Explosion hazard of liquefied natural gas (LNG) in tunnels
- Within the TF-project SiVi the BAM occupies itself interdisciplinary with the safety of traffic infrastructures considering extremely severe damage events. Therefore, a scenario of fire inside a traffic tunnel induced by a gas cloud explosion is chosen as representative. Additionally, a dangerous goods transporter shall be involved in the scenario. As further aspect which shall be investigated is the use of liquefied natural gas (LNG) as fuel support in transport vehicle like trucks in future. The main component of LNG is methane as a flammable gas. To transport a sufficient amount of fuel the methane is cooled down at -161°C, its boiling point. In liquid phase LNG is compressed 600 times more than in gas phase. The issue of department 2.4 is to identify the hazards for people and the tunnel structure located in the surrounding whilst a potential release of LNG out of a leaking tank occurs. Therefore, the temporal and spatial distribution of the gas cloud within the tunnelWithin the TF-project SiVi the BAM occupies itself interdisciplinary with the safety of traffic infrastructures considering extremely severe damage events. Therefore, a scenario of fire inside a traffic tunnel induced by a gas cloud explosion is chosen as representative. Additionally, a dangerous goods transporter shall be involved in the scenario. As further aspect which shall be investigated is the use of liquefied natural gas (LNG) as fuel support in transport vehicle like trucks in future. The main component of LNG is methane as a flammable gas. To transport a sufficient amount of fuel the methane is cooled down at -161°C, its boiling point. In liquid phase LNG is compressed 600 times more than in gas phase. The issue of department 2.4 is to identify the hazards for people and the tunnel structure located in the surrounding whilst a potential release of LNG out of a leaking tank occurs. Therefore, the temporal and spatial distribution of the gas cloud within the tunnel structure shall be recorded. Basis for this will be experiments in 1:1 at BAM test rig TTS as well as numerical analysis within ANSYS CFX. On top ignition tests of the distributed gas cloud in a down scaled model allow statements on the emerging maximum pressure and temperature.…
Autor*innen: | Erik Scharff |
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Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2016 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau |
Freie Schlagwörter: | Gasausbreitung; Verflüssigtes Erdgas LNG; Tunnel |
Veranstaltung: | BAM PhD retreat |
Veranstaltungsort: | Wandlitz, Germany |
Beginndatum der Veranstaltung: | 27.05.2016 |
Enddatum der Veranstaltung: | 29.05.2016 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 27.11.2017 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |