EUROPEAN PRE-NORMATIVE RESEARCH PROJECT ON INHERENTLY SAFER USE OF HYDROGEN AND FUEL CELL INDOORS: KNOWLEDGE GAPS AND PRIORITIES

To develop safety strategies for the use of hydroge n indoors, the HyIndoor project is studying the behavior of a hydrogen release, deflagration or non -premixed flame in an enclosed space such as a fuel cell or its cabinet, a room, or a warehouse. The paper proposes a safety approach based on safet y obj ctives that can be used to take various scenarios of hydrogen leaks into account for the sa f design of Hydrogen and Fuel Cell (HFC) early market applications. Knowledge gaps on current engi neer ng models and unknown influence of specific parameters were identified and prioritized , thereby re-focusing the objectives of the project test campaign and numerical simulations. This appro ach will enable the improvement of the specification of openings and use of hydrogen senso rs f r enclosed spaces. The results will be disseminated to all stakeholders, including hydroge n industry and RCS bodies.