Slide no' 1

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• NoE HySafe
• Thomas JORDAN, Forschungszentrum Karlsruhe
• Samira CHELHAOUI, INERIS
• Stewart MILES, HSE/HSL

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Summary of the NoE Objectives

• (DoW)..to integrate and harmonise the fragmented
  research base by
• Promotion of fundamental research necessary to
  address hydrogen safety issues.
• To provide contributions based on safety and risk
  studies to EU-legal requirements, standards and
  codes of practice by
• Pre-normative research in identified critical
  areas
• Development and implementation of a
  performance-based approach to hydrogen safety
  engineering
• Use of results from detailed safety and risk
  assessment studies for different hydrogen
  applications as input to development of legal
  requirements, standards and codes of practice
• Extracting net outcomes from safety and risk
  assessment studies, e.g. deterministic Safety
  Distances
• Development and validation of hydrogen accident
  prevention and mitigation techniques.

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NoE Summary

• Current scientific and technical activities
• Pre-normative research task
• InsHyDe
• Bonfire test standards

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NoE Summary

• Current scientific and technical activities
• Safety-related tasks
• IgnHyd
• Hazard Zoning
• RA of Fuelling Stations

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NoE Activities in RCS

• HYSAFE WP 16
• Coordinator INERIS (France)
• Partners Air Liquide (FR), BAM (DE), BMW (Ge.),
  BRE (UK), CEA (FR), HSL (UK), JRC (NL),
  Norsk-Hydro (NO), Risoe (DK), Volvo (SW)

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NoE Activities in RCS

• HYSAFE WP 16
• Objectives
• ensure that consensual knowledge on hydrogen
  safety is adequately taken into account in the
  process of building new standards and regulatory
  requirements related to hydrogen technologies.
• promote consensus within EC countries on safety
  related standardisation / regulatory aspects in
  order to strengthen the interest of EC countries
  when voting take place at ISO, IEC, UN or other
  relevant organisations (CEN, IPHE, HFP),
• if requested by other projects (HYAPPROVAL,
  HYCOM, HYGUIDE,), review guidelines / safety
  reports produced under these projects and forward
  them our opinion about their content,
• identify knowledge gaps that would require
  further studies prior to standardisation or the
  development of regulatory requirements.

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NoE Activities in RCS

• HYSAFE WP 16 is an interface
• ISO TC 197 and appropriate TC22 SC25 new working
  group dedicated to review existing standards
  regarding their suitability for hydrogen,
• CEN ad-hoc group on review of existing standards
  and identification of gaps,
• European Hydrogen and Fuel Cell Technology
  Platform (Informal group on regulations, codes
  and standards)
• HarmonHy project to develop collaboration with
  HYSAFE on RCS
• Communication
• Pursue official links with ISO and IEC
  organisations,
• Communication within HYSAFE partnership through
  our webpage related to RCS,
• Make visible WP16 activity to external
  stakeholders trough our website.

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NoE Activities in RCS

• HYSAFE WP 16
• Main actions
• providing HySafe co-ordinated action to RCS
  groups direct inputs or edition of Position
  papers regarding documents produced by RCS
  groups,
• identification of safety related gaps,
• providing, when available, scientific inputs to
  RCS groups,
• position on draft documents or on proposals for
  new standardisation work items, ,
• identification of priorities in pre-normative
  topics and feed-back RCS groups with data
  produced,
• ...

