Thermal and chemical characteristics of the flames obtained from an industrial size regenerative combustion furnace have been obtained spectroscopically. The combustion characteristics of diffusion or premixed flames in the regenerative high-temperature air combustion facility have been examined using coal gas as the fuel. The fuel gas composition consisted of hydrocarbon, CO, and Monochromatic images of the flames have been observed in the emission mode using a CCD camera fitted with an optical band pass filter at the desired wavelength. The two-dimensional temperature distribution in the furnace has been determined using the two-line method by utilizing the Swan emission bands from within the flame. The emission intensity profiles of NO, as well as OH and CH radicals have also been observed spectroscopically. The results showed quite uniform two-dimensional temperature distribution and emission intensity of OH and CH radical species for the diffusion flame case as compared to the premixed case using high-temperature combustion air. The premixed flame case showed high local values and large fluctuations in the combustion zone for both emission intensity and temperature distribution. The temperature distribution of soot particles in the premixed flame was also determined using the two-color optical method. The results showed high local value of temperature, similar to that found for the gas temperature using signatures for species at two different wavelengths. In contrast the distribution of temperature for soot particles was different. The location of the maximum soot temperature shifted to downstream positions of the flame as compared to the maximum gas temperature regions measured from the species. The experimental results are discussed in conjunction with those obtained from the heat simulation analyses.
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January 2004
Technical Papers
Two-Dimensional Spectroscopic Observation of Nonluminous Flames in a Regenerative Industrial Furnace Using Coal Gas
Y. Hino,
Y. Hino
Materials and Processing Research Center, NKK Corporation, 1 Kokan-cho, Fukuyama, Hiroshima 721-8510, Japan
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S. Sugiyama,
S. Sugiyama
NK Techno Service Corporation, 1-1 Minamiwatarida-cho, Kawasaki-ku, Kasawaki 210-0855, Japan
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Y. Suzukawa,
Y. Suzukawa
Fukuyama Works, NKK Corporation, 1 Kokan-cho, Fukuyama, Hiroshima 721-8510, Japan
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I. Mori,
I. Mori
Fukuyama Works, NKK Corporation, 1 Kokan-cho, Fukuyama, Hiroshima 721-8510, Japan
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N. Konishi,
N. Konishi
Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
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T. Ishiguro,
T. Ishiguro
Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
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K. Kitawawa,
K. Kitawawa
Research Center for Advanced Energy Conversion, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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A. K. Gupta
A. K. Gupta
Department of Mechanical Engineering, University of Maryland, College Park, MD 20742
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Y. Hino
Materials and Processing Research Center, NKK Corporation, 1 Kokan-cho, Fukuyama, Hiroshima 721-8510, Japan
S. Sugiyama
NK Techno Service Corporation, 1-1 Minamiwatarida-cho, Kawasaki-ku, Kasawaki 210-0855, Japan
Y. Suzukawa
Fukuyama Works, NKK Corporation, 1 Kokan-cho, Fukuyama, Hiroshima 721-8510, Japan
I. Mori
Fukuyama Works, NKK Corporation, 1 Kokan-cho, Fukuyama, Hiroshima 721-8510, Japan
N. Konishi
Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
T. Ishiguro
Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
K. Kitawawa
Research Center for Advanced Energy Conversion, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
A. K. Gupta
Department of Mechanical Engineering, University of Maryland, College Park, MD 20742
Contributed by the Fuels and Combustion Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the C&F Division November 2001; final revision received April 2003. Associate Editor: S. Gollahalli.
J. Eng. Gas Turbines Power. Jan 2004, 126(1): 20-27 (8 pages)
Published Online: March 2, 2004
Article history
Received:
November 1, 2001
Revised:
April 1, 2003
Online:
March 2, 2004
Citation
Hino, Y., Sugiyama, S., Suzukawa , Y., Mori , I., Konishi, N., Ishiguro, T., Kitawawa, K., and Gupta, A. K. (March 2, 2004). "Two-Dimensional Spectroscopic Observation of Nonluminous Flames in a Regenerative Industrial Furnace Using Coal Gas ." ASME. J. Eng. Gas Turbines Power. January 2004; 126(1): 20–27. https://doi.org/10.1115/1.1610010
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