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Design of scenario-based early warning system for process operations


Wang, H and Khan, FI and Ahmed, S, Design of scenario-based early warning system for process operations, Industrial and Engineering Chemistry Research, 54, (33) pp. 8255-8265. ISSN 0888-5885 (2015) [Refereed Article]

Copyright Statement

Copyright 2015 American Chemical Society

DOI: doi:10.1021/acs.iecr.5b02481


Alarm flooding is a significant problem in the process industries. To solve this problem, a scenario-based early warning system design methodology is proposed. It comprises three steps: (i) scenario identification: events are identified by HAZOP analysis, variables are allocated to the scenario-based group, and the variables states correlated to the scenarios are identified; (ii) model development: Bayesian network of all variables is learned from the process data, and the events nodes are appended according to expert knowledge to construct the Bayesian network model of a scenario-based early warning system; (iii) model implementation: the model is applied online to monitor process, the monitored variables continuously produce evidence, update the events probabilities, find the root causes, and give an events warning message together with the root cause to operators. The methodology implementation and salient points are explained with the help of an easy to follow simple case study.

Item Details

Item Type:Refereed Article
Keywords:Bayesian networks, Bayesian network models, early Warning System, model development, model implementation, process industries, process operation, scenario identifications, warning messages, computer aided network analysis
Research Division:Engineering
Research Group:Engineering practice and education
Research Field:Risk engineering
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in engineering
UTAS Author:Khan, FI (Professor Faisal Khan)
ID Code:120539
Year Published:2015
Web of Science® Times Cited:13
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2017-08-28
Last Modified:2017-11-06

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