribute to uncertainty in the target SIL. In the offshore industry, engineers usually utilize two or more methods to assess target SILs for the same function and take the most conservative value as the target SIL. In this paper, we investigate on the uncertainty in determining target SILs evaluatedby the risk graph method, Minimum SIL Table from OLF 070 and LOPA. A procedure of SIL determination accounting for uncertaintiesis proposed for the risk graph method, Minimum SIL Table from OLF 070 and LOPA by using a Fuzzy Set approach only and the combination of Monte Carlo simulation and Fuzzy Set approach.
Type de document :
Article dans une revue
Journal of Loss Prevention in the Process Industries, Elsevier, 2015
Liste complète des métadonnées

Littérature citée [22 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01259668
Contributeur : Yanfu Li <>
Soumis le : mercredi 20 janvier 2016 - 17:42:07
Dernière modification le : vendredi 20 octobre 2017 - 01:18:07
Document(s) archivé(s) le : vendredi 11 novembre 2016 - 13:50:13

Fichiers

(141230) Uncertainty Analysis ...
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01259668, version 1

Citation

Kwangpil Chang, Sungteak Kim, Daejun Chang, Junkeon Ahn, Enrico Zio. Uncertainty Analysis for Target SIL Determination in the Offshore Industry. Journal of Loss Prevention in the Process Industries, Elsevier, 2015. 〈hal-01259668〉

Partager

Métriques

Consultations de la notice

148

Téléchargements de fichiers

130