期刊
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
卷 54, 期 19, 页码 5862-5885出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207543.2016.1184348
关键词
uncertainty; risk analysis; randomness; fuzzy logic; Monte Carlo method; propylene oxide polymerisation reactor
Quantifying uncertainty during risk analysis has become an important part of effective decision-making and health risk assessment. However, most risk assessment studies struggle with uncertainty analysis and yet uncertainty with respect to model parameter values is of primary importance. Capturing uncertainty in risk assessment is vital in order to perform a sound risk analysis. In this paper, an approach to uncertainty analysis based on the fuzzy set theory and the Monte Carlo simulation is proposed. The question then arises as to how these two modes of representation of uncertainty can be combined for the purpose of estimating risk. The proposed method is applied to a propylene oxide polymerisation reactor. It takes into account both stochastic and epistemic uncertainties in the risk calculation. This study explores areas where random and fuzzy logic models may be applied to improve risk assessment in industrial plants with a dynamic system (change over time). It discusses the methodology and the process involved when using random and fuzzy logic systems for risk management.
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