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The Advanced Cooling Technology for the 1500 °C Class Gas Turbines: The Steam Cooled Vanes and the Air Cooled Blades FREE

[+] Author Affiliations
H. Nomoto, A. Koga, S. Ito, S. Shibuya

Toshiba Corporation, Yokohama, Japan

Y. Fukuyama, F. Otomo

Toshiba Corporation, Kawasaki, Japan

M. Sato, Y. Kobayashi, H. Matsuzaki

Tohoku Electric Power Co., Inc., Sendai, Japan

Paper No. 96-GT-016, pp. V004T10A011; 10 pages
doi:10.1115/96-GT-016
From:
  • ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration
  • Birmingham, UK, June 10–13, 1996
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7875-0
  • Copyright © 1996 by ASME

abstract

It is very essential to raise the thermal efficiency of combined cycle plants from the viewpoint of energy saving and environmental protection. Tohoku Electric Power Co., Inc. and Toshiba Corporation in Japan have jointly studied the next generation of combined cycle system using 1500 °C class gas turbine.

A promising cooling technology for the vanes using steam was developed. The blades are cooled by air, adopting the impingement cooling, the film cooling and so on. The cooling effectiveness was confirmed both for the vanes and the blades using hot wind tunnel. This paper describes the design features of the vanes and the blades, and the results of the verification tests using hot wind tunnel.

Copyright © 1996 by ASME
This article is only available in the PDF format.

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