Risk assessment method of polyethylene dust explosion based on explosion parameters |
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| Institution: | 1. Air Force Institute of Technology, Nigerian Air Force, Nigeria;2. Energy Research Institute University of Leeds, Leeds, United Kingdom;1. Safety and Risk Engineering Group (SREG), Faculty of Engineering & Applied Science, Memorial University of Newfoundland, St. John’s, NL, Canada A1B 3X5;2. Department of Process Engineering & Applied Science, Dalhousie University, Halifax, NS, Canada B3J 2X4;1. Key Laboratory of Gas and Fire Control for Coal Mines of Ministry of Education, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China;2. School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China;1. School of Safety Engineering, Beijing Institute of Petrochemical Technology, Beijing, China;2. Beijing Academy of Safety Engineering and Technology, Beijing, China;3. Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, China |
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| Abstract: | The explosion characteristic parameters of polyethylene dust were systematically investigated. The variations in the maximum explosion pressure (Pmax), explosion index (Kst), minimum ignition energy (MIE), minimum ignition temperature (MIT), and minimum explosion concentration (MEC) of dust samples with different particle sizes were obtained. Using experimental data, a two-dimensional matrix analysis method was applied to classify the dust explosion severity based on Pmax and Kst. Then, a three-dimensional matrix was used to categorize the dust explosion sensitivity based on three factors: MIE, MIT, and MEC. Finally, a two-dimensional matrix model of dust explosion risk assessment was established considering the severity and sensitivity. The model was used to evaluate the explosion risk of polyethylene dust samples with different particle sizes. It was found that the risk level of dust explosion increased with decreasing particle size, which was consistent with the actual results. The risk assessment method can provide a scientific basis for dust explosion prevention in the production of polyethylene. |
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| Keywords: | Polyethylene Dust explosion Risk assessment Explosion characteristic parameters Matrix analysis |
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