BLEVE: The case of water and a historical survey |
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| Affiliation: | 1. Center for Process Design, Safety and Loss Prevention (CPSL), Chemical and Petroleum Engineering Department, Sharif University of Technology, Tehran, Iran;2. Centre for Technological Risk Studies (CERTEC), Barcelona East School of Engineering (EEBE), Universitat Politècnica de Catalunya, BarcelonaTech (UPC), Eduard Maristany 10-14, 08019, Barcelona, Catalonia, Spain;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. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, 100081 Beijing, China;2. Beijing Academy of Safety Science and Technology, 100070 Bejing, China;3. Petroleum Production Technology Research Institute, Petro China Jilin Oilfield Company, Songyuan, China |
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| Abstract: | After a short update of the current more accepted definition of BLEVE, the special features of water BLEVEs are analyzed. The stronger overpressure wave generated in the case of water as compared to that of other substances is justified in terms of volume change. Through a comparison with liquefied pressurized propane, three possibilities are analyzed: the simultaneous contribution of both the liquid and the preexisting vapor, the contribution of the liquid flash vaporization, and the contribution of the pre-existing vapor. Also a historical survey on a set of 202 BLEVE accidents –the largest sample of BLEVE accidents surveyed until now– is presented. LPG was the most common substances in this set of accidents. However, water and LNG (11% of water and 4% of LNG in the studied cases) have also been involved. Impact failure (44.8%) and human factor (30.3%) were the most common causes of BLEVEs. Transport, storage, process plants, and transfer were the activities in which more accidents occurred. |
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| Keywords: | BLEVE Overpressure Steam boilers Historical analysis |
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