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논문 기본 정보

자료유형
학술대회자료
저자정보
이대근 (한국에너지기술연구원) 마루타 카오루 (Tohoku University)
저널정보
한국연소학회 KOSCO SYMPOSIUM 논문집 2011년도 한국연소학회 제42회 춘계학술대회 KOSCO SYMPOSIUM 논문집
발행연도
2011.5
수록면
85 - 92 (8page)

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Flame propagation characteristics in a meso-scale cylindrical tube, of which diameter is comparable to the classical quenching diameter, was theoretically analyzed. One-dimensional planar flame approximation in a uniform gas flow was used to simplify the analysis, and gas and wall temperatures are also assumed to be a function of only the axial position. The large activation energy asymptotics was used to determine mass burning rate and propagation velocity of the flame. As a result, various flame propagation behaviors, different to those from the classical theory, were predicted. Intense flame-wall interaction exist only for slow moving condition, otherwise the flame behaves almost like a freely propagating nonadiabatic flame. Such interaction can make the flame superadiabatic and also provide an additional stable branch from the classical unstable lower branch. Heat recirculation from the exhaust gas through the wall is positive for such slow moving flame, but it is negative for other flames. It has its maximum value at the blowout point of normal flame on the slow moving branch and at the upper extinction point of sub-limit flame. It is also found that, for a given internal heat convection parameter, the transition velocities between neighboring normal flame branches and the maximum mass burning rate are determined by only one dimensionless parameter, respectively

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ABSTRACT
1. 서론
2. 이론적 해석
3. 해석 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2013-431-000555633