[KSCI] Korea Science Citation Index Service

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)

Publication Information

Journal of Mechanical Science and Technology / v.16, no.9, 2002 , pp. 1156-1165 More about this Journal

Abstract

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.

Keywords

Oxygen-Enhanced Inverse Diffusion Flame; Radiation Heat Transfer; Laser Induced Incandescence;

Citations & Related Records

Reference

1	Beltrame, A. et al., 2001, 'Soot and NO Formation in Methane-Oxygenenhanced Diffusion Flames,' Combustion and Flame, Vol. 124, pp. 295-310 DOI ScienceOn
2	Baukal, C. E., 1997, Oxygen Enhanced Combustion, pp. 2-44
3	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
4	Sivanthanu, Y. R. et al., 1991, 'Transient Scalar Properties of Strongly Radiating Jet Flames,' Combustion Scients and Technology, Vol. 76, pp. 45-66 DOI ScienceOn
5	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 DOI ScienceOn
6	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 DOI ScienceOn
7	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)
8	Melton, L. A., 1984, 'Soot Diagnostics Based on Laser Heating,' Applied Optics, 23, pp. 221-2208
9	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 DOI
10	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 DOI ScienceOn
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)