Time-Dependent Risk Drivers of the Onboard High-Pressure Hydrogen Tank

Document Type : Original Research Paper

Authors

1 Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran.

2 Faculty of Engineering, University of Mohaghegh Ardabili, Ardabil, Iran.

10.22084/jrstan.2025.26537.1215

Abstract

 Hydrogen-powered vehicles are an excellent solution for controlling air pollution in large cities. During the last decade, rapid growth has been observed in hydrogen storage technologies for onboard applications. However, there is limited experience in using these technologies in the vehicle industry, and accordingly, the associated risks have not been fully identified. Risk assessment processes are typically performed based on qualitative, semi-quantitative, and quantitative approaches. Several researchers have investigated the risk analysis of potential random events during the lifecycle of hydrogen tanks. However, time-dependent risks such as hydrogen embrittlement, cracking, and metallurgical failures have not yet been studied. This study uses a fully quantitative risk assessment process for risk analysis of the onboard
high-pressure hydrogen vessels. Through this risk assessment process, the potential damage mechanisms, probabilities of failures, and the consequences of failures for hydrogen vessels are determined. According to the results from quantitative risk analysis, the likely failures may affect 32m2 around the failure location.

Keywords

References

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Journal of Stress Analysis
Volume 9, Issue 1
2025
Pages 1-8

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