Pool fire accident in an aboveground LFO tank storage: thermal analysis |
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| Affiliation: | 1. ZAG-Slovenian National Building and Civil Engineering Institute, Fire Laboratory and Fire Engineering, Dimičeva 12, SI-1000 Ljubljana, Slovenia;2. ZAG-Slovenian National Building and Civil Engineering Institute, Department of Building Physics, Dimičeva 12, SI-1000 Ljubljana, Slovenia;1. Dipartimento di Ingegneria Civile e Industriale, Università di Pisa, Largo Lucio Lazzarino n.2, 56126 Pisa, Italy;2. LISES, Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Alma Mater Studiorum, Università di Bologna, via Terracini n.28, 40131 Bologna, Italy;3. Department of Mechanical and Materials Engineering, McLaughlin Hall 202A, Queen''s University, Kingston, Ontario K7L3N6, Canada;1. Jensen Hughes, 2270 Kraft Dr., Suite 1260, Blacksburg, VA 24060, USA;2. Virginia Tech, 37 Kelly Hall, 325 Stanger St., Blacksburg, VA 24061, USA;1. Institute of Safety Science and Engineering, South China University of Technology, 510640 Guangzhou, China;2. Safety and Security Science Group, Delft University of Technology, Delft, The Netherlands;3. Antwerp Research Group on Safety and Security, University of Antwerp, 2000 Antwerp, Belgium;4. Center for Economics and Corporate Sustainability, University of Leuven, 1000 Brussels, Belgium;1. College of Chemical Engineering, China University of Petroleum(East China), Qingdao, Shandong 266580, China;2. College of Mechanical and Electronic Engineering, China University of Petroleum(East China), Qingdao, Shandong 266580, China;3. State Grid Anhui Electric Power Research Institute, Hefei, Anhui, 230 022, China |
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| Abstract: | Fire in an aboveground light fuel oil (LFO) tank storage can cause surrounding tanks to heat up considerably. The incident usually does not result in a fire in the thermally exposed adjacent tanks. Nonetheless, their structural systems are at risk of either collapsing or plastically deforming. Prior to performing a complete structural analysis of the mechanical response of the exposed adjacent tanks, however, heat flux from the flames of the burning tank to its surroundings needs to be determined and the thermal profiles consequently established in the exposed tanks are to be defined. An adequate numerical procedure is proposed in this paper. In the latter, radiative characteristics of the flame body are first established by engaging a solid flame radiation model and then incident radiative heat flux entering the adjacent tank is calculated subsequently accounting for the tank׳s ‘visibility’ and atmospheric absorptivity. In support of the numerical analysis, experiments on 300 cm diameter LFO pans are presented and data from the literature are gathered. In the final part of the paper, a parametric study is shown exploring effects of the wind speed, distance between the tanks, and the level of the LFO fuel contained in the tanks. While the effects of wind speed and the distance between the tanks are evaluated significant the effects of the observed fuel levels are found to be irrelevant. |
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| Keywords: | Pool fire LFO Light fuel oil Emissive power Wind effect Flame height |
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