Numerical simulation of the thermal inertia of an adiabatic reaction calorimeter in reaction thermal safety process |
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| Institution: | 1. School of Safety Science and Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China;2. College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, Jiangsu, China;3. Institute of Industry and Trade Measurement Technology, College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, China;4. Zhejiang Engineering Laboratory of Chemicals Safety Testing Technology and Instruments, Hangzhou, China;1. KU Leuven, Department of Mechanical Engineering, Group T Leuven Campus, A. Vesaliusstraat 13, B-3000, Leuven, Belgium;2. KU Leuven, Department of Materials Engineering, Group T Leuven Campus, A. Vesaliusstraat 13, B-3000, Leuven, Belgium;3. KU Leuven, Department of Chemical Engineering, Celestijnenlaan 200F, B-3001, Leuven, Belgium;4. KU Leuven, Department of Mechanical Engineering, Celestijnenlaan 300A, B-3001, Leuven, Belgium;5. Adinex NV, Brouwerijstraat 11, B-2200, Herentals, Belgium;6. North-West University, Material Science, Innovation and Modelling (MaSIM), Private Bag X2046, 2745, Mmabatho, South Africa;1. School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China;2. Tianjin Key Laboratory of Hazardous Waste Safety Disposal and Recycling Technology, Tianjin, 300384, China;1. College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, China;2. Department of Process Engineering & Applied Science, Dalhousie University, Halifax, B3H 4R2, Canada;3. Fire & Explosion Protection Laboratory, Northeastern University, Shenyang, 110819, China;1. School of Safety Science and Engineering, Changzhou University, No. 21, Gehu Mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China;2. Department of Safety, Health, And Environmental Engineering, National Yunlin University of Science and Technology, No. 123, University Rd., Sec. 3, Yunlin, 64002, Taiwan, ROC |
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| Abstract: | Obtaining accurate thermal risk assessment parameters of chemical processes and substance properties is essential for improving the safety of chemical production and substance use and storage, and the adiabatic reaction calorimeter (ARC) has been employed by many researchers for this purpose. However, with the improvement and upgrading of the instrument, an examination of the factors that affect its detection accuracy is warranted. A simplified reaction model of the adiabatic thermal decomposition of tert-butyl peroxyacetate was constructed using computational fluid dynamics in which the adiabatic thermal decomposition kinetic model and fluid-solid coupling model were combined to simulate heat transfer. To verify the reliability of the parameters of the numerical calculation model, the effects of the sample cell's material, wall thickness, and mass were investigated in relation to the thermal inertia of the ARC. The results indicated that the thermal inertia of the system was lowest when the sample cell was composed of titanium. When the sample pool's composition is determined, the thermal inertia of the system can be reduced to a certain extent through an approximate increase in the sample mass. Finally, an analysis of the heat flow cloud diagram of the wall of sample pools made from different materials revealed that the thermal conductivity of titanium was high; this information can assist in controlling the adiabatic process. |
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| Keywords: | Computational fluid dynamics Adiabatic reaction calorimeter Thermal inertia TBPA Thermal decomposition |
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