Hydrogen fuel cell vehicles fire spread in semi open car parks


Riba Clascà, Francesc Gerard  


Current guidelines on the spread of fires between vehicles, such as that of the CTICM (Centro Technique Industriel de la Construction Métallique), assume that the speed of fire spread from one car to another is approximately 12 minutes and that only 3 or 4 vehicles are on fire at the same time. However, recent fire incidents involving vehicles have reported very different numbers, with as many as 30 cars burning in the same time.
The way modern cars burn is very different from the way old ones, as many more plastic materials are used to reduce weight and improve overall performance. In addition, alternative fuels such as batteries or hydrogen are beginning to be more popular. Hydrogen tanks in vehicles can make a huge difference in the behavior of a fire in a car park.
The objective of this thesis is to develop a numerical model capable of simulating the spread of fire between different HFCVs. The scenario in which the vehicles are studied is a car park based on an existing real structure.
The main computer programs used to develop the CFD models are Fire Dynamics Simulator (FDS), version 6.7.4 and Pyross 2020.
The studied scenario consists of three hydrogen vehicles located in a semi-open car park in which one of the vehicles begins to burn. Variations in the diameter of the evacuation duct of the TPRD studied.



Espasa Sempere, Luisa 
Markert, Frank  


IQS SE - Undergraduate Program in Industrial Engineering