Experimental investigations on the external pressure during venting |
| |
| Institution: | 1. School of Civil and Resource Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia;2. GexCon Australia, 8/64 Fitzgerald Street, Northbridge, WA 6003, Australia;1. College of Environment and Resources, Fuzhou University, Fuzhou 350116, PR China;2. School of Civil Engineering, Hefei University of Technology, Hefei 230009, PR China;3. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, PR China;1. School of Environmental and Safety Engineering, North University of China, Taiyuan 030051, Shanxi, PR China;2. Public Security Bureau of Suzhou, Suzhou 215000, Jiangsu, PR China;3. Department of Safety, Health, and Environmental Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan, ROC;1. Research Institute of Macro-Safety Science, University of Science and Technology Beijing, Beijing, 100083, China;2. School of Safety Engineering & Hydrogen Energy Research Centre, Beijing Institute of Petrochemical Technology, Beijing, 102617, China;3. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China |
| |
| Abstract: | Experiments of explosion venting in different conditions were performed in a cylindrical vessel with a vent duct; the pressure-time profiles from four transducers mounted in the line-of-sight centerline outside the vessel and the clear sequential shadowgraphs of external venting flow field taken by a high-speed shadowgraph imaging system were obtained. Based on these results, the characteristics of the external pressure field during venting were discussed systematically to explain the generation mechanism of the secondary explosion. In addition, the variations of the intensity of the secondary explosion in different venting conditions, namely the failure pressure, ignition location, area blockage ratio or equivalence ratio of the fuel, were also analyzed in detail. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