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NoE Activities in RCS

• HYSAFE WP 16 RCS delegates

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Presentation Template/32. Traffic light
analysis (max 2-3 slides)
Working Group 1 H2, Vehicle and surroundings
safety in normal use
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Traffic light analysis
Working Group 2 Vehicle and surroundings safety
in crash situations and defects, damages
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Projects - InsHyDe

• InsHyDe
• Context
• Large leaks caused by major system failure very
  low probability gt zoning, detection, prevention,
  passive building design
• Minor leaks (lt 1 g/sec) more foreseeable gt
  risks in confinement ?
• Objectives
• Investigation of realistic non-catastrophic
  releases in (partially) confined areas
  dispersion behaviour, fire and explosion
  potentials, ignition
• Regulatory and standards framaework for indoor H2
  systems
• System risk assessment and basis for risk control
• Ventilation performance and layout
• Detection and Buildings (garages, tunnels, etc)
  layout
• Zone classification and choice of electrical
  equipment
• Best practices for scenario quantification and
  ventilation design / Input for standards for the
  safe use / storage of indoor hydrogen systems
  (e.g. garages)

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Projects - InsHyDe

• InsHyDe
• Dispersion simulations and experiments gt
  investigation of
• the hydrogen dispersion behaviour in quiet
  atmosphere for various leaking regimes (release
  rates lt 1 g/s)
• the ability of ventilation to control these leaks
  (reduction of ATEX)
• hydrogen sensors (response accuracy, response
  time, )
• Experiments performed at INERIS CEA facilities
• Pre-test calculations to better define the
  experimental scenario and the best appropriate
  position of the instrumentation (CFD modelling)

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Projects - InsHyDe

• InsHyDe
• Infrastructure

INERIS 100 m3 underground ventilated gallery
Ultrasonic sensor
Catalytic sensor
View of inside of CEA 100 m3 MISTRA facility with
position of instrumentation
INERIS measurement techniques
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Projects - InsHyDe

• InsHyDe
• On-going dispersion experiments test matrix

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Projects - InsHyDe

• InsHyDe
• Garage experiments INERIS-CEA collaboration
  (2006)

• to design a new facility to carry out test with
  vents, ventilation systems, and possibility to
  vary geometric configurations (roof)

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Projects - HyTunnel

• HyTunnel
• Current safety requirements for road tunnels
  consider air quality, fire and smoke spread
• Natural and/or forced ventilation
• CO, video etc detection
• Means of escape and safety refuges
• But, do H2 vehicles pose additional hazards?
• If so, then need to
• Update design guidance for new tunnels
• Establish improvents to be made on existing
  tunnels
• Ammend regulations for old and new tunnels

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Projects - HyTunnel

• HyTunnel cont.
• Project objectives
• Review existing design guidance and regulations
• Identify critical accident and H2 release
  scanerios
• Review relevant experimental and modelling work
• Undertake experiments and/or modelling exercises
• Identify changes to design and regulations that
  may be required to safely accommodate H2 vehicles

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Projects - HyTunnel

• HyTunnel cont.
• Some accident scenarios
• Collision or mechanical failure resulting in
  release of H2 and formation of explosive gas
  mixture
• Exposure of H2 storage cyclinders to thermal
  hazard from tunnel fire
• Some itigation measures
• Enhanced ventilation to prevent formation of
  explosure concentrations of H2
• Safe ignition of H2 gas mixtures before
  explosion can occur
• Water mist or sprinklers to reduce thermal
  exposure and restrict combustion

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Projects

• Bonfire test standards
• In cooperation with StorHy investigate the
  existing standards or proposals for an improved
  test
• Reasonible combination of performance based
  component and system level tests
• More detailed information derived from more
  appropriate measurement equipment of tests

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Current WP work

• IgnHyde Development of an improved probabilistic
  ignition model, needed for all RAs.
• Hazard Zoning Evaluation of the transferrability
  of the HZ concept to hydrogen. Main activities
  related to IEC (electric installations,) but
  also closely related to the safety distance
  concept.
• RA of Fuelling Stations
• 3 basic designs (determined by HyApproval) will
  be analysed by standard RA methodology in WP12.

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Proposals

• Other RCS items
• Home fuelling
• Fuelling interface
• H2 sensors and small leak detection systems
• Underground storage
• General recommendations via a general performance
  based hydrogen safety standard
• RA
• Potential pre-normative research needs
• Small leak detection
• Automated emergency intervention
• Safety/ Clearance distances
• Thermal and pressure effect of fires/explosion
• FA, DDT and interference with mitigation measures