The Effect of Alternative Turbine Cooling Schemes on the Performance of Utility Gas Turbine Powerplants PUBLIC ACCESS

[+] Author Affiliations
Arthur Cohn

Electric Power Research Institute, Palo Alto, CA

Mark Waters

Waters and Associates, Sunnyvale, CA

Paper No. 82-JPGC-GT-19, pp. V001T01A019; 10 pages
  • 1982 Joint Power Generation Conference: GT Papers
  • 1982 Joint Power Generation Conference: GT Papers
  • Denver, Colorado, USA, October 17–21, 1982
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7937-5
  • Copyright © 1982 by ASME


It is important that the requirements and cycle penalties related to the cooling of high temperature turbines be thoroughly understood and accurately factored into cycle analyses and power plant systems studies.

Various methods used for the cooling of high temperature gas turbines are considered and cooling effectiveness curves established for each. These methods include convection, film and transpiration cooling using compressor bleed and/or discharge air. In addition, the effects of chilling the compressor discharge cooling gas are considered.

Performance is developed to demonstrate the impact of the turbine cooling schemes on the heat rate and specific power of Combined–Cycle power plants.

Copyright © 1982 by ASME
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