General Theme #1 – ENERGY & INFRASTRUCTURE SAFETY

Topic #1 – Infrastructure

• Storage, Distribution and Transport
• Impact of Venting and Flaring
• Hydrogen Blending in Existing Infrastructure
• Future Infrastructure Projections
• Hydrogen losses from infrastructure

Topic #2 – Hydrogen Production

• Production at large scale
• Electrolyser Safety
• Purification and Intermediate Storage
• Hydrogen/Oxygen Co-production Plants 

Topic #3 – Storage Systems

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

Topic #4 – Hydrogen for Heat 

• Hydrogen for Heat Applications including Hydrogen Blends
• Fuel Cell and Gas Turbine
• Distribution Network
• Appliance Development (burners, cookers, boilers)

Topic #5 –  Industry

• Oil Refineries
• Nuclear Industry
• Chemical, Steel and Refining Plants
• Mining Industry
• Semiconductor/Electronic Industries
• Other

General Theme #2 – MOBILITY AND TRANSPORT SAFETY

Topic #6 – Hydrogen Vehicles and Related Fuelling Infrastructure

• Hydrogen Refuelling Stations
• Indoor/Outdoor Fuelling
• Fuelling Protocols
• Mixed/Blended Fuels of Natural Gas and Hydrogen
• Material Handling and Operations in Warehouses
• Vehicle Operations in Tunnels and Garages
• Vehicle Maintenance and Repair Facilities

Topic #7 – Emerging Mobility Markets

• Heavy-Duty Road Vehicles (buses and trucks)
• Rail (freight and passenger trains)
• Aviation Spacecrafts
• Spacecrafts-Unmanned Aerial Vehicles
• Maritime (port side, container ships, cruise lines, ferries)

Topic #8 – Hydrogen Batch Transport & Distribution

•  Liquid Hydrogen and Compressed Gaseous Hydrogen Road and Rail Trailers
• Innovative Designs
• Transfer Protocols and Purging
• Liquid Hydrogen Ship Transfer
• Associated Regulation Codes and Standards and Risk Assessment

 General Theme #3 – CROSS CUTTING TOPICS

Topic #9 – Behaviour of Gaseous and Liquid Hydrogen

• Release and Mixing
• Jets
• Ignition and Autoignition
• Deflagration, Detonation, and Deflagration to Detonation Transition 
• Storage Tank ruptures including BLEVES
• Fires  
• Rapid Phase Transitions (RPTs)
• Blast Waves
• Hydrogen Blends (H2/NG, H2/CH4, H2/NH3, …)

Topic #10 – 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
• Effect of Spatial Congestion and Confinement on Deflagration–Detonation Transitions

Topic #11 – Materials and Components

• Metallic and Non-Metallic Material Safety
•  Embrittlement
• Permeation/Blistering
• Liquid Hydrogen Storage
• Materials for Specific Needs (e.g. for high salinity, desert, cryogenic environments, for storage, for purification, …)

Topic #12 – 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, use of firewalls)
• Safety Solutions and Implementation to Hydrogen Technologies
• Methodology for including physical effects into Risk Assessment
• Mitigation Technology and Safety Equipment

Topic #13 – Regulations, Codes and Standards (RCS)

• Aspects of International, National, Regional and Organisation based RCS
• Pre-Normative Research (PNR) (needs, priorities, approaches, incorporation of QRA)
• 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
• Hydrogen Safety in the Lab
• ATEX Directive.

Topic #14 – Education, Training and Communication

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

Topic #15 – Artificial Intelligence and Digital Tools for Hydrogen Safety

• Artificial Intelligence, Machine Learning and Data-Driven Models for Hydrogen Safety
• AI-assisted Risk Assessment, Quantitative Risk Analysis and Decision Support
• Digital Twins for Hydrogen Systems, Infrastructure and Refuelling Applications
• AI for Accident Scenario Identification, Hazard Detection and Early Warning
• Use of AI in Modelling for Hydrogen Releases, Fires and Explosions
• Sensor Data, Monitoring and Predictive Maintenance for Hydrogen Technologies
• AI-supported Safety Management, Emergency Response and Incident Analysis
• Validation, Verification, Uncertainty Quantification and Explainability of AI Models
• AI-based Training, Education and Communication Tools for Hydrogen Safety

 General Theme #4 – OTHER

Topic #16 – Insurance

Topic #17 – Case Studies

Topic #18 – Safety & Terminology

Topic #19 –  Demonstration Projects

Topic #20 – Stakeholder Management