Lu Mingfeng, Feng Jie, Wang Kaige, Li Yunchao, Yuan Dingkun, Zhang Guangxue, Gu Hailin
The Institute for Energy Engineering, China Jiliang University, Hangzhou, People's Republic of China.
Qingshanhu Energy Research Center, Zhejiang University, Hangzhou, People's Republic of China.
Environ Technol. 2025 Apr;46(11):1804-1816. doi: 10.1080/09593330.2024.2405663. Epub 2024 Sep 21.
Fire smoke, consisting of solid particles and liquid droplets, poses risks of asphyxiation, poisoning, making it a significant contributor to fire-related fatalities and environmental pollution. The exploration of effective smoke control methods represents a vital approach to reducing the threat of fire smoke to public health and safety. This study aims to determine the characteristics of elimination for the fire smoke generated from burning four typical materials, thereby validating the universality of electric agglomeration smoke elimination technology. The results indicate that the elimination efficiency of electric agglomeration varies with the material type of the smoke. The rate of change in smoke transmittance from fast to slow is: polyvinyl chloride (PVC), polystyrene (PS), wood, and styrene butadiene rubber (SBR), respectively. With an external potential of 4 kV, PVC smoke reaches the safe threshold after 12.1 s, while SBR smoke achieves it in just 4.9 s. Analysis of the microscopic morphology of agglomerates with scanning electron microscopy (SEM) reveals that particle size distribution is an important factor affecting electric agglomeration elimination. This is because larger initial particles carry a greater charge, enabling the formation of larger agglomerates for more efficient removal. This study provides theoretical guidance for the practical application of electric agglomeration in eliminating smoke particles.
火灾烟雾由固体颗粒和液滴组成，会带来窒息、中毒风险，是火灾相关死亡和环境污染的重要因素。探索有效的烟雾控制方法是降低火灾烟雾对公众健康和安全威胁的重要途径。本研究旨在确定燃烧四种典型材料产生的火灾烟雾的消除特性，从而验证电凝聚除烟技术的通用性。结果表明，电凝聚的消除效率随烟雾的材料类型而变化。烟雾透过率从快到慢的变化速率分别为：聚氯乙烯（PVC）、聚苯乙烯（PS）、木材和丁苯橡胶（SBR）。在4 kV的外部电势下，PVC烟雾在12.1 s后达到安全阈值，而SBR烟雾仅在4.9 s内就达到了该阈值。用扫描电子显微镜（SEM）分析团聚体的微观形态表明，粒径分布是影响电凝聚消除的一个重要因素。这是因为较大的初始颗粒携带更多电荷，能够形成更大的团聚体以便更有效地去除。本研究为电凝聚在消除烟雾颗粒方面的实际应用提供了理论指导。
