On the Use of Fault Tree Analysis to Capture Dynamic and Multistate Aspects in the Analysis of Hydrogen Systems

Hydrogen systems are being deployed to reduce fossil fuel dependence and support cleaner energy. Large-scale upscaling of hydrogen technology demands a strong understanding of reliability and risk. Fault tree analysis is a way to support this understanding, as a deductive technique utilized to asses...

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Main Authors: Dikshya Bhandari, Jon Tømmerås Selvik
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2025-06-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/15135
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author Dikshya Bhandari
Jon Tømmerås Selvik
author_facet Dikshya Bhandari
Jon Tømmerås Selvik
author_sort Dikshya Bhandari
collection DOAJ
description Hydrogen systems are being deployed to reduce fossil fuel dependence and support cleaner energy. Large-scale upscaling of hydrogen technology demands a strong understanding of reliability and risk. Fault tree analysis is a way to support this understanding, as a deductive technique utilized to assess failure paths and probabilities. However, traditional fault trees are often criticized for being static, having limited ability to model dynamic behaviors and multistate events, and relying on fixed probabilities for quantification. This paper explores alternatives to the traditional method and considers their relevance and attractiveness when assessing the reliability and risk of hydrogen systems. The focus is on how to capture dynamic behavior and multistate aspects in the technique. The applicability of the dynamic fault tree and multistate fault tree techniques was studied using three examples of a hydrogen storage explosion due to overpressure. The findings indicate that the two techniques add relevant aspects but also introduce complexities and uncertainties. To improve decision-making in this context, expanding the treatment of uncertainties is recommended to achieve more informed decision support. It is suggested that the strength of knowledge analysis be incorporated into the analyses.
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spelling doaj-art-b1983f4252f547f9907fc64d7ab5cea42025-08-20T02:37:42ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162025-06-01116On the Use of Fault Tree Analysis to Capture Dynamic and Multistate Aspects in the Analysis of Hydrogen SystemsDikshya BhandariJon Tømmerås SelvikHydrogen systems are being deployed to reduce fossil fuel dependence and support cleaner energy. Large-scale upscaling of hydrogen technology demands a strong understanding of reliability and risk. Fault tree analysis is a way to support this understanding, as a deductive technique utilized to assess failure paths and probabilities. However, traditional fault trees are often criticized for being static, having limited ability to model dynamic behaviors and multistate events, and relying on fixed probabilities for quantification. This paper explores alternatives to the traditional method and considers their relevance and attractiveness when assessing the reliability and risk of hydrogen systems. The focus is on how to capture dynamic behavior and multistate aspects in the technique. The applicability of the dynamic fault tree and multistate fault tree techniques was studied using three examples of a hydrogen storage explosion due to overpressure. The findings indicate that the two techniques add relevant aspects but also introduce complexities and uncertainties. To improve decision-making in this context, expanding the treatment of uncertainties is recommended to achieve more informed decision support. It is suggested that the strength of knowledge analysis be incorporated into the analyses.https://www.cetjournal.it/index.php/cet/article/view/15135
spellingShingle Dikshya Bhandari
Jon Tømmerås Selvik
On the Use of Fault Tree Analysis to Capture Dynamic and Multistate Aspects in the Analysis of Hydrogen Systems
Chemical Engineering Transactions
title On the Use of Fault Tree Analysis to Capture Dynamic and Multistate Aspects in the Analysis of Hydrogen Systems
title_full On the Use of Fault Tree Analysis to Capture Dynamic and Multistate Aspects in the Analysis of Hydrogen Systems
title_fullStr On the Use of Fault Tree Analysis to Capture Dynamic and Multistate Aspects in the Analysis of Hydrogen Systems
title_full_unstemmed On the Use of Fault Tree Analysis to Capture Dynamic and Multistate Aspects in the Analysis of Hydrogen Systems
title_short On the Use of Fault Tree Analysis to Capture Dynamic and Multistate Aspects in the Analysis of Hydrogen Systems
title_sort on the use of fault tree analysis to capture dynamic and multistate aspects in the analysis of hydrogen systems
url https://www.cetjournal.it/index.php/cet/article/view/15135
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