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Developments Leading to an Axial Flow Compressor for a 25 MW Class High Efficiency Gas Turbine FREE

[+] Author Affiliations
Y. Kashiwabara, Y. Katoh, H. Ishii, T. Hattori, Y. Matsuura, T. Sasada

Hitachi, Ltd., Hitachi, Ibaraki, Japan

Paper No. 90-GT-238, pp. V001T01A085; 9 pages
doi:10.1115/90-GT-238
From:
  • ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Brussels, Belgium, June 11–14, 1990
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7904-7
  • Copyright © 1990 by ASME

abstract

In this paper, the development leading to a 17-stage axial flow compressor (pressure ratio 14.7) for the 25 MW class heavy duty gas turbine H-25 is described. In the course of developing the H-25’s compressor, extensive measurements were carried out on models. Experimental results are compared with predicted values. Aerodynamic experiments covered the measurements of unsteady flows such as rotating stall and surge as well as the steady-state performance of the compressor.

Based on the results of these tests, the aerodynamic and mechanical design parameters of the full scale H-25 compressor were finalized on the basis of two model compressors.

Detailed measurements of the first unit of the H-25 gas turbine were carried out. Test results on the compressor are presented and show the achievement of the expected design targets.

Copyright © 1990 by ASME
This article is only available in the PDF format.

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