WP/ Exp. Nr.Deliverable Nr.DeliverableCompletion / %Phenomena/ NameIssue addressed/ ObjectiveTo be investigatedVariation ofRange of variablesn of variationsPartner/ Test facility
E3.1a21D3.4100Small Scale Multi-phase ReleaseDischarge Coefficients of Pressurized or LH2 Releasespressure changes in bulk vessel BOS images, laser diagnostics of jet principle structure, potential wall attachment/ impingementInitial pressure Initial temperature Nozzle shape and cross-sectional area Extraction point (high/gaseous-low/liquid & middle)5-200 bar (sub-critical & supercritical) 80-300K4 x 4 x 4 x 3KIT/ HYKA-H8(He) DISCHA-facility in Test chamber V = 2.867 dm³
E3.1b21D3.440Small Scale Multi-phase ReleaseDischarge Coefficients of Pressurized or LH2 Releasespressure changes in bulk vessel BOS images, laser diagnostics of jet principle structure, potential wall attachment/ impingementInitial pressure; Initial temperature; Nozzle shape and cross-sectional area; Extraction point (high/gaseous-low/liquid & middle)1-5 bar (sub-critical) 25-80KKIT/ CRYOVESSEL
E3.422D3.540Pool of LH2Evaporation a spill of LH2 0.5 x 0.5 m2evaporation rate, cold gas mixing, O2 entrainment BOS imaging temperature profile in a gas concentr. profile in a gasMaterial of the ground; Initial temperature; Cross-windsolid-liquid-porous; 77-300K ; off/on3 3KIT Free Test Field
E3.523D3.690Rainout TestsLH2 Spray evaporation/ Pool formationevaporation rate, pool formationrelease height release up/down/horizont.3 3HSL/ Pool facility
E4.127D4.470General ignitionfundamental ignition parameters (MIE, AIT)influence of the adiabatic mixing temperature on the standard ignition parametersConcentration/temp4 to 75% H2, -100°C to ambient (adiabatic mixing)10 concentrations/tempINERIS/ Available mixing nozzle
E4.228D4.5100Electrostatic ignition in cold jetPressurized LH2 jetElectrostatic measurements Auto-ignition mechanism BOS images of the jet H2 concentration profileInitial pressure Initial temperature Nozzle diameter0-200 bar 33-200KKIT/ HYKA-A1 "Paul Coupe"-Facility
E4.329D4.690Electrostatic ignition in cold plumeLarge scale cold cloud (combination with E3.5)Electrostatic measurements Auto-ignition mechanism BOS images of the plumes H2 concentration profile6HSL/ same as 3.5
E4.430D4.740Ignition above poola spill of LH2 0.5 x 0.5 m2ignition position BOS imaging temperature profile in a gasMaterial of the ground Initial temperaturesolid-liquid-porous 77-300KKIT/ HYKA-H110 same as E3.4
E4.531D4.840Condensed phase ignitionIgnition of LH2/LOX/solid oxygen mixturesComposition, energy and types of ignition sourceProduce under idealised conditions to understand sensitivity and conditions for ignition.HSL/ Blast test facility
E5.135D5.490Jet FirePressure and heat radiation effectsEffects of variations on heat flux and dosis, temperature, max pressure and rise rate Measured with High speed video, BOS, pressure and radiation probes (bolometers)Mass LH2 / initial pressure Nozzle diameter Ignition location Ignition delay times0-200 g/ 0-200 bar 1-4 mm 0-2m 0-1s3 3 5 4KIT/ DISCHA in HYKA-V220 Q160 or H110 (similar E3.1)
E5.236D5.570Flame acceleration and DDT at cryogenic temperaturesH2-air mixture in obstructed tube 50 mm id H2-air mixture in congested tube 0.7m idCritical conditions for FA Critical conditions for DDT Flame dynamics Schlieren images Pressure measurementsH2 concentration Initial temperature Initial pressure Initial temperatureH2 concentration 50-200K 1-5 bar H2 concentrationKIT/ HYKA-H110 or HYKA-Q160
E5.337D5.630Flame propagation over a spill of LH23x9 m2 floor Flame dynamics (video), Pressure measurements, Temperature measurements, BOS imagesInitial temperature, Evaporation rate (derived in E3.4)33-300KIT/ HYKA-H110 (same as E3.4 and E4.4)
E5.538D5.7100Flame propagation in obstructed /confined cold cloudFA and DDT with real geometrical constraints Flame dynamics (video), Pressure measurements, Temperature measurements, BOS imagesCongestion, confinement, inventory, ambient conditionstbdtbdHSL