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http://dx.doi.org/10.15231/jksc.2014.19.4.001

Experimental Study on Downwardly Spreading Flame over Inclined Polyethylene-insulated Electrical Wire with Applied AC Electric Fields  

Lim, Seung Jae (Interdisciplinary Program of Biomedical Engineering, Pukyong National University)
Park, Jeong (Department of Mechanical Engineering, Pukyong National University)
Kim, Min Kuk (Environmental & Energy System Research Division, Korea Institute of Machinery and Materials)
Chung, Suk Ho (King Abdullah University of Science and Technology, Clean Combustion Research Center)
Osamu, Fujita (Hokkaido University, Division of Mechanical and Science Engineering)
Publication Information
Journal of the Korean Society of Combustion / v.19, no.4, 2014 , pp. 1-7 More about this Journal
Abstract
An experimental study on downwardly spreading flame over slanted electrical wire, which is insulated by Polyethylene (PE), was conducted with applied AC electric fields. The result showed that the flame spread rate decreased initially with increase in inclination angle of wire and then became nearly constant. The flame shape was modified significantly with applied AC electric field due to the effect of ionic wind. Such a variation in flame spread rate could be explained by a thermal balance mechanism, depending on flame shape and slanted direction of flame. Extinction of the spreading flame was not related to angle of inclination, and was described well by a functional dependency upon the frequency and voltage at extinction.
Keywords
AC electric field; Electrical wire; Angle of inclination; Flame spread rate;
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