Simulation and analysis of hydrogen leakage and explosion behaviors in various compartments on a hydrogen fuel cell ship

Mao, Xiaobing; Ying, Rushun; Yuan, Yupeng; Li, Feng; Shen, Boyang

doi:10.1016/j.ijhydene.2020.11.158

Cited by 106 publications

(13 citation statements)

References 15 publications

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“…All fuels must comply with EU regulations, such as keeping containers in well-aired locations and away from ignition sources [2]. Hydrogen has a high flammability range, between 4% and 77% in air [51], meaning that it can be explosive [52]. Whilst this is manageable, additional rules and regulations may be required for hydrogen storage, potentially resulting in additional costs and increased size requirements.…”

Section: Hydrogenmentioning

confidence: 99%

Route to zero emission shipping: Hydrogen, ammonia or methanol?

McKinlay

Turnock

Hudson

2021

International Journal of Hydrogen Energy

167

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Section: Hydrogenmentioning

confidence: 99%

Route to zero emission shipping: Hydrogen, ammonia or methanol?

McKinlay

Turnock

Hudson

2021

International Journal of Hydrogen Energy

167

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“…CH 3 COCH 3 and NO 2 act as an electron donor and electron acceptor, respectively, for WS 2 . Late et al reported that field-effect transistors (FETs) fabricated with n-type semiconducting MoS 2 nanosheets can be used as NH 3 and NO 2 sensors [2]. The gas-sensing ability of these nanosheets was also attributed to the charge transfer between MoS 2 and the adsorbed molecules, which results in a change in the electrical resistance of MoS 2 .…”

Section: Introductionmentioning

confidence: 99%

Correlation between charge density wave phase transition and hydrogen adsorption in 1T-TaS₂ thin film devices

et al. 2023

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Thin films of tantalum disulfide in the 1T-polytype structural phase (1T-TaS2), a type of metallic two-dimensional (2D) transition metal dichalcogenides (TMDs), are reactive to H2 gas. Interestingly, the electrical resistance of the 1T-TaS2 thin film in the incommensurate charge–density wave (ICCDW) phase with a metallic state decreases when H2 gas is adsorbed on the 1T-TaS2 film and returns to its initial value upon desorption. In contrast, the electrical resistance of the 1T-TaS2 thin film in the nearly commensurate CDW (NCCDW) phase, which has a slight band overlap or small bandgap, does not change upon H2 gas adsorption/desorption. This difference in H2 gas reactivity is a result of differences in the electronic structures of the two 1T-TaS2 phases, namely, the ICCDW and NCCDW phases. Our experimental results indicate advantages of the use of TaS2 for H2 gas sensing compared to other semiconductor 2D-TMDs such as MoS2 and WS2, as a theoretical prediction that the metallic TaS2 captures gas molecules more easily owing to a stronger positive charge at Ta than those in Mo or W of dichalcogenides. Notably, this study is the first example of H2 gas sensing using 1T-TaS2 thin films and demonstrates the possibility of controlling the reactivity to gas by changing the electronic structure via CDW phase transitions.

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“…The ship has an airtight structure; therefore, hydrogen cannot be easily discharged outside. The risk is considerably greater at a hydrogen refueling station when an accident such as an explosion occurs [12,17]. Despite these risks, few studies have focused on hydrogen diffusion behavior for hydrogen ships.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of the Effects of Ship Motion on Hydrogen Release and Dispersion in an Enclosed Area

Kim

Hwang

2022

Applied Sciences

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Hydrogen is an alternative to conventional heavy marine fuel oil following the initial strategy of the International Maritime Organization (IMO) for reducing greenhouse gas emissions. Although hydrogen energy has many advantages (zero-emission, high efficiency, and low noise), it has considerable fire and explosion risks due to its thermal and chemical characteristics (wide flammable concentration range and low ignition energy). Thus, safety is a key concern related to the use of hydrogen. Whereas most previous studies focused on the terrestrial environment, we aim to analyze the effects of the ship’s motion on hydrogen dispersion (using commercial FLUENT code) in an enclosed area. When compared to the steady state, our results revealed that hydrogen reached specific sensors in 63% and 52% less time depending on vessel motion type and direction. Since ships carry and use a large amount of hydrogen as a power source, the risk of hydrogen leakage from collision or damage necessitates studying the correspondence between leakage, diffusion, and motion characteristics of the ship to position the sensor correctly.

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Simulation and analysis of hydrogen leakage and explosion behaviors in various compartments on a hydrogen fuel cell ship

Cited by 106 publications

References 15 publications

Route to zero emission shipping: Hydrogen, ammonia or methanol?

Route to zero emission shipping: Hydrogen, ammonia or methanol?

Correlation between charge density wave phase transition and hydrogen adsorption in 1T-TaS₂ thin film devices

Numerical Analysis of the Effects of Ship Motion on Hydrogen Release and Dispersion in an Enclosed Area

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Simulation and analysis of hydrogen leakage and explosion behaviors in various compartments on a hydrogen fuel cell ship

Cited by 106 publications

References 15 publications

Route to zero emission shipping: Hydrogen, ammonia or methanol?

Route to zero emission shipping: Hydrogen, ammonia or methanol?

Correlation between charge density wave phase transition and hydrogen adsorption in 1T-TaS2 thin film devices

Numerical Analysis of the Effects of Ship Motion on Hydrogen Release and Dispersion in an Enclosed Area

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Correlation between charge density wave phase transition and hydrogen adsorption in 1T-TaS₂ thin film devices