ICHS 2023 - The H2 Safety Event

Themes and Topics


Safety in Hydrogen Infrastructure

  • Production at large scale
  • Storage, distribution and transport
  • Repurposing existing infrastructure for H2
  • Future infrastructure projections and safety implications

Power to Hydrogen and Hydrogen to Power Related Safety Issues

  • Production at large scale
  • Electrolyser Safety
  • Purification and Intermediate Storage
  • Fuel Cell and Gas Turbine Safety
  • Safety of coproduction of H2/O2 plants

Energy Storage Systems

  • Pressurised Storage
  • Liquid Hydrogen Storage
  • Materials-based Storage
  • Salt Cavern Storage
  • Gas Grid Scale storage
  • Liquid Organic Hydrogen Carriers (LOHCs), Ammonia and Cracked Ammonia
  • Innovative Storage Concepts

Hydrogen for Heat

  • Hydrogen for Heat applications including hydrogen blends with NG
  • Distribution Network Safety
  • Appliance Development (burners, cookers, boilers, fires) and Hydrogen Detection in Domestic Setting

Hydrogen Safety Aspects in Other Applications / Industries / Technologies

  • Chemical and Steel Plants
  • Oil Refinery
  • Nuclear
  • Defence Applications
  • Mining Industry (refuelling stations, interface and mining vehicles)
  • Semiconductor/Electronic Industries, Electrical Generators, Neutron Beams and other Fundamental Experiments

Hydrogen Vehicles (Cars and Buses) and Related Fuelling Infrastructure

  • Hydrogen Refuelling Stations including Safe Design
  • Indoor/Outdoor Fuelling
  • Fuelling Protocols: On-Board Storage upset Conditions: Co-Location with Other Fuels
  • Mixed/Blended Fuels of Natural Gas and Hydrogen
  • Material Handling and Operations in Warehouses
  • Vehicle Operation in Tunnels and Garages
  • Vehicle Maintenance and Repair Facilities

Safety in Emerging Mobility Markets – Infrastructure, Refuelling and Operation

  • Heavy-Duty Road Vehicles (buses and trucks)
  • Rail
  • Aviation (drones and planes)
  • Spacecrafts-Unmanned Aerial Vehicles
  • Mobile Refuelling for Drone & Flight Applications
  • Maritime (port side, container ships, cruise lines, ferries)

Safety Issues of Hydrogen Batch Transport & Distribution

  • Safety of Liquid Hydrogen (LH2) and Compressed Gaseous Hydrogen (CGH2) Road and Rail Trailers
  • Innovative Designs
  • Safe Transfer Protocols, Purging etc
  • Safety of Ship Transport of Hydrogen, in particular LH2 and related transfer
  • Associated Regulation Codes and Standards and Risk Assessment

 Behaviour of Gaseous and Liquid Hydrogen (LH2)

  • Release and Mixing
  • Jets (properties, phase changes, impingement, wall attached)
  • Ignition and Autoignition
  • Combustion
  • Fires
  • Deflagration, Detonation, and Deflagration to Detonation Transition
  • Rapid Phase Transitions (RPTs) and BLEVE
  • Blast Waves
  • Hydrogen Blends (H2/NG, H2/CH4, H2/NH3,…)

Physical Effects

  • Thermal Effects
  • Overpressure Effects
  • Structural Response
  • Projectile Effects
  • Effects on Humans and Environments
  • Effect of ventilation and water sprays on mixing and combustion
  • Effect of suppressants on ignition, fire and transient combustion
  • Spatial congestion and confinement effects on deflagration–detonation transitions

Hydrogen Effects on Materials and Components

  • Metallic and non-Metallic Material Safety
  • Embitterment
  • Permeation/blistering
  • Liquid Hydrogen Storage
  • Materials Selection for Specific Environments (e.g. high salinity, desert, cryogenic etc.)
  • Materials-based hydrogen systems:  storage (metal hydrides/sorption), purification (PSA, membranes), etc

Risk Assessment and Safety Management

  • Hazards and Vulnerabilities Identification and Analysis
  • Development and Use of Specific Accident Databases
  • Risk Assessment (cost-benefit analysis, safety perception, acceptance and harm criteria, uncertainties, decision making, risk awareness, risk perception, human factor)
  • Risk Management and Safety Culture (including project safety plans for publicly funded R&D and demonstrations)
  • Comparative Risk (i.e. hydrogen vs. conventional fuels)
  • Inherent Safety (substitution, moderation and simplification)
  • Accounting for Prevention and Mitigation (active, passive, sensors, safety distances)
  • Safety Solutions and Implementation to Hydrogen Technologies
  • Methodology for including physical effects into Risk Assessment
  • Mitigation Technology and Safety Equipment

Regulations, Codes and Standards (RCS)

  • Aspects of International, National, Regional and Organisation based RCS
  • Pre-Normative Research (PNR) (needs, priorities, approaches, incorporation of QRA)
  • Experience / Lessons Learned from Bringing PNR Results into Standard Technical Committees
  • Post-Normative Experience (case studies)
  • Comparison/Compatibility with Other Fuels
  • Safety Regulations for Hydrogen Carriers in Regional/International Trade (e.g. maritime, rail, pipelines)
  • Permitting of Large Scale Applications

Education and Training

  • First and Second Responders Training
  • Operator Training
  • Train the Trainers
  • Academic Education
  • Best Practice for Application Specific Training (including technician training for gas appliance, for stationary facilities and garages maintaining H2 vehicles)

Communicating Safety

  • Stakeholder Communication (policy, financial authorities and communities)
  • Public Perception and Acceptance
  • Risk Perception and Awareness and Trust
  • Safety Databases and Lessons – Learned
  • Lessons from Communications about Past and Recent Incidents, Accidents and Near Misses
  • Social Media–Winning Hearts & Minds
  • Accreditation of Communications
  • Informing Key Stakeholders how can Safety Help to Shape Policy
  • Embedding Safety to Win Social Acceptance Gas Safety at the Domestic / Industrial / Transport End User (the necessary changes to the end user appliances
  • Insurance
  • Case Studies
  • Safety & Terminology
  • Showcase of Useful Technologies
  • Stakeholder Management