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Inlet Fogging of Gas Turbine Engines: Part A — Theory, Psychrometrics and Fog Generation

[+] Author Affiliations
Cyrus B. Meher-Homji

Bechtel Corporation, Houston, TX

Thomas R. Mee, III

Mee Industries Inc., Monrovia, CA

Paper No. 2000-GT-0307, pp. V003T03A008; 13 pages
  • ASME Turbo Expo 2000: Power for Land, Sea, and Air
  • Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration
  • Munich, Germany, May 8–11, 2000
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7856-9
  • Copyright © 2000 by ASME


Gas Turbine output is a strong function of the ambient air temperature with power output dropping by 0.3–0.5 % for every 1°F rise in ambient temperature. This loss in output presents a significant problem to utilities, cogenerators and IPPs when electric demands are high during the hot months. In the petrochemical and process industry, the reduction in output of mechanical drive gas turbines curtails plant output. One way to counter this drop in output is to cool the inlet air. The paper contrasts the traditional evaporative cooling technique with direct inlet fogging. The state of the art relating to fog generation and psychrometrics of inlet fogging are described.

Copyright © 2000 by ASME
Topics: Gas turbines



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