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Diffusion and Ignition Behavior on the Assumption of Hydrogen Leakage from a Hydrogen-Fueled Vehicle
Technical Paper
2007-01-0428
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
hydrogen was leaked from the underfloor at a flow rate exceeding 131 NL/min (11.8 g/min), which is the allowable fuel leakage rate at the time of a collision of compressed hydrogen vehicles in Japan, and the resulting distribution of concentration in the engine compartment and the dispersion after stoppage of the leak were investigated. Furthermore, ignition tests were also conducted and the impact on the surroundings (mainly on human bodies) was investigated to verify the safety of the allowable leakage rate. The tests clarified that if hydrogen leaks from the underfloor at a flow rate of 1000 NL/min (89.9 g/min) and is ignited in the engine compartment, people around the vehicle will not be seriously injure. Therefore, it can be said that a flow rate of 131 NL/min (11.8 g/min), the allowable fuel leakage rate at the time of a collision of compressed hydrogen vehicles in Japan, assures a sufficient level of safety.
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Citation
Maeda, Y., Itoi, H., Tamura, Y., Suzuki, J. et al., "Diffusion and Ignition Behavior on the Assumption of Hydrogen Leakage from a Hydrogen-Fueled Vehicle," SAE Technical Paper 2007-01-0428, 2007, https://doi.org/10.4271/2007-01-0428.Also In
SAE 2007 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V116-6; Published: 2008-08-15
Number: V116-6; Published: 2008-08-15
References
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