Effect of ac electric fields on counterflow diffusion flame of methane

Handle URI:
http://hdl.handle.net/10754/562267
Title:
Effect of ac electric fields on counterflow diffusion flame of methane
Authors:
Chul Choi, Byung; Kuk Kim, Hyung; Chung, Suk-Ho ( 0000-0001-8782-312X )
Abstract:
The effect of electric fields on the response of diffusion flames in a counterflow has been investigated experimentally by varying the AC voltage and frequency. The result showed that the flame was stationary with high AC frequency above the threshold frequency, and it increased with the applied voltage and then leveled off at 35 Hz. Below the threshold frequency, however, the flame oscillated with a frequency that was synchronized with the applied AC frequency. This oscillation can be attributed to the ionic wind effect due to the generation of bulk flow, which arises from the momentum transfer by molecular collisions between neutral molecules and ions, where the ions in the reaction zone were accelerated by the Lorentz force. © 2012 The Korean Society of Mechanical Engineers.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Combustion and Laser Diagnostics Laboratory
Publisher:
The Korean Society of Mechanical Engineers
Journal:
Transactions of the Korean Society of Mechanical Engineers B
Issue Date:
1-Aug-2012
DOI:
10.3795/KSME-B.2012.36.8.849
Type:
Article
ISSN:
12264881
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.authorChul Choi, Byungen
dc.contributor.authorKuk Kim, Hyungen
dc.contributor.authorChung, Suk-Hoen
dc.date.accessioned2015-08-03T09:58:42Zen
dc.date.available2015-08-03T09:58:42Zen
dc.date.issued2012-08-01en
dc.identifier.issn12264881en
dc.identifier.doi10.3795/KSME-B.2012.36.8.849en
dc.identifier.urihttp://hdl.handle.net/10754/562267en
dc.description.abstractThe effect of electric fields on the response of diffusion flames in a counterflow has been investigated experimentally by varying the AC voltage and frequency. The result showed that the flame was stationary with high AC frequency above the threshold frequency, and it increased with the applied voltage and then leveled off at 35 Hz. Below the threshold frequency, however, the flame oscillated with a frequency that was synchronized with the applied AC frequency. This oscillation can be attributed to the ionic wind effect due to the generation of bulk flow, which arises from the momentum transfer by molecular collisions between neutral molecules and ions, where the ions in the reaction zone were accelerated by the Lorentz force. © 2012 The Korean Society of Mechanical Engineers.en
dc.publisherThe Korean Society of Mechanical Engineersen
dc.subjectAc electric fieiden
dc.subjectCollision response timeen
dc.subjectCounterflow diffusion fiameen
dc.subjectIonic winden
dc.subjectOscillationen
dc.titleEffect of ac electric fields on counterflow diffusion flame of methaneen
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.journalTransactions of the Korean Society of Mechanical Engineers Ben
dc.contributor.institutionEnvironment and Plant Team, Korean Register of Shipping, South Koreaen
dc.contributor.institutionAutomotive System Group, Samsung Techwin Co., Ltd., South Koreaen
kaust.authorChung, Suk-Hoen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.