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Modelling the response of LH2 tanks equipment with Multi Layer Insulation to fire exposure

  • Hydrogen is among the most promising candidates to replace fossil fuels in the energy transition. Hydrogen-powered vehicles are already a reality, and their number is foreseen to increase considerably in the next decade. Among the possible solutions to store hydrogen in such vehicles, cryogenic tanks equipped with multi-layer insulation (MLI) appear to be one of the most effective to ensure high volumetric energy density. A potential loss of integrity of this kind of storage equipment might lead to severe consequences due to high flammability of hydrogen. This might occur, for instance, as a consequence of the exposure to an external source of heat such as a fire following a car accident. Real scale fire test results suggest that the super insulating performance of MLI systems may undergo severe degradation when this is subjected to high temperature, leaving the tank almost unprotected and leading to failure in a relatively short time. Characterizing this kind of accident scenario isHydrogen is among the most promising candidates to replace fossil fuels in the energy transition. Hydrogen-powered vehicles are already a reality, and their number is foreseen to increase considerably in the next decade. Among the possible solutions to store hydrogen in such vehicles, cryogenic tanks equipped with multi-layer insulation (MLI) appear to be one of the most effective to ensure high volumetric energy density. A potential loss of integrity of this kind of storage equipment might lead to severe consequences due to high flammability of hydrogen. This might occur, for instance, as a consequence of the exposure to an external source of heat such as a fire following a car accident. Real scale fire test results suggest that the super insulating performance of MLI systems may undergo severe degradation when this is subjected to high temperature, leaving the tank almost unprotected and leading to failure in a relatively short time. Characterizing this kind of accident scenario is crucial to ensure a safe design of storage tanks for Hydrogen-powered vehicles. This presentation provides an overview of the ongoing research work on modelling MLI LH2 tanks exposed to fire. Lumped and computational fluid dynamic based models are presented, highlighting current gaps. The relevance of taking MLI degradation into account when simulating the pressure increase due to external fire exposure is here demonstrated through the analysis case studies.zeige mehrzeige weniger

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  • H2-Colloquium ProSafe 2023_Scarponi.pdf
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Metadaten
Autor*innen:G. ScarponiORCiD
Koautor*innen:Robert Eberwein, Frank Otremba, V. Cozzani
Dokumenttyp:Vortrag
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2023
Organisationseinheit der BAM:3 Gefahrgutumschließungen; Energiespeicher
3 Gefahrgutumschließungen; Energiespeicher / 3.2 Gefahrguttanks und Unfallmechanik
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik
Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau
Freie Schlagwörter:Cold; LH2; MLI
Themenfelder/Aktivitätsfelder der BAM:Energie
Energie / Wasserstoff
Infrastruktur
Infrastruktur / Fire Science
Infrastruktur / Security
Veranstaltung:H2-Kolloquium
Veranstaltungsort:Online meeting
Beginndatum der Veranstaltung:21.06.2023
Enddatum der Veranstaltung:21.06.2023
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:10.07.2023
Referierte Publikation:Nein
Eingeladener Vortrag:Nein
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