Analysis of the boiling liquid expanding vapor explosion (BLEVE) of a liquefied natural gas road tanker: The Zarzalico accident |
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| Institution: | 1. Centre for Studies on Technological Risk (CERTEC), Department of Chemical Engineering, Universitat Politècnica de Catalunya, Diagonal, 647, 08028 Barcelona, Catalonia, Spain;2. Murcia Fire Service, Spain;1. Department of Mechanical & Industrial Engineering, Indian Institute of Technology, Roorke, 247667, India;2. Department of Chemical Engineering, Indian Institute of Technology, Roorke, 247667, India;1. von Karman Institute, Environmental and Applied Fluid Dynamics Department, 72, Chaussée de Waterloo, B1640 Rhode-St-Genèse, Belgium;2. Department of Mechanical and Materials Engineering, Queen''s University, Kingston, Ontario, Canada;3. Ecole des Mines d’Alès, Laboratoire Génie de l’Environnement Industriel, Alès, France;4. CEA, DAM, GRAMAT, F-46500 Gramat, France;1. Department of Mechanical and Materials Engineering, Queen’s University, Kingston, K7L 3N6, Ontario, Canada;2. LGEI, IMT Mines Ales, Univ Montpellier, Ales, France;1. Division 2.2 “Reactive Substances and Systems” BAM Federal Institute for Materials Research and Testing Unter den Eichen 87, 12205 Berlin, Germany;2. Division 2.3 “Explosives” BAM Federal Institute for Materials Research and Testing Unter den Eichen 87, 12205 Berlin, Germany |
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| Abstract: | The road accident of a tanker transporting liquefied natural gas (LNG) originated a fire and, finally, the BLEVE of the tank. This accident has been analyzed, both from the point of view of the emergency management and the explosion and fireball effects. The accidental sequence is described: fire, LNG release, further safety valves release, flames impingement on vessel unprotected wall, vessel failure mode, explosion and fireball. According to the effects and consequences observed, the thermal radiation and overpressure are estimated; a mathematical model is applied to calculate the probable mass contained in the vessel at the moment of the explosion. The peak overpressure predicted from two models is compared with the values inferred from the accident observed data. The emergency management is commented. |
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| Keywords: | LNG Fireball Road transportation Blast Thermal radiation |
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