Safety issues in hydrogen transportation

Ubong, Etim U.

doi:10.1109/eicemc.2003.1247916

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…The wide range of flammability limits for hydrogen (4-75 vol%) in air and its low ignition energy (0.02 MJ)-an order of magnitude lower than gasoline or methane-would seem to confirm that it is a dangerous fuel. However, a gasoline (or diesel) fire causes more severe radiant heat damage than a hydrogen fire [3]. Also, the lower buoyancy, high auto ignition temperature, high specific heat, and diffusivity tend to increase the safety of hydrogen [4].…”

Section: The Hydrofueler Projectmentioning

confidence: 99%

Security and tolerable risk for hydrogen service stations

Schjølberg

Østdahl

2008

Technology in Society

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Section: The Hydrofueler Projectmentioning

confidence: 99%

Security and tolerable risk for hydrogen service stations

Schjølberg

Østdahl

2008

Technology in Society

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“…The amount of fuel poured in is 1200 ± 5 ml. The tank has a heater (10) and a viscometer (11) built-in to maintain the fuel temperature at a given level. The fuel circulates in the system using a centrifugal pump (6).…”

Section: Ucj № 9 / Vol 87mentioning

confidence: 99%

“…The completion of the process of fuel satu ration with hydrogen was determined by the time of dissolution of the last dose in a volume of 10 ± 0.1 ml using a temperature sensor (7). The viscosity of the fuel is measured using a viscometer (11).…”

Section: Ucj № 9 / Vol 87mentioning

confidence: 99%

“…The indicated value of the hydrogen concentration in the air in front of the cylinders of an internal combustion engine is rather difficult to ensure. It is easier to meet this requirement upon preliminary saturation of liquid fuel with hydrogen [11,12]. However, in any case, it is necessary to equip fuel enrichment systems with hydrogen and mobile H 2 sensors operating in the concentration range of up to 1%.The safety of the internal combustion engine depends on the physical properties of fuel-hydrogen mixtures.…”

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confidence: 99%

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Research of the Physical Properties of Diesel Fuel-Hydrogen Mixtures

et al. 2021

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The change in the viscosity of diesel fuel with dissolved hydrogen, the rate of dissolution of hydrogen in the diesel fuel, and the hydrogen diffusion coefficient in diesel fuel were experimentally determined. Dissolving hydrogen in liquid fuel changes its physical-chemical properties. It has been found that the viscosity and density of diesel fuel change little when it is saturated with hydrogen. The flashpoint in a closed crucible is reduced by 3–4 °C. The rate of dissolution of hydrogen in diesel fuel has been investigated. It has been found that the diffusion coefficient of hydrogen in diesel fuel depends significantly on the initial concentration of H2 in the fuel. The liquid fuel is advisable to supply with saturated hydrogen for the safety of the heat engine operation. The design of the hydrogen fuel saturation system with a special hydrogen sensor based on the MQ-8 sensor was proposed. The system of protection of the research stand from unauthorized emissions of hydrogen into the environment has been worked out. The protection ensures the shutdown of the stand equipment when the hydrogen concentration in the zone of its generation and supply to the fuel is at the level of 1%.

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Safety of compressed hydrogen fuel tanks: Leakage from stationary vehicles

Utgikar

Thiesen

2005

Technology in Society

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Safety issues in hydrogen transportation

Cited by 4 publications

References 3 publications

Security and tolerable risk for hydrogen service stations

Security and tolerable risk for hydrogen service stations

Research of the Physical Properties of Diesel Fuel-Hydrogen Mixtures

Safety of compressed hydrogen fuel tanks: Leakage from stationary vehicles

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