Improving the fire-extinguishing effect of pneumatic extinguishers with airflow-spray synergistic jet: Investigation of nozzle position and number of nozzles
The fire-extinguishing capability of the overheating 6 MF-30 pneumatic fire extinguisher needs to be improved. To enhance its fire-extinguishing capability, this study proposes a method of adding water through nozzles. The study conducted flow-field simulations to determine the appropriate nozzle po...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23004306 |
| _version_ | 1827930449550245888 |
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| author | Fanbao Chen Bin Yao Guoqing Zhu Wanhai Guo Tingting Xu Tao Deng Zhenhua Jiang Ziyang Wang Min Peng Xinyu Wang |
| author_facet | Fanbao Chen Bin Yao Guoqing Zhu Wanhai Guo Tingting Xu Tao Deng Zhenhua Jiang Ziyang Wang Min Peng Xinyu Wang |
| author_sort | Fanbao Chen |
| collection | DOAJ |
| description | The fire-extinguishing capability of the overheating 6 MF-30 pneumatic fire extinguisher needs to be improved. To enhance its fire-extinguishing capability, this study proposes a method of adding water through nozzles. The study conducted flow-field simulations to determine the appropriate nozzle position and replicate the synergistic jet effects using varying number of nozzles. Experimental studies were carried out to validate the simulation and demonstrate the efficiency of the synergistic jet in extinguishing fires directly. The findings show that placing the nozzle at the air duct outlet and using a higher number of nozzles is more efficient. Additionally, the synergistic jet has a better fire-extinguishing performance than pure airflow because of the cooling effects resulting from the water mist and collaborative action observed during the experimental studies. This research has significant implications for improving the efficiency and effectiveness of pneumatic fire extinguishers while advancing fire-extinguishing technology and firefighting technology. |
| first_indexed | 2024-03-13T06:36:49Z |
| format | Article |
| id | doaj.art-41b9dfa96a0e4845ba44a88e8f4e5fcb |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-13T06:36:49Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-41b9dfa96a0e4845ba44a88e8f4e5fcb2023-06-09T04:28:10ZengElsevierCase Studies in Thermal Engineering2214-157X2023-07-0147103124Improving the fire-extinguishing effect of pneumatic extinguishers with airflow-spray synergistic jet: Investigation of nozzle position and number of nozzlesFanbao Chen0Bin Yao1Guoqing Zhu2Wanhai Guo3Tingting Xu4Tao Deng5Zhenhua Jiang6Ziyang Wang7Min Peng8Xinyu Wang9Jiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, 221116, China; Fire Research Institute, China University of Mining and Technology, Xuzhou, 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, ChinaJiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, 221116, China; Fire Research Institute, China University of Mining and Technology, Xuzhou, 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, ChinaJiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, 221116, China; Fire Research Institute, China University of Mining and Technology, Xuzhou, 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China; Corresponding author. Jiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, 221116, China.Jiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, 221116, China; Fire Research Institute, China University of Mining and Technology, Xuzhou, 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, ChinaJiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, 221116, China; Fire Research Institute, China University of Mining and Technology, Xuzhou, 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, ChinaDepartment of Mechanical Engineering, The University of Auckland, Auckland, 1142, New ZealandDepartment of Mechanical Engineering, The University of Auckland, Auckland, 1142, New ZealandDepartment of Mechanical Engineering, The University of Auckland, Auckland, 1142, New ZealandJiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, 221116, China; Fire Research Institute, China University of Mining and Technology, Xuzhou, 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, ChinaJiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, 221116, China; Fire Research Institute, China University of Mining and Technology, Xuzhou, 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, ChinaThe fire-extinguishing capability of the overheating 6 MF-30 pneumatic fire extinguisher needs to be improved. To enhance its fire-extinguishing capability, this study proposes a method of adding water through nozzles. The study conducted flow-field simulations to determine the appropriate nozzle position and replicate the synergistic jet effects using varying number of nozzles. Experimental studies were carried out to validate the simulation and demonstrate the efficiency of the synergistic jet in extinguishing fires directly. The findings show that placing the nozzle at the air duct outlet and using a higher number of nozzles is more efficient. Additionally, the synergistic jet has a better fire-extinguishing performance than pure airflow because of the cooling effects resulting from the water mist and collaborative action observed during the experimental studies. This research has significant implications for improving the efficiency and effectiveness of pneumatic fire extinguishers while advancing fire-extinguishing technology and firefighting technology.http://www.sciencedirect.com/science/article/pii/S2214157X23004306Forest firePneumatic extinguisherCFD simulationExtinguishing experimentAirflow-spray synergistic jet |
| spellingShingle | Fanbao Chen Bin Yao Guoqing Zhu Wanhai Guo Tingting Xu Tao Deng Zhenhua Jiang Ziyang Wang Min Peng Xinyu Wang Improving the fire-extinguishing effect of pneumatic extinguishers with airflow-spray synergistic jet: Investigation of nozzle position and number of nozzles Case Studies in Thermal Engineering Forest fire Pneumatic extinguisher CFD simulation Extinguishing experiment Airflow-spray synergistic jet |
| title | Improving the fire-extinguishing effect of pneumatic extinguishers with airflow-spray synergistic jet: Investigation of nozzle position and number of nozzles |
| title_full | Improving the fire-extinguishing effect of pneumatic extinguishers with airflow-spray synergistic jet: Investigation of nozzle position and number of nozzles |
| title_fullStr | Improving the fire-extinguishing effect of pneumatic extinguishers with airflow-spray synergistic jet: Investigation of nozzle position and number of nozzles |
| title_full_unstemmed | Improving the fire-extinguishing effect of pneumatic extinguishers with airflow-spray synergistic jet: Investigation of nozzle position and number of nozzles |
| title_short | Improving the fire-extinguishing effect of pneumatic extinguishers with airflow-spray synergistic jet: Investigation of nozzle position and number of nozzles |
| title_sort | improving the fire extinguishing effect of pneumatic extinguishers with airflow spray synergistic jet investigation of nozzle position and number of nozzles |
| topic | Forest fire Pneumatic extinguisher CFD simulation Extinguishing experiment Airflow-spray synergistic jet |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23004306 |
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