Numerical modeling of water spray suppression of conveyor belt fires in a large-scale tunnel |
| |
| Institution: | 1. Departments of Mechanical Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan, ROC;2. Departments of Safety, Health, and Environmental Engineering, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan, ROC;3. Department of Cosmetic Application and Management, St. Mary’s Junior College of Medicine, Nursing and Management, Yilan 26644, Taiwan, ROC;4. Department of Safety, Health, and Environmental Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan, ROC;1. Department of Resources Engineering, National Cheng Kung University, No.1, University Road, Tainan City 70101, Taiwan, ROC;2. Department of Occupational Safety and Health, Chang Jung Christian University, No.1, Changda Rd., Gueiren District, Tainan City 71101, Taiwan, ROC;3. Department of Fire Science, Central Police University, No.56, Shujen Rd., Takang Vill., Kueishan District, Taoyuan City 33304, Taiwan, ROC;1. Department of Research and Development, University of Petroleum and Energy Studies, Dehradun, 248007, Uttarakhand, India;2. Department of Mechanical Engineering, University of Petroleum and Energy Studies, Dehradun, 248007, Uttarakhand, India;3. Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada;4. Department of Health, Safety, Environment and Civil Engineering, University of Petroleum and Energy Studies, Dehradun, 248 007, India |
| |
| Abstract: | Conveyor belt fires in an underground mine pose a serious life threat to miners. Water sprinkler systems are usually used to extinguish underground conveyor belt fires, but because of the complex interaction between conveyor belt fires and mine ventilation airflow, more effective engineering designs are needed for the installation of water sprinkler systems. A computational fluid dynamics (CFD) model was developed to simulate the interaction between the ventilation airflow, the belt flame spread, and the water spray system in a mine entry. The CFD model was calibrated using test results from a large-scale conveyor belt fire suppression experiment. Simulations were conducted using the calibrated CFD model to investigate the effects of sprinkler location, water flow rate, and sprinkler activation temperature on the suppression of conveyor belt fires. The sprinkler location and the activation temperature were found to have a major effect on the suppression of the belt fire, while the water flow rate had a minor effect. |
| |
| Keywords: | Conveyor belt fires Computational fluid dynamics Water sprinkler systems Flame spread Ventilation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
