Journal
RELIABILITY ENGINEERING & SYSTEM SAFETY
Volume 205, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ress.2020.107232
Keywords
Resilience assessment; Chemical process systems; Dynamic Bayesian network; FRAM
Funding
- Young Researchers Alliance
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The study highlights the importance of resilience as a crucial property of chemical process systems under uncertain and unpredictable circumstances due to technical-human-organizational interactions. Resilience assessment is essential for identifying root causes of accidents and developing specific resilience attributes to withstand disruptions. The integration of Functional Resonance Analysis Method and dynamic Bayesian Network provides a useful tool for rigorous quantitative resilience analysis of complex process systems.
The emergent hazards of chemical process systems cannot be wholly identified and are highly uncertain due to the complicated technical-human-organizational interactions. Under uncertain and unpredictable circumstances, resilience becomes an essential property of a chemical process system that helps it better adapt to disruptions and restore from surprising damages. The resilience assessment needs to be enhanced to identify the accidents root causes on the level of technical-human-organizational interactions, and development of the specific resilience attributes to withstand or recover from the disruptions. The outcomes of resilience assessment are valuable to identify potential design or operational improvements to ensure complex process system functionality and safety. The current study integrates the Functional Resonance Analysis Method and dynamic Bayesian Network for quantitative resilience assessment. The method is demonstrated through a two-phase separator of an acid gas sweetening unit. Aspen Hysys simulator is applied to estimate the failure probabilities needed in the resilience assessment model. The study provides a useful tool for rigorous quantitative resilience analysis of complex process systems on the level of technical-human-organizational interactions.
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