Assessment of an accidental hydrogen leak from a vehicle tank in a confined space

Hajji, Yassine; Bouteraa, Mourad; Bournot, Philippe; Bououdina, M.

doi:10.1016/j.ijhydene.2022.06.176

Cited by 25 publications

(8 citation statements)

References 20 publications

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“…Implementing the correct method of ventilation in confined spaces is very crucial to ensure the effectiveness of the ventilation. The ineffectiveness of ventilation method will leading to serious damage to occupational health of workers [54,55].…”

Section: Development Of a Preventive Measurementioning

confidence: 99%

Identification of root cause of fatal confined space incidents in Malaysia and strategies for prevention

Arifin,

Ahmad,

Abas

et al. 2024

Discov Sustain

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Background The high number of confined space incidents in Malaysia suggests that working in a confined space exposes workers to a substantial risk of serious injury or fatality. The rapid development of industry and technology has increased the need to work in confined spaces and significantly impacted the risk management of confined spaces. Utilizing past incident data through investigation will help develop risk management and preventive measures related to confined spaces. As a result, this paper will conduct a fatal incident investigation associated with confined spaces from 2010 to 2020 in Malaysia. Methodology The incident investigation uses the improved systematic casual analysis technique (SCAT) to identify the immediate cause and the direct cause. From the identified fatal incidents immediate causes, the study will highlight the main hazard that causes fatal incidents in confined spaces. The preventive measure is developed based on the main hazard of confined spaces that cause fatalities. Result The result of the study has identified that physical and atmospheric hazards are the main factors that cause fatal incidents associated with confined spaces in Malaysia. Moreover, from the SCAT checklist, the study has revealed that failing to use PPE properly and hazardous environmental conditions are the main immediate cause of fatal incidents in confined spaces. Conclusion Effective risk management of confined spaces, with a particular focus on addressing atmospheric and physical hazards, is crucial for preventing accidents, especially those incidents resulting in fatalities. Future studies should expand their focus to include injuries and near-miss events in confined spaces, aiming to develop more effective and inclusive safety measures by analyzing a broader range of incidents.

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Section: Development Of a Preventive Measurementioning

confidence: 99%

Identification of root cause of fatal confined space incidents in Malaysia and strategies for prevention

Arifin,

Ahmad,

Abas

et al. 2024

Discov Sustain

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“…The nozzles are intricately engineered with safety interlocks to prevent unintended hydrogen release, while integrated sensors continuously monitor crucial parameters such as temperature and pressure to guarantee operational safety. Moreover, the dispensers are outfitted with automatic shut-off valves that have a vital function in halting the flow of hydrogen in the event of malfunction, thereby substantially diminishing the likelihood of accidents [26].…”

Section: Hydrogen Dispenser Design and Maintenancementioning

confidence: 99%

An Exploration of Safety Measures in Hydrogen Refueling Stations: Delving into Hydrogen Equipment and Technical Performance

Genovese,

Blekhman,

Fragiacomo

2024

Hydrogen

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The present paper offers a thorough examination of the safety measures enforced at hydrogen filling stations, emphasizing their crucial significance in the wider endeavor to advocate for hydrogen as a sustainable and reliable substitute for conventional fuels. The analysis reveals a wide range of crucial safety aspects in hydrogen refueling stations, including regulated hydrogen dispensing, leak detection, accurate hydrogen flow measurement, emergency shutdown systems, fire-suppression mechanisms, hydrogen distribution and pressure management, and appropriate hydrogen storage and cooling for secure refueling operations. The paper therefore explores several aspects, including the sophisticated architecture of hydrogen dispensers, reliable leak-detection systems, emergency shut-off mechanisms, and the implementation of fire-suppression tactics. Furthermore, it emphasizes that the safety and effectiveness of hydrogen filling stations are closely connected to the accuracy in the creation and upkeep of hydrogen dispensers. It highlights the need for materials and systems that can endure severe circumstances of elevated pressure and temperature while maintaining safety. The use of sophisticated leak-detection technology is crucial for rapidly detecting and reducing possible threats, therefore improving the overall safety of these facilities. Moreover, the research elucidates the complexities of emergency shut-off systems and fire-suppression tactics. These components are crucial not just for promptly managing hazards, but also for maintaining the station’s structural soundness in unanticipated circumstances. In addition, the study provides observations about recent technical progress in the industry. These advances effectively tackle current safety obstacles and provide the foundation for future breakthroughs in hydrogen fueling infrastructure. The integration of cutting-edge technology and materials, together with the development of upgraded safety measures, suggests a positive trajectory towards improved efficiency, dependability, and safety in hydrogen refueling stations.

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“…Venetsanos et al [1] investigated realistic small to medium indoor hydrogen leaks and provided recommendations for the safe use/storage of indoor hydrogen systems. Hajj et al [2][3] studied the leakage of hydrogen and its dispersion in confined spaces, followed by the formation of clouds from the hydrogen mixture in the air. The main concern is the shape of the roof and the duration of the leak.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Liquid Hydrogen Spilling in the Confined Cabin with Air Supplying and Vent

Shu

Liang

Lei³

et al. 2023

J. Phys.: Conf. Ser.

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The purpose of this work is to research the spill and diffusion characteristics of liquid hydrogen in confined cabin with air supplying and vent. The spill and diffusion behavior of liquid hydrogen in the confined cabin with air supplying and vent was simulated using Fluent software. The feasibility of the model was verified by the experimental results. The research results show that the numerical simulation model can simulate to predict the diffusion process of liquid hydrogen well and has application value for engineering. The diffusion cloud after the spill of liquid hydrogen is gathering at the top and slowly spread to the surrounding which is different from the open environment. The process of liquid hydrogen spill can be divided into three stages, among which the concentration of cloud clusters changes sharply in the spilling stage. Low wind speed can affect the inclination angle of the diffuse cloud, and it is concluded that wind speed is also the main factor affecting the movement of the diffusion cloud. The research results are expected to provide a reference for standard formulation and design of liquid hydrogen applications.

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Assessment of an accidental hydrogen leak from a vehicle tank in a confined space

Cited by 25 publications

References 20 publications

Identification of root cause of fatal confined space incidents in Malaysia and strategies for prevention

Identification of root cause of fatal confined space incidents in Malaysia and strategies for prevention

An Exploration of Safety Measures in Hydrogen Refueling Stations: Delving into Hydrogen Equipment and Technical Performance

Numerical Simulation of Liquid Hydrogen Spilling in the Confined Cabin with Air Supplying and Vent

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