Enter your email address
Submit
Write your message
Volume 15, Issue 2 (Summer-In Press 2025)
Disaster Prev. Manag. Know. 2025, 15(2): 6-6 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Mohammadfam I, Eskandari T. Dynamic Risk Assessment and Analysis Model for Hydrogen Gas Leakage in a Chlorination Unit of a Combined Cycle Power Plant Using the Bow-Tie Technique. Disaster Prev. Manag. Know. 2025; 15 (2) :6-6
URL: http://dpmk.ir/article-1-731-en.html
URL: http://dpmk.ir/article-1-731-en.html
1- Department of Ergonomics, Health in Emergency and Disaster Research Center, University of Social Welfare and Rehabilitation Science, Tehran, Iran
2- Department of Occupational Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
2- Department of Occupational Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
Abstract: (173 Views)
Background and Objective: The Power plant is one of the most important centers in the world from the point of view of occupational accidents. Considering the critical position of combined cycle power plants, in order to maintain the manpower, reduce the cost of occupational accidents and reduce the lost days, the fundamental rooting of events in these industries should be investigated, researched and reviewed.
Methods: At first, the hydrogen gas leakage from the chlorination unit was selected as the study scenario to probabilistic risk assessment. For cause-consequence analysis of desired scenario from Bow-Tie diagram. The Bow-tie method is a graphical technique for representing the complete scenario of an incident, starting from its causes and ending with its consequences.
Results: Hydrogen gas leak analysis from chlorination unit using Bow-tie technique identified 44 basic events. Also, 3 safety barriers that prevent the occurrence of the desired scenario were identified that success and failure of these safety barriers led to the determination of 6 consequences.
Conclusion: The cause-consequence analysis of the scenario was conducted using the Bow-tie diagram, identifying basic events, intermediate events, safety barriers, and potential consequences resulting from hydrogen leakage in the chlorination unit. Based on the BT technique analysis, the malfunction of electrolyzers was identified as the most significant cause, and explosion/jet fire/flash fire were recognized as the most critical consequences of hydrogen leakage in the chlorination unit.
Methods: At first, the hydrogen gas leakage from the chlorination unit was selected as the study scenario to probabilistic risk assessment. For cause-consequence analysis of desired scenario from Bow-Tie diagram. The Bow-tie method is a graphical technique for representing the complete scenario of an incident, starting from its causes and ending with its consequences.
Results: Hydrogen gas leak analysis from chlorination unit using Bow-tie technique identified 44 basic events. Also, 3 safety barriers that prevent the occurrence of the desired scenario were identified that success and failure of these safety barriers led to the determination of 6 consequences.
Conclusion: The cause-consequence analysis of the scenario was conducted using the Bow-tie diagram, identifying basic events, intermediate events, safety barriers, and potential consequences resulting from hydrogen leakage in the chlorination unit. Based on the BT technique analysis, the malfunction of electrolyzers was identified as the most significant cause, and explosion/jet fire/flash fire were recognized as the most critical consequences of hydrogen leakage in the chlorination unit.
Type of Study: Research |
Subject:
Special
Received: 2024/12/7 | Accepted: 2025/03/1 | ePublished: 2025/09/19
Received: 2024/12/7 | Accepted: 2025/03/1 | ePublished: 2025/09/19
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
Copyright © 2025 The Author(s)" by "authors retain the copyright and full publishing rights"
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC-By-NC), which permits use, distribution, and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Contact Information
