Citation

Tamura Y, Takeuchi M, Sato K. Trans. Soc. Automot. Eng. Jpn. 2013; 44(2): 599-604.

Copyright

(Copyright © 2013, Society of Automotive Engineers of Japan)

DOI

10.11351/jsaeronbun.44.599

PMID

unavailable

Abstract

We conducted an in-vehicle hydrogen leak test in a simulated post-side-crash condition to develop a hydrogen leak test method in enclosed spaces after collision testing. Hydrogen gas was released from three positions under the vehicle floor and one position inside the cabin at various flow rates not exceeding the allowable post-crash limit of 118 NL/min. The test results indicated that at a flow rate of 69 NL/min (half the allowable post-crash limit) the hydrogen concentration in the vehicle rose above 4% in some cases; that the hydrogen concentration decreased with the reduction of leakage nozzle diameter when the leakage position and the flow rate were kept constant; that the hydrogen concentration was varied by winds, suggesting the need to specify wind conditions for hydrogen leak tests.

Language: ja

Keywords

Crash Test，Fire Protection; Fire Safety; Fuel Cell; Hydrogen Tank; Leak