Research Priorities Workshop
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1 Research Priorities Workshop HSL, Buxton, UK, 18 September 2018 Pre-normative REsearch for Safe use of Liquid HYdrogen 1 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK
2 Objectives o Report on the initial state-of-the-art and knowledge gaps with priorities related to the envisaged use of LH2 o Execute adjusted experimental program addressing release, ignition and combustion phenomena with highest priorities o Document and publish detailed, aggregated and interpreted data in a FAIR way o Develop suitable models and engineering correlations and integrate them in a suitable open risk assessment toolkits o Provide enhanced recommendations for safe design and operations of LH2 technologies o Support international SDOs in updating of existing standards or developing of new international performance based and risk informed standards o Document and disseminate the enhanced state-of-the-art 2 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK
3 Governance FCH 2 JU General Assembly Coordination Committee Coordinator WP1 lead KIT Jordan Deputy KIT / Jedicke Advisory Board WP2 lead AL Jallais WP3 lead NCSRD Venetsanos WP4 lead HSL Hawksworth WP5 lead KIT Kuznetsov WP6 lead UU Molkov HYSAFE KIT AL UU NCSRD UWAR HSL INERIS PS 3 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK
4 General Approach WP1 Management WP2 - Technical Strategy & Evaluation Advisory Board WP3 Release & Mixing WP4 Ignition WP5 Combustio n WP6 Technical Implementation 4 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK
5 WP1 Management (KIT) T1.1 Contract & Financials T1.2 Internal Communication & Meetings WP2 - Technical Strategy & Evaluation (AL) T2.1 Scenario & Phenomena Ranking WP3 Release & Mixing (NCSRD) T3.1 - Theory & Analysis T3.2 Simulations T2.2 Analysis of Standards and Regulations WP4 Ignition (HSE) T4.1 - Theory & Analysis T4.2 Simulations T2.3 Refinement of Program WP5 Combustion (KIT) T5.1 - Theory & Analysis T5.2 Simulations Advisory Board (HySafe) International Alignement Technical Consultancy T3.3 Experiments T4.3 Experiments T5.3 Experiments International Communication T1.3 External Communication & Dissemination T6.1 Update of Handbook WP6 Technical Implementation (UU) T6.2 Implementation of Engineering Correlations T6.3 White papers International Standardisation Sustainable Exploitation 5 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK
6 Outreach PRESLHY Exploitation & Dissemination Activities Management (WP1) Implementation (WP6) Task 1.3 Website Data Manage ment Engineering tools Handbook Guidelines RCS Recommendations White Paper Task 6.6 Dissemination Conference 6 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK
7 External Networking HySafe (+ Hydrogen Safety Panel) RCS SCG JRC (HIAD) ISO TC 197 IEA HIA Task 37 US DOE WP1 Management (KIT) WP3 Release & Mixing (NCSRD) WP2 - Strategy (AL) WP4 Ignition (HSL) WP5 Combustion (KIT) PRESLHY Advisory Board WP6 Implementation (UU) 7 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK
8 Where is the Workshop? 8 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK
9 Original extended experimental program for WP3 Release & Mixing WP4 Ignition WP5 Combustion 10 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK
10 WP/ Phenomena/ Exp. Nr. Name WP3 Release and Mixing E3.1 Small Scale Multi-phase Release E3.2 Multi-phase High Pressure Release E3.3 Mid-Scale Multi-phase Release Issue Objective addressed/ Discharge Coefficients of Pressurized or LH2 Releases Charcterisation of Pressurised LH2 releases using characteristic pipe diameters Scale up of E3.1 wrt inventory, release rates & p LH2 jets/near field cloud dispersion E3.4 Pool of LH2 Evaporation a spill of LH2 11 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK To be investigated Variation of Range of variables pressure changes in bulk vessel temperature changes in a jet mass flow rate inertia (thrust), weight BOS images, laser diagnostics of jet principle structure, potential wall attachment/ impingement flash rate, momentum, velocity (Temperature pressure and concentration measurements in the near field from 0 to 1m), Cloud dispersion : temperature et concentration measurements (field instrumentation ~10 m) evaporation rate, cold gas mixing, Initial pressure bar (sub-critical & supercritical) Initial temperature K 4 Nozzle shape and crosssectional area Extraction point (high/gaseous-low/liquid & middle) Pressure, temperature, release type (length and diameter, orientation, thrust, discharge coefficient bar? (or highest pressure possible) orifice size, pressure 5/15 mm ; 0-10bar n of variations Partner/ Test facility WP3 Release (experiments set italic are in reserve because of budgetary constraints) E3.5 Rainout Tests LH2 Spray evaporation/ Pool formation Material of the ground solid-liquidporous O2 entrainment 1 m2 BOS imaging Initial temperature K 3 temperature profile in a gas 4 KIT/ HYKA-H8(He) DISCHA-facility in Test chamber V = dm³ 4 3 t.b.d. HSL/ Suitable vessel required/system required 3 x 3 INERIS/ 2 m3 vessel + 20 m line (1"ID)+discharge valve+calibrated orifice 3 KIT/ HYKA-H110(N2) concentr. profile in a gas evaporation rate, pool formation release height 3 HSL/ Pool facility release up/down/horiz ont. 3
11 WP/ Exp. Nr. Phenomena/ Name WP4 Ignition E4.1 General ignition Issue addressed/ Objective fundamental ignition parameters (MIE, AIT) To be investigated Variation of Range of variables influence of the adiabatic mixing temperature on the standard ignition parameters Concentration/temp 4 to 75% H2, -100 C to ambient (adiabatic mixing) n of variations 10 concentrati ons/temp Partner/ Test facility WP4 Ignition (experiments set italic are in reserve because of budgetary constraints) INERIS/ Available mixing nozzle E4.2 Electrostatic ignition in cold jet Pressurized LH2 jet Electrostatic measurements Initial pressure bar KIT/ HYKA-A1 "Paul Coupe"-Facility E4.3 Electrostatic ignition in cold plume Large scale cold cloud (combination with E3.5) Auto-ignition mechanism Initial temperature K BOS images of the jet Nozzle diameter H2 concentration profile Electrostatic measurements 6 HSL/ same as 3.5 Auto-ignition mechanism BOS images of the plumes E4.4 Ignition above pool H2 concentration profile a spill of LH2 ignition position Material of the ground solid-liquidporous KIT/ HYKA-H110 1 m2 BOS imaging Initial temperature K same as E3.4 temperature profile in a gas E4.5 Condensed phase ignition Ignition LH2/LOX/solid oxygen mixtures of Composition, energy and types of ignition source Produce under idealised conditions to understand sensitivity and conditions for ignition. HSL/ Blast test facility E4.6 Diffusion Pressure limits for Influence of temperature pipe ignition of spontaneous ignition diameter, length, orifice shape 12 CcH2 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK Initial p, T; pipe diameter, length, orifice shape, position of rupture membrane KIT or HSL
12 WP/ Exp. Nr. Phenomena/ Name Issue addressed/ Objective WP5 Combustion E5.1 Jet Fire Pressure and heat radiation effects E5.2 Flame acceleration and H2-air mixture in To be investigated Variation of Range of variables Effects of variations on heat flux and dosis, temperature, max pressure and rise rate Mass LH2 / initial pressure g/ bar n of variations Partner/ Test facility WP5 Combustion (experiments set italic are in reserve because of budgetary constraints) 3 KIT/ DISCHA in HYKA-V220 Measured with Nozzle diameter 1-4 mm 3 Q160 or H110 High speed video, BOS, pressure and Ignition location 0-2m 5 (similar E3.1) radiation probes (bolometers) Ignition delay times 0-1s 4 Critical conditions for FA H2 concentration H2 concentration KIT/ HYKA-H110 DDT at cryogenic temperatures obstructed tube 50 mm id Critical conditions for DDT Initial temperature K or HYKA-Q160 H2-air mixture in congested tube 0.7m id Flame dynamics Initial pressure 1-5 bar Schlieren images Pressure measurements Initial temperature H2 concentration E5.3 Flame propagation over a spill of LH2 3x9 m2 floor Flame dynamics (video), Pressure measurements, Temperature measurements, BOS images Initial temperature, Evaporation rate (derived in E3.4) KIT/ HYKA-H110 (same as E3.4 and E4.4) E5.4 BLEVE LH2 Max radius of fireball Mass LH g KIT/ HYKA-V220 Max. time of fireball ignition delay 0-2 s or HYKA-V3 Dynamics of fireball Initial pressure 1-10 bar Pressure outside E5.5 Flame propagation FA and DDT Flame dynamics (video), Pressure in obstructed with real measurements, Temperature 13 /confined cold geometrical measurements, BOS images cloud PRESLHY Research constraints Priorities Workshop, 18 September 2018, Buxton UK Congestion, confinement, inventory, ambient conditions tbd tbd HSL
13 14 PRESLHY Research Priorities Workshop, 18 September 2018, Buxton UK
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