Journal of Mechanical Science and Technology

  • 제16권9호
  • /
  • Pages.1156-1165
  • /
  • 2002
  • /
  • 1738-494X(pISSN)
  • /
  • 1976-3824(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지

Combustion and Radiation Characteristics of Oxygen-Enhanced Inverse Diffusion Flame

  • Hwang, Sang-Soon (Department of Mechanical Engineering University of Inchon) ;
  • Gore, Jay-P (School of Mechanical Engineering Purdue University West Lafayette)
  • 발행 : 2002.09.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The characteristics of combustion and radiation heat transfer of an oxygen-enhanced diffusion flame was experimentally analyzed. An infrared radiation heat flux gauge was used to measure the thermal radiation of various types of flames with fuel, air and pure oxygen. And the Laser Induced Incandescence (LII) technique was applied to characterize the soot concentrations which mainly contribute to the continuum radiation from flame. The results show that an oxygen-enhanced inverse diffusion flame is very effective in increasing the thermal radiation compared to normal oxygen diffusion flame. This seems to be caused by overlapped heat release rate of double flame sheets formed in inverse flame and generation of higher intermediate soot in fuel rich zone of oxygen-fuel interface, which is desirable to increase continuum radiation. And the oxygen/methane reaction at slight fuel rich condition (ø=2) in oxygen-enhanced inverse flame was found to be more effective to generate the soot with moderate oxygen availability.

키워드

참고문헌

  1. Baukal, C. E., 1997, Oxygen Enhanced Combustion, pp. 2-44
  2. Beltrame, A. et al., 2001, 'Soot and NO Formation in Methane-Oxygenenhanced Diffusion Flames,' Combustion and Flame, Vol. 124, pp. 295-310 https://doi.org/10.1016/S0010-2180(00)00185-1
  3. Brookes, S. J. and Moss, J. B., 1999, 'Measurements of Production Thermal Radiation From Confined Turbulent Jet Diffusion Flames of Methane,' Combustion and Flame, 116 : pp. 49-61 https://doi.org/10.1016/S0010-2180(98)00027-3
  4. Chales. E., Baukal, C. E. and Benjamin, 1997, 'Oxygen-Enriched/Natural Gas Flame Radiation,' International Journal of Heat Transfer, Vol. 40, No. 11, pp. 2539-2547 https://doi.org/10.1016/S0017-9310(96)00307-9
  5. Gore, J. P. and Feath, G. M., 1986, 'Structure and Spectral Radiation Properties of Turbulent Ethylene/Air Diffusion Flames,' Twenty-first Symposium (International) on Combustion/The Combustion Institute, pp. 1521-1531
  6. Gore, J. P. et al., 1999, 'A Study of the Effects of Thermal Radiation on the Structure of Methance/Air Counter-flow Diffusion Flames Using Detailed Chemical Kinetics,' Proceedings of the 5th ASME/JSME Joint Thermal Engineering Conference (CD), Paper AJTE99-6311, p. 50 (Book of Abstracts)
  7. Melton, L. A., 1984, 'Soot Diagnostics Based on Laser Heating,' Applied Optics, 23, pp. 221-2208
  8. Sergei, A. Z. et al., 2000, 'Relative Effect of Acetylene ans PSAHs Addition on Soot Formation in Laminar Diffusion Flames of Methane with Oxygen and Oxygen-Enriched Air,' Combustion and Flame, Vol. 122, pp. 76-89 https://doi.org/10.1016/S0010-2180(00)00104-8
  9. Sivanthanu, Y. R. et al., 1991, 'Transient Scalar Properties of Strongly Radiating Jet Flames,' Combustion Scients and Technology, Vol. 76, pp. 45-66 https://doi.org/10.1080/00102209108951702
  10. Sivanthanu, Y. R. and Gore, J. P., 1992, 'Transient Structure and Radiation Properties of Strongly Radiating Buoyant Flames,' Journal of Heat Transfer, Vol. 114, pp. 659-665 https://doi.org/10.1115/1.2911331
  11. Turns, S. R., 1996, An Introduction to Combustion, pp. 291-295
  12. Zheng, Y. and Gore, J. P., 2001, 'Time Series Simulation on Radiation from Turbulent CH4/H2/N2 Flames,' Proceedings of the Second Joint Meeting of the U. S. Sections of the Combustion Institute (CD)