Experimental analysis of gas explosions at non-atmospheric initial conditions in cylindrical vessel |
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| Authors: | F Cammarota A Di Benedetto P Russo E Salzano |
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| Institution: | 1. Istituto di Ricerche sulla Combustione, Consiglio Nazionale delle Ricerche, Via Diocleziano 328, 80124 Napoli, Italy;2. Dipartimento di Ingegneria Chimica e Alimentare, Università di Salerno, 84084 Fisciano (SA), Italy;1. Shanghai Jiao Tong University, School of Aeronautics and Astronautics, Shanghai 200240, China;2. Beijing Institute of Technology, State Key Laboratory of Explosion Science and Technology, Beijing 100081, China;1. Institute of Safety Science & Engineering, South China University of Technology, Guangzhou 510640, China;2. Guangdong Provincial Science and Technology Collaborative Innovation Center for Work Safety, Guangzhou 510640, China;1. Postdoctoral Program, Xi’an University of Science and Technology, Xi’an, 710054, Shaanxi, PR China;2. School of Safety Science and Engineering, Xi’an University of Science and Technology, 58, Yanta Mid. Rd., Xi’an, 710054, Shaanxi, PR China;3. Shaanxi Engineering Research Center for Industrial Process Safety & Emergency Rescue, 58, Yanta Mid. Rd., Xi’an, 710054, Shaanxi, PR China;4. Shaanxi Key Laboratory of Prevention and Control of Coal Fire, 58, Yanta Mid. Rd., Xi’an, 710054, Shaanxi, PR China;5. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, PR China;1. Beijing Institute of Technology, State Key Laboratory of Explosion Science and Technology, Beijing 100081, China;2. Shanghai Jiao Tong University, School of Aeronautics and Astronautics, Shanghai 200240, China;1. School of Environmental and Safety Engineering, North University of China, Taiyuan 030051, PR China;2. Department of Safety, Health, and Environmental Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan, ROC |
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| Abstract: | Accidental gas explosions in industrial equipment are seldom initiated at atmospheric conditions. Furthermore, fuel–air mixtures are generally turbulent due to rotating parts or flows. Despite these considerations, few studies have been devoted to the analysis of explosion properties at conditions of temperature and pressure different from ambient and in the presence of turbulence; therefore, experiments are still needed, even at lab-scale, e.g. for the design of mitigation system as venting devices.In this work, experimental explosion tests have been performed in 5 l, cylindrical tank reactor with stoichiometric methane–air mixtures at initial pressure and temperature up to 600 kPa and 400 K, centrally ignited or top ignited, and with the effect of initial turbulence level by varying the velocity of the mechanical stirrer. |
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