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Paper Information

Journal:   JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING   SUMMER 2017 , Volume 4 , Number 2 ; Page(s) 41 To 52.
 
Paper: 

PROBABILISTIC RISK ASSESSMENT USING THE FUZZY FAULT TREE ANALYSIS BASED ON TWO TYPES OF FAILURE POSSIBILITY DISTRIBUTIONS IN PROCESS INDUSTRIES

 
 
Author(s):  BEKBAKI ABBAS, NEBHANI NADER, ANVARIPOUR BAGHER*, SHIRALI GHOLAM ABBAS
 
* DEPARTMENT OF SAFETY AND TECHNICAL PROTECTION ENGINEERING, ABADAN FACULTY OF PETROLEUM, PETROLEUM UNIVERSITY OF TECHNOLOGY, ABADAN, IRAN
 
Abstract: 

Background and Objective: Probabilistic risk assessment through fault tree analysis is an effective tool to estimate the probability of hazardous event occurrence in chemical process industries. The probability of failure occurrence for basic events is not often available in process industries. The aim of this study was to calculate the basic event failure occurrence probability when these events have no precise failure data.
Materials and Methods: In this study, the proposed risk assessment framework was based on two fuzzy-based approaches, including five and six scales. Firstly, the fault tree diagram was constructed using the risk identification methods. Subsequently, the failure occurrence probability of the basic events were calculated by applying the two types of failure possibility distributions. Finally, the critical minimal cut sets were ranked using the importance measure analysis.
Results: According to the results, the failure occurrence probabilities calculated by the five-scale and six-scale approaches for the 32 basic events were closed to each other. The occurrence probability of the top event calculated by the five-scale and six-scale approaches were 3.64E-04 and 4.76E-04 per year, respectively. After ranking the minimal cut sets based on their calculated importance measures, the process failures were determined as the critical causes of top event.
Conclusion: As the findings indicated, the fuzzy-based approach seems to be a good alternative for the conventional Fault tree analysis approach for dealing with the basic events, which have no failure rate data for obtaining the failure occurrence probabilities. This study confirmed the consistency of fuzzy-based approach for the assessment of the basic event failure occurrence probabilities.

 
Keyword(s): EXPERT JUDGMENT, FUZZY LOGIC, FAILURE OCCURRENCE PROBABILITY, FAILURE POSSIBILITY, FUZZY FAULT TREE ANALYSIS
 
 
References: 
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APA: Copy

BEKBAKI, A., & NEBHANI, N., & ANVARIPOUR, B., & SHIRALI, G. (2017). PROBABILISTIC RISK ASSESSMENT USING THE FUZZY FAULT TREE ANALYSIS BASED ON TWO TYPES OF FAILURE POSSIBILITY DISTRIBUTIONS IN PROCESS INDUSTRIES. JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING, 4(2 ), 41-52. https://www.sid.ir/en/journal/ViewPaper.aspx?id=568981



Vancouver: Copy

BEKBAKI ABBAS, NEBHANI NADER, ANVARIPOUR BAGHER, SHIRALI GHOLAM ABBAS. PROBABILISTIC RISK ASSESSMENT USING THE FUZZY FAULT TREE ANALYSIS BASED ON TWO TYPES OF FAILURE POSSIBILITY DISTRIBUTIONS IN PROCESS INDUSTRIES. JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING. 2017 [cited 2021May16];4(2 ):41-52. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=568981



IEEE: Copy

BEKBAKI, A., NEBHANI, N., ANVARIPOUR, B., SHIRALI, G., 2017. PROBABILISTIC RISK ASSESSMENT USING THE FUZZY FAULT TREE ANALYSIS BASED ON TWO TYPES OF FAILURE POSSIBILITY DISTRIBUTIONS IN PROCESS INDUSTRIES. JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING, [online] 4(2 ), pp.41-52. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=568981.



 
 
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