1 PRESLHY Project Review Meeting, 9 September 2019, Brussels, Belgium

Pre-normative REsearch for Safe use of Liquid HYdrogen

WP2 – Technical strategy and State of the Art

Review Meeting – S. Jallais, L. Bernard (AL)FCH JU, Brussels, Belgium, 9 September 2019

2 PRESLHY Project Review Meeting, 9 September 2019, Brussels, Belgium

Content

▪ Objectives

▪ Deliverables

▪ Justification of the use of resources

▪ Delays and deviations

▪ Ongoing activities and further planning

3 PRESLHY Project Review Meeting, 9 September 2019, Brussels, Belgium

WP2 Objectives

▪ Set the stage of the project with a LH2 State of the Art.

▪ Define the critical knowledge gaps for LH2 industrial use in

energy applications.

▪ Identify key scenarios and involved phenomena.

▪ Refine the experimental work program.

4 PRESLHY Project Review Meeting, 9 September 2019, Brussels, Belgium

WP2 Deliverables

Deliverable

numberDeliverable name Type

Lead

partner

Planned

month

Actual

month

D2.1 RCS Analysis Report HySafe 3 5

D2.2 State of the Art report Report AL 3 5

D2.3 LH2 installation description Report AL 4 6

D2.4LH2 Research Priorities

WorkshopOther HySafe 4 10

D2.5 PIRT Report AL 4 11

D2.6 Refined Work Program Report AL 5 15

Additional deliverable : D2.7 Consequence analysis

Data are still being collected.

Should be presented at the meeting in Buxton in November.

5 PRESLHY Project Review Meeting, 9 September 2019, Brussels, Belgium

D2.1 RCS analysis

▪ Review and analysis of:

− current Regulations, Code and Standards regarding LH2

(NFPA, PGS 35, …)

− Industry best practices for LH2 (EIGA, CGA, …),

− LH2 Accidentology,

− Standards and guidance related to LNG installations.

▪ Conclusion:

− Importance of science-based hazard distances,

− Necessary comparison with RCS requirements.

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D2.2 State of the art report

▪ Objective: identify knowledge gaps.

▪ Focus on LH2 experimental and modelling work on:

− Release/mixing phenomena,

− Ignition phenomena,

− Combustion phenomena.

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D2.3 LH2 installation description

▪ Description of LH2 installations for the whole logistic chain:

− Delivery infrastructure,

− Liquefaction plants,

− Stationary large storages,

− LH2 trailers,

− LH2 based fueling station.

8 PRESLHY Project Review Meeting, 9 September 2019, Brussels, Belgium

D2.5 PIRT analysis

▪ PIRT: Phenomena Identification and Ranking Table

▪ Systemic way of gathering information from experts on specific

subjects and ranking the importance of the information, in order to

determine what are the highest priorities for research and

development on that subject.

▪ 3 main sections (as WP)

− WP3 : Release and mixing phenomena (17 Physical Phenomena)

− WP4 : Ignition phenomena (9 PP)

− WP5 : Combustion phenomena (17 PP)

▪ List determined with PRESLHY partners and others persons

of good will (SH2IFT project mainly)

9 PRESLHY Project Review Meeting, 9 September 2019, Brussels, Belgium

D2.5 PIRT analysis

▪ For a list of LH2 physical phenomena, value between 1 and 5

regarding:

− General level of understanding,

− Level of maturity of engineering model,

− Level of maturity of CFD modelling,

− Availability of experimental data,

− Criticality for enabling LH2 in populated areas.

▪ Google Form questionnaire filled by 24 experts (8 nationalities)

▪ Calculation of a Knowledge Score (KS = a * b * c * d)

▪ Calculation of a Global Score (GS = KS / e (criticality) ⇒ Ranking

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D2.4 LH2 Research Priorities Workshop

▪ Objectives:

− Summarize LH2 state of the art,

− Derive research priorities for the safe use of LH2 in non-

industrial settings.

▪ Presentation of the results of the PIRT,

▪ Discussion around the PIRT results.

▪ Three debated topics:

− BLEVE,

− Material compatibility,

− Jet fires.

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D2.6 Refined work program

▪ Based on conclusions from state of the art and PIRT, need

for additional research on:

− Physics of liquid releases,

− Electrostatic ignition,

− LH2 / solid O2 ignition,

− Deflagration, detonation and flame acceleration in cold

conditions.

12 PRESLHY Project Review Meeting, 9 September 2019, Brussels, Belgium

D2.7 Consequence analysis benchmark

▪ Based on a typical LH2 filling station layout.

▪ Scenarios and consequence thresholds have been defined

▪ Participants will:

− Describe their model (EM, CFD),

− Calculate hazard distances for each scenarios.

▪ Objective: assess the level of consensus in the different

tools and methods used by risk and safety actors and

comparison with current RCS.

13 PRESLHY Project Review Meeting, 9 September 2019, Brussels, Belgium

Justification of the use of resources

for Air Liquide

WP1 WP2 WP3 WP4 WP5 WP6

Planned in DoA 0.5 3.5 2 2 4 4

Reported in first

period3 11 0.52 0.52 0.52 3

14 PRESLHY Project Review Meeting, 9 September 2019, Brussels, Belgium

Delays and deviations

▪ All objectives have been reached. However, the execution of

the tasks and the delivery of the reports was delayed, mainly

because of the late Kick-off Meeting and in consequence

also late LH2 Research Priorities Workshop.

▪ No impact on the project execution.

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Ongoing activities and further planning

▪ Consequence analysis:

− Waiting for additional contributions,

− Treatment and compilation of results,

− Presentation at the meeting in Buxton in November.