Ineris' contribution to GRHYD
The institute, a risks data producer, was able to use its knowledge to assist with the safety aspects of batch 1 of the project, involving the production, storage, and post-injection (or the post-mixing) phases. The Institute first participated in a preliminary risk analysis of the entire project: identification and assessment of risk scenarios. Ineris' know how in relation to accidental hazards (fire, release of toxic substances, explosion, etc.) allowed it to evaluate, through digital simulation, the effects of several phenomena potentially resulting from the use of hydrogen:
• Study of hydrogen discharges - dispersion in open fields and in a confined environment;
• Study of the effects of excess pressure associated with the ignition of explosive environments (ATEX);
• Assessment of the effects of excess pressure associated with breaking points under pressure;
• Study of the effects of these explosions on staff and structures.
On the basis of these works, the Institute's teams worked on developing a Risk Control Measures (MMR) strategy, defining the appropriate safety devices and means of protection and detection. The Institute simultaneously carried out pre-normative appraisals, on procedures for the standardization of safety procedures, and on the necessity to adapt regulations to the specific safety requirements of the hydrogen sector.
