Numerical and experimental study on flame spread over conveyor belts in a large-scale tunnel |
| |
| Institution: | 1. Key Laboratory of Gas and Fire Control for Coal Mines, School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China;2. International Research Center for Underground Coal Gasification, China University of Mining and Technology, Xuzhou, 221116, China;1. College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi''an, Shaanxi 710054, China;2. Key Laboratory of Mine and Disaster Prevention and Control of Ministry of Education, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, China;3. National Mine Rescue Xi’an Research Center, Xi’an, Shaanxi 710054, China;1. Safety Engineering Institute, College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China;2. College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China;3. Xinjiang Lianhai INA-INT Information Technology Ltd., Urumqi 830000, Xinjiang, China;4. China Academy of Electronics and Information Technology, Beijing 100041, China;5. School of Automotive and Transportation Engineering, Hefei University of Technology, Hefei, Anhui 230009, China;1. College of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China;2. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221008, China;1. State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China;2. Department of Geotechnical Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China;3. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, 1239 Siping Road, Shanghai 200092, China;4. Shanghai Urban Construction Design & Research Institute, 3447 Dongfang Road, Shanghai 200125, China |
| |
| Abstract: | Conveyor belt fires in an underground mine pose a serious life threat to the miners. This paper presents numerical and experimental results characterizing a conveyor belt fire in a large-scale tunnel. A computational fluid dynamics (CFD) model was developed to simulate the flame spread over the conveyor belt in a mine entry. Thermogravimetric analysis (TGA) tests were conducted for the conveyor belt and results were used to estimate the kinetic properties for modeling the pyrolysis process of the conveyor belt burning. The CFD model was calibrated using results from the large-scale conveyor belt fire experiments. The comparison between simulation and test results shows that the CFD model is able to capture the major features of the flame spread over the conveyor belt. The predicted maximum heat release rate, and maximum smoke temperature are in good agreement with the large-scale tunnel fire test results. The calibrated CFD model can be used to predict the flame spread over a conveyor belt in a mine entry under different physical conditions and ventilation parameters to aid in the design of improved fire detection and suppression systems, mine rescue, and mine emergency planning. |
| |
| Keywords: | Conveyor belt fire Computational fluid dynamics Flame spread Ventilation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
