A catalytic combustion system has high potential to achieve low emission level. When this combustion system is applied to a gas turbine, the required combustor performance must be maintained over a wide range of operating conditions. These conditions range from cold starting to steady-state operation. Particularly during the initial stage of cold starting when the catalyst is not yet activated, the catalyst must be heated by some means. This study proposes a new concept of a catalytic combustor with a direct heating system using vaporizing tube for starting burner in order to downsize the combustor and reduce the warm-up time during cold starts. The effectiveness of this concept is experimentally verified. Furthermore, CO, and HC emissions during startup can be reduced to a low level so as to achieve ultra-low pollution of the catalytic combustion over a wide range of operating conditions from cold start to steady-state operation. This paper outlines the operation concept covering cold start, verification of the concept through the experiments with flame visualization in the combustor, spray characteristics, construction of the combustor, and combustion characteristics that show low pollution in various operating conditions of the catalytic combustor.
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July 2001
Technical Papers
A High-Temperature Catalytic Combustor With Starting Burner
Y. Yoshida,
Y. Yoshida
Engine and Environmental Research Division, Japan Automobile Research Institute, Inc., Tsukuba, Ibaraki, Japan
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K. Oyakawa,
K. Oyakawa
Advanced Power System Research Division, Japan Automobile Research Institute, Inc., Tsukuba, Ibaraki, Japan
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Y. Aizawa,
Y. Aizawa
Central Technical Research Laboratory, Nippon Mitsubishi Oil Company, Yokohama, Kanagawa, Japan
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H. Kaya
H. Kaya
Human Resources Development Office, Tonen Company, Tokyo, Japan
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Y. Yoshida
Engine and Environmental Research Division, Japan Automobile Research Institute, Inc., Tsukuba, Ibaraki, Japan
K. Oyakawa
Advanced Power System Research Division, Japan Automobile Research Institute, Inc., Tsukuba, Ibaraki, Japan
Y. Aizawa
Central Technical Research Laboratory, Nippon Mitsubishi Oil Company, Yokohama, Kanagawa, Japan
H. Kaya
Human Resources Development Office, Tonen Company, Tokyo, Japan
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Munich, Germany, May 8–11, 2000; Paper 00-GT-087. Manuscript received by IGTI Oct. 1999; final revision received by ASME Headquarters Oct. 2000. Associate Editor: D. Wisler.
J. Eng. Gas Turbines Power. Jul 2001, 123(3): 543-549 (7 pages)
Published Online: October 1, 2000
Article history
Received:
October 1, 1999
Revised:
October 1, 2000
Citation
Yoshida, Y., Oyakawa, K., Aizawa, Y., and Kaya, H. (October 1, 2000). "A High-Temperature Catalytic Combustor With Starting Burner ." ASME. J. Eng. Gas Turbines Power. July 2001; 123(3): 543–549. https://doi.org/10.1115/1.1373397
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