The development of air-cooled ceramic nozzle vanes for a power-generating gas turbine has been reported. To make up the limited temperature resistance of present ceramic materials, the utilization of a small amount of cooling air has been studied for the first-stage nozzle vanes of a 1500°C class gas turbine. A series of cascade tests were carried out for the designed air-cooled Si3N4 nozzle vanes under 6 atm and 1500°C conditions. It was confirmed that the maximum ceramic temperature can be maintained below 1300°C by a small amount of cooling air. In spite of the increased thermal stresses from local cooling, all Si3N4 nozzle vanes survived the cascade tests, including both steady-state and transients of emergency shutdown. The potential for an air-cooled ceramic nozzle was demonstrated for a 1500°C class gas turbine application.
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October 1996
Research Papers
Development of Air-Cooled Ceramic Nozzles for a Power-Generating Gas Turbine Available to Purchase
T. Tsuchiya,
T. Tsuchiya
Engineering R&D Center, Tokyo Electric Power Company, Yokohama, Kanagawa, Japan
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Y. Furuse,
Y. Furuse
Engineering R&D Center, Tokyo Electric Power Company, Yokohama, Kanagawa, Japan
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S. Yoshino,
S. Yoshino
Engineering R&D Center, Tokyo Electric Power Company, Yokohama, Kanagawa, Japan
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R. Chikami,
R. Chikami
Takasago Machinery Works, Mitsubishi Heavy Industries, Ltd., Takasago, Hyogo, Japan
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Y. Tsukuda,
Y. Tsukuda
Takasago Machinery Works, Mitsubishi Heavy Industries, Ltd., Takasago, Hyogo, Japan
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M. Mori
M. Mori
Takasago R&D Center, Mitsubishi Heavy Industries, Ltd., Takasago, Hyogo, Japan
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T. Tsuchiya
Engineering R&D Center, Tokyo Electric Power Company, Yokohama, Kanagawa, Japan
Y. Furuse
Engineering R&D Center, Tokyo Electric Power Company, Yokohama, Kanagawa, Japan
S. Yoshino
Engineering R&D Center, Tokyo Electric Power Company, Yokohama, Kanagawa, Japan
R. Chikami
Takasago Machinery Works, Mitsubishi Heavy Industries, Ltd., Takasago, Hyogo, Japan
Y. Tsukuda
Takasago Machinery Works, Mitsubishi Heavy Industries, Ltd., Takasago, Hyogo, Japan
M. Mori
Takasago R&D Center, Mitsubishi Heavy Industries, Ltd., Takasago, Hyogo, Japan
J. Eng. Gas Turbines Power. Oct 1996, 118(4): 717-723 (7 pages)
Published Online: October 1, 1996
Article history
Received:
February 13, 1995
Online:
November 19, 2007
Connected Content
A companion article has been published:
The Effects of Adverse Pressure Gradients on Momentum and Thermal Structures in Transitional Boundary Layers: Part 2—Fluctuation Quantities
Citation
Tsuchiya, T., Furuse, Y., Yoshino, S., Chikami, R., Tsukuda, Y., and Mori, M. (October 1, 1996). "Development of Air-Cooled Ceramic Nozzles for a Power-Generating Gas Turbine." ASME. J. Eng. Gas Turbines Power. October 1996; 118(4): 717–723. https://doi.org/10.1115/1.2816986
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