대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제32권12호
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  • Pages.970-976
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  • 2008
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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초기 온도 변화를 갖는 동축류 제트에서 메탄 난류 부상화염의 특성

Characteristics of Methane Turbulent Lifted Flames in Coflow Jets with Initial Temperature Variation

  • 발행 : 2008.12.01
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초록

Characteristics of methane turbulent non-premixed flame have been studied experimentally in coflow jets with initial temperature variation. The results showed that the premixed flame model and the large-scale mixing model for turbulent flame stabilization were effective for methane fuel considered initial temperature variation. Especially, the premixed flame model has been improved by considering nitrogen dilution for the liftoff height of turbulent lifted flame. In estimating blowout velocity and the liftoff height at blowout with the premixed flame model and the large-scale mixing model, the two turbulent models were excellently correlated by considering the effect of physical properties and buoyancy for the initial temperature variation.

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참고문헌

  1. Vanquickenborne, L. and van Tigglen, A., 1983, "The Stabilization Mechanism of Lifted Diffusion Flames," Combust. Flame 10, pp. 59-69 https://doi.org/10.1016/0010-2180(66)90028-9
  2. Kalghatgi, G.T., 1984, "Lift-off Heights and Visible Lengths of Vertical Turbulent Jet Diffusion Flames in Still Air," Combust. Sci. Technol. Vol. 41, pp. 17-29 https://doi.org/10.1080/00102208408923819
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  5. Miake-Lye, R. C. and Hammer, J. A., 1988, "Lifted Turbulent Jet Flames: A Stability Criterion Based on the Jet Large-Scale Structure," Proc. Combust. Inst. 22, pp. 817-824
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  8. Lee, B.J., Kim, J.S. and Chung, S.H., 1994, "Effect of Dilution on the Liftoff of Nonpremixed Jet Flames," Proc. Combust. Inst. 25, pp. 1175-1181
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피인용 문헌

  1. Effect of Ignition Delay Time on Autoignited Laminar Lifted Flames vol.35, pp.10, 2011, https://doi.org/10.3795/KSME-B.2011.35.10.1025
  2. Effect of Hydrogen Addition on Autoignited Methane Lifted Flames vol.36, pp.1, 2012, https://doi.org/10.3795/KSME-B.2012.36.1.075