Study on the Explosion of the Hydrogen Fuel Tank of Fuel Cell Electric Vehicles in Semi-Enclosed Spaces

The rise in hydrogen fuel cell electric vehicles (FCEVs) is expected to pose a variety of hazards on the road. Vehicles using could cause significant damage, owing vapor cloud explosions, jet fires caused by leakage, or tank explosions. This risk further increase semi-enclosed spaces, such as underground parking lots and road tunnels. Therefore, it necessary study fire safety spaces. In this study, an experiment explosion was performed. addition, CFD numerical model verified experimental results, damaging effect due pressure propagation during explosions tunnels analyzed analysis. From exploded at about 80 Mpa, maximum incident generated 267 kPa distance 1.9 m. As result analysis based limit that can serious injury tunnel lot up 20 m from point explosion.