Basic study on lift-off characteristics of non-premixed flames of methane-air jet in a tube
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, G.T. | - |
dc.contributor.author | Kim, N.I. | - |
dc.date.accessioned | 2023-03-08T22:54:02Z | - |
dc.date.available | 2023-03-08T22:54:02Z | - |
dc.date.issued | 2011-04 | - |
dc.identifier.issn | 1226-4881 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/65045 | - |
dc.description.abstract | Flame lift-off conditions determine the operating conditions of burners. It is known that a flame can be lifted when the Schmidt number (Sc), which is the ratio of the dynamic viscosity to the mass diffusivity, is greater than unity. In this study, the flame lift-off characteristics of non-premixed flames of propane (Sc > 1) and methane (Sc < 1) in a coaxial outer air tube were experimentally compared. The experimental results indicated that stable lifted flames could be obtained even when Sc < 1 in a confined air tube. On the basis of the results of a simple numerical analysis, it was confirmed that a new flame stabilization mechanism exists in the tube. A velocity field is preferentially developed upstream of the flame, and it results in a new stabilization condition. This result can be very useful in explaining the stabilization of the flames of ordinary burners in which a flame is produced in a confined space. © 2011 The Korean Society of Mechanical Engineers. | - |
dc.format.extent | 8 | - |
dc.language | 한국어 | - |
dc.language.iso | KOR | - |
dc.publisher | Korean Society of Mechanical Engineers | - |
dc.title | Basic study on lift-off characteristics of non-premixed flames of methane-air jet in a tube | - |
dc.type | Article | - |
dc.identifier.doi | 10.3795/KSME-B.2011.35.4.431 | - |
dc.identifier.bibliographicCitation | Transactions of the Korean Society of Mechanical Engineers, B, v.35, no.4, pp 431 - 438 | - |
dc.identifier.kciid | ART001537512 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-79955136320 | - |
dc.citation.endPage | 438 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 431 | - |
dc.citation.title | Transactions of the Korean Society of Mechanical Engineers, B | - |
dc.citation.volume | 35 | - |
dc.type.docType | Article | - |
dc.publisher.location | 대한민국 | - |
dc.subject.keywordAuthor | Coaxial jet | - |
dc.subject.keywordAuthor | Flame in a tube | - |
dc.subject.keywordAuthor | Flame stabilization | - |
dc.subject.keywordAuthor | Lifted flame | - |
dc.subject.keywordAuthor | Methane-air flame | - |
dc.subject.keywordPlus | Coaxial jet | - |
dc.subject.keywordPlus | Flame in a tube | - |
dc.subject.keywordPlus | Flame stabilization | - |
dc.subject.keywordPlus | Lifted flames | - |
dc.subject.keywordPlus | Methane-air flame | - |
dc.subject.keywordPlus | Methane | - |
dc.subject.keywordPlus | Numerical analysis | - |
dc.subject.keywordPlus | Propane | - |
dc.subject.keywordPlus | Scandium | - |
dc.subject.keywordPlus | Stabilization | - |
dc.subject.keywordPlus | Tubes (components) | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
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