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

Seung Jae Lim, Jeong Park, Min Kuk Kim, Suk Ho Chung, Fujita Osamu

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish (US)
Pages (from-to)1-7
Number of pages7
JournalJournal of the Korean Society of Combustion
Volume19
Issue number4
DOIs
StatePublished - Dec 30 2014

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