Hydrogen energy applications often require that systems are used indoors (e.g., industrial trucks for materials handling in a warehouse facility, fuel cells located in a room, or hydrogen stored and distributed from a gas cabinet). It may also be necessary or desirable to locate some hydrogen system components/equipment inside indoor or outdoor enclosures for security or safety reasons, to isolate them from the end-user and the public, or from weather conditions. Using of hydrogen in confined environments requires detailed assessments of hazards and associated risks, including potential risk prevention and mitigation features. The release of hydrogen can potentially lead to the accumulation of hydrogen and the formation of a flammable hydrogen-air mixture, or can result in jet-fires. Within Hyindoor European Project, carried out for the EU Fuel Cells and Hydrogen Joint Undertaking safety design guidelines and engineering tools have been developed to prevent and mitigate hazardous consequences of hydrogen release in confined environments. Three main areas are considered; Hydrogen release conditions and accumulation, vented deflagrations, jet fires and including under-ventilated flame regimes (e.g., extinguishment or oscillating flames and steady burns). Potential RCS recommendations are also identified.

L'HOSTIS Beatrice;  HOUSSIN-AGBOMSON Deborah;  JALLAIS Simon;  VYAZMINA Elena;  DANG-NHU Guy;  BERNARD-MICHEL Gilles;  KUZNETSOV Mikhail;  MOLKOV Vladimir;  CHERNYAVSKIY Boris;  SHENTSOV Volodymir;  MAKAROV Dmitriy;  DEY Randy;  HOOKER Philip;  BARALDI Daniele;  WEIDNER RONNEFELD Eveline;  MELIDEO Daniele;  PALMISANO Valerio;  VENETSANOS Alexander;  DER KINDEREN Jan; 

2015-11-09

Technova Inc. - HySAFE

JRC95388

www.ichs2015.com,    https://publications.jrc.ec.europa.eu/repository/handle/JRC95388,