Simulation of scenario characteristics of LPG tank explosion accident and its contribution to emergency planning: A case study |
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| Institution: | 1. College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai, 201306, China;2. Anyang Fire and Rescue Detachment, Anyang, 455000, China;1. Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, China;2. Automotive and Tractors Engineering Department, Faculty of Engineering, Minia University, El-Minia 61519, Egypt;1. School of Petroleum Engineering, Xi''an Shiyou University, Xi''an, Shaanxi, 710065, China;2. Engineering Research Center of Development and Management for Low to Extra-Low Permeability Oil & Gas Reservoirs in West China, Ministry of Education, Xi''an, Shaanxi, 710065, China;3. Northwest Oilfield Company, Sinopec, Urumqi, Xinjiang, 830011, China;4. Petrochina ChangQing Oilfield Company Oil Production Plant, NO.11, Guyuan, Ningxia, 756500, China;5. Research Institute of Exploration and Development, Shengli Oilfield Co., Sinopec, Dongying, Shandong, 257015, China;1. Shanghai Jiao Tong University, Shanghai, 200240, PR China;2. Shanghai Aerospace Equipment Manufacturer Co., Ltd, Shanghai, 200245, PR China;1. CAIMI Centro de Aplicaciones Informáticas y Modelado en Ingeniería, Universidad Tecnológica Nacional, Facultad Regional Rosario, Zeballos, 1346, S2000BQA, Rosario, Argentina;2. CONICET Consejo Nacional de Investigaciones Científicas y Técnicas, Blvd. 27 de Febrero 210 Bis, S2000EZP, Rosario, Argentina |
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| Abstract: | Leakage and explosion of hazardous chemicals during road transportation can cause serious building damage and casualties, and adoption of highly-efficient emergency rescue measures plays a critical role in reducing accidental hazards. Considering a liquefied petroleum gas (LPG) transport tanker explosion accident that occurred in Wenling, Zhejiang Province, China on June 13, 2020 as example, this study proposes a risk assessment framework. This framework recreates the leakage and explosion of the accident process using FLACS v10.9, suggests plans for evacuation, describes the rescue areas of different levels, and explores the influence of environmental factors on the evacuation and rescue areas. The results show that simulated and predicted distributions of fuel vapour cloud concentration and explosion overpressure can provide a reference basis for rapid rescue activities; the characterization of the dynamic effects of wind speed, wind direction, and temperature with respect to the evacuation and rescue areas can be used as theoretical support for on-site adjustment of rescue forces. The role of obstacles can prevent the expansion of the evacuation areas under low wind-speed conditions, and the presence of highly congested obstacles determines the level of the rescue area. The results obtained are important for the risk analysis and the development of emergency rescue measures in case of explosion accidents associated with transportation of hazardous chemicals on high-hazard and high-sensitive road sections. |
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| Keywords: | LPG tanker Leakage Vapour cloud explosion Risk assessment Evacuation and rescue Transportation |
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