Engineering Tools

WP	Correlation title	Issue addressed/objective	Reference
3	The similarity law for concentration decay in momentum jets	Calculation of hydrogen axial concentration decay in unignited momentum-controlled jets, including cryogenic releases
3	Storage tank blowdown model	Calculation of storage and release conditions during blowdown of a tank containing cryo-compressed hydrogen
3	Two-phase steady state choked flow with pipe effects	Two-phase (including single phase) steady state choked flow with account of
3	Spreading rate of cryogenic pools	Calculation of cryogenic pool spreading based on experimental campaigns on LN2 and GNL
3	Release rate of small-scale jets	Calculation of release rate based on tests on small-scale jets cryogenic GH2 and LN2
3	Concentration decay in small-scale jets	Calculation of jet characteristics and hazard distances based on experiments on small-scale cryogenic jets
3	Evaporation rate of LH2 pools	Calculation of evaporation rate based on experimental data on LH2 pools
3	LH2 vaporization and pool formation for releases at elevated height	Estimation of vaporization and pool characteristics based on experimental data on LH2 vaporization/pool formation for elevated release points
4	Ignition Energy for hydrogen-air mixtures	Calculation of Minimum Ignition Energy (MIE) in hydrogen-air quiescent mixtures, including cryogenic temperature
4	Laminar burning velocity and expansion ratios for hydrogen-air mixtures	Calculation of burning parameters based on correlation extracted from the flame ball development in hydrogen-air mixtures, including at cryogenic temperature
4	Electrostatic charge generated in hydrogen jets	Calculation of the electrostatic charge generated in cryogenic hydrogen jets leading to ignition
4	Charge density of an LH2 flow	Calculation of charge density of an LH2 release and maximum potential of the resulting cloud based on measurements on the electric field
4	Pressure load from ignition of an LH2 spill	Calculate the pressure loads originated by the delayed ignition of an LH2 spill
5	Pressure load from delayed ignition of turbulent jets	Calculate the pressure loads originated by the delayed ignition of hydrogen turbulent jets, including cryogenic releases
5	Hazard distances for jet fires	Calculation of flame dimensions and hazard distances for jet fires, including cryogenic releases
5	Thermal load from jet fires	Calculation of hazard distances based on thermal radiation and thermal dose harm criteria along and aside the jet fire axis
5	Pressure load from delayed ignition of turbulent jets	Calculate the pressure loads originated by the delayed ignition of cryogenic hydrogen turbulent jets based on experimental data
5	Thermal radiation from jet fires	Calculation of hazard distances based on thermal radiation aside the jet fire based on experimental data
5	Flame acceleration and detonation transition for cryogenic hydrogen-air mixtures	Calculate the critical conditions for flame acceleration and detonation transition for hydrogen-air mixtures at cryogenic temperatures, to evaluate the strongest possible combustion pressure and safety distances for LH2 explosions
5	Pressure load from LH2 combustion in congested/semi-confined spaces	Evaluate the pressure load from combustion of cryogenic hydrogen-air mixtures in congested/semi-confined spaces based on results of their experimental campaign
5	Fireball scale correlations for late ignition sudden hydrogen releases (including BLEVE)	Calculate the scaling dependencies of characteristic fireball radius, characteristic time, heat radiation energy, blast wave characteristics in Sachs co-ordinates.