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http://dx.doi.org/10.7837/kosomes.2021.27.5.675

Experimental Study on Flow Direction of Fire Smoke in DC Electric Fields  

Park, Juwon (Division of Marine System Engineering, Korea Maritime & Ocean University)
Kim, Youngmin (Division of Marine Engineering, Korea Maritime & Ocean University)
Seong, Seung Hun (Division of Marine System Engineering, Korea Maritime & Ocean University)
Park, Sanghwan (Division of Marine System Engineering, Korea Maritime & Ocean University)
Kim, Ji Hwan (Division of Marine System Engineering, Korea Maritime & Ocean University)
Chung, Yongho (State Key Laboratory of Fire Science, University of Science and Technology of China)
Yoon, Sung Hwan (Interdisciplinary Major of Maritime AI Convergence, Korea Maritime & Ocean University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.27, no.5, 2021 , pp. 675-682 More about this Journal
Abstract
Fire accidents on land and at sea can cause serious casualties; specifically, owing to the nature of marine plants and ships, the mortality rate at sea from suffocation in confined spaces is significantly higher than that on land. To prevent such cases of asphyxiation, it is essential to install ventilation fans that can outwardly direct these toxic gases from fires; however, considering the scale of marine fires, the installation of large ventilation fans is not easy owing to the nature of marine structures. Therefore, in this study, we developed a new concept for fire safety technology to control toxic gases generated by fires from applied direct current (DC) electric fields. In the event of a fire, most flames contain large numbers of positive and negative charges from chemi-ionization, which generates an "ionic wind" by Lorentz forces through the applied electric fields. Using these ionic winds, an experimental study was performed to artificially control the fire smoke caused by burning paper and styrofoam, which are commonly used as insulation materials in general buildings and ships. The experiments showed that a fire smoke could be artificially controlled by applying a DC voltage in excess of ±5 kV and that relatively effective control was possible by applying a negative voltage rather than a positive voltage.
Keywords
Marine fire; Fire smoke; Ionic wind; Electric field; Fire safety;
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Times Cited By KSCI : 1  (Citation Analysis)
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