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Day 1, 14 July 2022
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Opening and project overview
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09:00-09:25
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Networking
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09:25-09:30
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Opening and welcome (D. Makarov, UU)
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09:30-09:50
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Overview of HyTunnel-CS project and structure of recommendations for stakeholders (D. Makarov, UU)
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Closing knowledge gaps, physical phenomena and engineering tools
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09:50-10:05
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Concrete spalling by hydrogen jet fires (F. Markert, DTU)
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10:05-10:20
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Effect of tunnel slope on hydrogen dispersion (S. Giannissi, NCSRD)
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10:20-10:40
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Effect of counter- and co-flow on hydrogen jets: simulations versus experiment (S. Giannissi, NCSRD)
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10:40-10:55
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Correlation for overpressure during ignited spurious hydrogen release (D. Cirrone, UU)
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10:55-11:10
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Coffee break
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11:10-11:30
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Dimensionless correlation for blast wave decay in a tunnel (V. Shentsov, UU)
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11:30-12:00
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Deflagration of hydrogen releases in tunnel: large-scale experiments (W. Rattigan, HSE)
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12:00-12:20
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Blast wave and fireball after hydrogen tank rupture: real tunnel experiments and simulations (G. Bernard-Michel, CEA)
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12:20-12:40
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Drastic difference between fireball dynamics in the open space and in a tunnel (V. Shentsov, UU)
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12:40-13:00
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Interaction of water sprays and mist systems with hydrogen fire (J. Grune, KIT)
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13:00-14:00
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Lunch
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Recommendations to deal with unignited hydrogen releases and jet fires in confined spaces
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14:00-14:20
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Principles of inherently safer design of hydrogen vehicles for use in confined spaces (D. Makarov, UU)
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14:20-14:35
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Heat release rate, fire resistance rating and contribution of hydrogen released through TPRD to vehicle fire (S. Kashkarov, UU)
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14:35-14:55
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Garages and maintenance shops: mitigation of pressure peaking phenomenon (A. Gaathaug, USN)
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14:55-15:15
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Underground parking: requirements to TPRD size and release direction (V. Shentsov, D. Cirrone, UU)
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15:15-15:35
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CFD and FEM study of hydrogen jet fire effect on tunnel structure (D. Cirrone, UU; F. Markert, DTU)
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15:35-15:50
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Erosion of tunnel materials by hydrogen jets (S. Bergin, HSE)
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15:50-16-05
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Coffee break
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Recommendations to prevent and mitigate hydrogen deflagrations, DDT and detonations in confined spaces
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16:05-16:25
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Correlation for flame acceleration and DDT in non-uniform hydrogen-air mixtures in tunnels (M. Kuznetsov, KIT)
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16:25-16:45
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CFD and FEM study of hydrogen tank rupture on tunnel structure (V. Shentsov, UU; F. Markert, DTU)
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16:45-17:05
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Deflagration of non-uniform clouds with concentration gradient (G. Bernard-Michel, CEA)
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17:05-17:25
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Blast wave attenuation by absorbing materials, water sprays and mist systems (J. Grune, KIT)
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17:25-17:40
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Deflagration propagation through fire extinguishing foam (J. Grune, KIT)
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17:40-18:00
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Q&A session (V. Molkov, UU)
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Day 2, 15 July 2022
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Recommendations to prevent hydrogen tank rupture in a fire
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09:00-09:20
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Design of tank-TPRD system to exclude rupture in a fire and the pressure peaking phenomenon (S. Kashkarov, UU)
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09:20-09:40
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Breakthrough safety technology of explosion free in a fire TPRD-less tank (S. Kashkarov, UU)
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Quantitative risk assessment
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09:40-10:05
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Quantitative risk assessment methodology for hydrogen vehicles in confined space (P. Russo, URS)
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10:05-10:25
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QRA of hydrogen vehicles in road tunnels (S. Kashkarov, UU)
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10:25-10:45
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QRA of hydrogen trains in rail tunnels (P. Russo, URS)
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10:45-11:05
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QRA of hydrogen vehicles in underground parking (F. Markert, DTU)
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11:05-11:20
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Coffee break
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Harmonised recommendations on response to hydrogen accidents
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11:20-11:40
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Project findings and their effect on intervention strategies and tactics (C. Brauner, IFA)
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11:40-12:00
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Interaction of HyTunnel-CS and HyResponder projects (M. Van De Veire, SPFI)
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Recommendations for RCS
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12:00-12:25
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Recommendations for Regulations, Codes and Standards (J. van den Berg, NEN)
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Q&A session and closing remarks
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12:25-12:50
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Q&A session (V. Molkov, UU)
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12:50-13:00
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Closing remarks (D. Makarov, UU)
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