Effect of AC electric fields on flame spread over electrical wire

Handle URI:
http://hdl.handle.net/10754/561596
Title:
Effect of AC electric fields on flame spread over electrical wire
Authors:
Kim, Minkuk; Chung, Suk-Ho ( 0000-0001-8782-312X ) ; Fujita, Osamu
Abstract:
The effect of electric fields on the characteristics of flame spread over insulated electrical wire has been investigated experimentally by varying AC voltage and frequency applied to the wire in the normal gravity condition. The polyethylene (PE) insulated electrical wire was placed horizontally on electrically non-conducting posts and one end of the wire was connected to the high voltage terminal. Thus, the electrical system is the single electrode configuration. The wire was ignited at one end and the flame spread rate along the wire has been measured from the images using a video camera. Two distinct regimes existed depending on the applied AC frequency. In the low frequency regime, the flame spread rate decreased with the frequency and voltage. While in the high frequency regime, it decreased initially with voltage and then increased. At high frequency, the spread rate was even over that without applying electric fields. This result implies that fire safety codes developed without considering the effect of electric fields may require modifications. © 2010 Published by Elsevier Inc. on behalf of The Combustion Institute. All rights reserved.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Combustion and Laser Diagnostics Laboratory
Publisher:
Elsevier
Journal:
Proceedings of the Combustion Institute
Issue Date:
2011
DOI:
10.1016/j.proci.2010.06.155
Type:
Article
ISSN:
15407489
Sponsors:
This work was supported by AEA Project/KAUST and by "Ground-Based Research Program for Space Utilization" by Japan Space Forum (2006-09).
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorKim, Minkuken
dc.contributor.authorChung, Suk-Hoen
dc.contributor.authorFujita, Osamuen
dc.date.accessioned2015-08-02T09:15:00Zen
dc.date.available2015-08-02T09:15:00Zen
dc.date.issued2011en
dc.identifier.issn15407489en
dc.identifier.doi10.1016/j.proci.2010.06.155en
dc.identifier.urihttp://hdl.handle.net/10754/561596en
dc.description.abstractThe effect of electric fields on the characteristics of flame spread over insulated electrical wire has been investigated experimentally by varying AC voltage and frequency applied to the wire in the normal gravity condition. The polyethylene (PE) insulated electrical wire was placed horizontally on electrically non-conducting posts and one end of the wire was connected to the high voltage terminal. Thus, the electrical system is the single electrode configuration. The wire was ignited at one end and the flame spread rate along the wire has been measured from the images using a video camera. Two distinct regimes existed depending on the applied AC frequency. In the low frequency regime, the flame spread rate decreased with the frequency and voltage. While in the high frequency regime, it decreased initially with voltage and then increased. At high frequency, the spread rate was even over that without applying electric fields. This result implies that fire safety codes developed without considering the effect of electric fields may require modifications. © 2010 Published by Elsevier Inc. on behalf of The Combustion Institute. All rights reserved.en
dc.description.sponsorshipThis work was supported by AEA Project/KAUST and by "Ground-Based Research Program for Space Utilization" by Japan Space Forum (2006-09).en
dc.publisherElsevieren
dc.subjectElectric fieldsen
dc.subjectExtinctionen
dc.subjectIonic wind effecten
dc.subjectSpread rateen
dc.subjectWire flameen
dc.titleEffect of AC electric fields on flame spread over electrical wireen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentCombustion and Laser Diagnostics Laboratoryen
dc.identifier.journalProceedings of the Combustion Instituteen
dc.contributor.institutionDivision of Mechanical and Space Engineering, Hokkaido University, Sapporo, Japanen
kaust.authorKim, Minkuken
kaust.authorChung, Suk-Hoen
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