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

  • 제29권7호
  • /
  • Pages.861-867
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  • 2005
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  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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순 산소 연소기 개발을 위한 노즐직경변화에 따른 화염길이 특성

Flame Length Characteristic for Varying Nozzle Diameter to Develop Oxy-Fuel Combustor

  • 김호근 (한양대학교 대학원 기계공학과) ;
  • 김용모 (한양대학교 기계공학부)
  • 발행 : 2005.07.01
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초록

In order to develop oxy-fuel combustor, the Flame length characteristic of $CH_4$ with oxidizer of air and oxygen has been experimentally investigated for tile nozzle diameters of 1.6mm, 2.7mm, 4.4mm and 7.7mm. The structure of $CH_4$ flame with oxidizer of oxygen was sharp in contrast with the $CH_4$ flame with oxidizer of air. The stability of $CH_4$ flame with oxidizer of oxygen was higher than $CH_4$ flame with oxidizer of air. In all $CH_4$ flames with oxidizer of air and oxygen, the flame length were dependent on the flowrate in laminar flame regime, and in turbulent flame dependent on the initial jet diameter. Using correlation equation of Delichatsios, the flame length has been expected exactly for $CH_4$ flame with oxidizer of air, but underestimated for $CH_4$ flame with oxidizer of oxygen. This paper proposed correlation equation of $CH_4$ flame with oxidizer of oxygen.

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참고문헌

  1. Charles, E. Baukal, 1998, 'Oxygen-Enhanced Combustion,' CRC Press, Ph.D.
  2. Cha, M.S., Kim, H.K., Kim, H.S. and Ahn, K.Y., 2003, 'Effects of $CO_{2}$ Recirculation on Turbulent Jet Diffusion Flames with Pure Oxygen,' KOSCO SYMPOSIUM, the 26, pp. 255-260
  3. Kim, H.S., Kim, H.K., Ahn, K.Y. and Kim, Y.M., 2004, 'Characteristics for Effects of $CO_{2}$ Addition to Oxygen-Enriched Combustion,' Trans. of the KSME(B), Vol. 28, No. 1, pp. 9-15
  4. Kim, H.S., Ahn, K.Y., Kim, H.K., Lee, Y.W. and Lee, C.E., 2003, 'A Study on the Characteristics of Combustion for Substituting $CO_{2}$ for $N_{2}$ in Combustion Air,' Journal of KOSCO, Vol. 7, pp. 29-34
  5. Delichatsios, M.A., 1981, 'String Turbulent Buoyant Plumes. 1. Similarity,' Combustion Science and Technology, Vol. 24, pp. 191-195 https://doi.org/10.1080/00102208008952437
  6. Delichatsios, M.A., 1988, 'On the Similarity of Velocity and Temperature Profiles in String (Variable Density) Turbulent Buoyant Plumes,' Combustion Science and Technology, Vol. 60, pp. 253-266 https://doi.org/10.1080/00102208808923987
  7. Delichatsios, M.A., 1993, 'Transition from Momentum to Buoyancy-Controlled Turbulent Jet Diffusion Flames and Flame Height Relationships,' Combustion and Flame, Vol. 92, pp. 349-364 https://doi.org/10.1016/0010-2180(93)90148-V
  8. Pitts, W. M., 1988, 'Assessment of Theories for The Behavior and Blowout of Lifted Turbulent Jet Diffusion Flames,' 22th symposium on combustion, pp. 809-816
  9. Wohl, K., Gazley, C. and Kapp, N., 1949, 'Diffusion Flame,' Third Symposium on Combustion and Flame and Explosion Phenomena, pp. 288-299
  10. Turns, S.R., 2000, 'An Introduction to Combustion,' McGraw-Hill, New York, p. 316
  11. Kalghatgi, G.T., 1983, 'Personal Communication-Flame Height Raw Data,' the 9th International Colloquium on Gas dynamics of Explosion and Reactive Systems, Poiters, Fance