Uncertainty Analysis for Target SIL Determination in the Offshore Industry

Autor: Sungteak Kim, Kwangpil Chang, Junkeon Ahn, Daejun Chang, Enrico Zio
Přispěvatelé: Hyundai Heavy Industries, Korea Advanced Institute of Science and Technology, Chaire Sciences des Systèmes et Défis Energétiques EDF/ECP/Supélec (SSEC), Ecole Centrale Paris-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-CentraleSupélec-EDF R&D (EDF R&D), EDF (EDF)-EDF (EDF)
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Risk
musculoskeletal diseases
Engineering
General Chemical Engineering
Risk Graph Method
Monte Carlo method
Fuzzy set
Energy Engineering and Power Technology
LOPA
Management Science and Operations Research
Industrial and Manufacturing Engineering
Montefulation
Fuzzy Set
Minimum sil tablefrom OLF70
Offshore industry
Risk graph method
SIL determination
Uncertainty analysis
Control and Systems Engineering
Safety
Risk
Reliability and Quality
Chemical Engineering (all)
Food Science
immune system diseases
hemic and lymphatic diseases
Minimum SIL Table from OLF70
ComputingMilieux_MISCELLANEOUS
Offshore Industry
business.industry
[SPI.NRJ]Engineering Sciences [physics]/Electric power
virus diseases
Monte Carlo Simulation
IEC 61508
Function (mathematics)
female genital diseases and pregnancy complications
Reliability engineering
SIL Determination
Reliability and Quality
Safety instrumented system
Graph (abstract data type)
Safety
business
Uncertainty Analysis
Zdroj: Journal of Loss Prevention in the Process Industries
Journal of Loss Prevention in the Process Industries, Elsevier, 2015, 34, pp.151-162. ⟨10.1016/j.jlp.2015.01.030⟩
ISSN: 0950-4230
DOI: 10.1016/j.jlp.2015.01.030⟩
Popis: The requirements on the design 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 evaluated by the risk graph method, Minimum SIL Table from OLF 070 and LOPA. A procedure of SIL determination accounting for uncertainties is 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.
Databáze: OpenAIRE
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