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Intake Air Aerodynamic Silencer Design and Fabrication: GE Frame 7, Model EA GT

[+] Author Affiliations
Steve Ingistov

BP/WCC, Carson, CA

Paper No. GT2005-68380, pp. 119-125; 7 pages
  • ASME Turbo Expo 2005: Power for Land, Sea, and Air
  • Volume 4: Turbo Expo 2005
  • Reno, Nevada, USA, June 6–9, 2005
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4727-6 | eISBN: 0-7918-3754-8
  • Copyright © 2005 by ASME


This Paper describes aerodynamic silencer that is presently installed in one GT Unit in Watson Cogeneration Company, Carson, California, USA. The silencer, made from three sections, was fit into existing Intake Air Duct System (IADS) during March, 2004 Major Inspection (MI). The purpose for original silencer replacement was to reduce IA pressure drops and to minimize continuous dirt carry-over from the old silencer panels into the compressor suction. GT is very sensitive to IA pressure drops and this sensitivity is manifested in GT power output reduction. IA pressure drop reduction alone justified expenditures in replacing the old silencer by new, aerodynamic silencer. Simplified EA presented in this Paper demonstrates good profit in replacing the old silencer with the new, redesigned silencer. In addition to improvements of IA aerodynamics, silencer was designed to capture IA cooling water that did not evaporate and to drain the collected water to designated locations. This Paper also incorporates field test data results, completed by others.

Copyright © 2005 by ASME



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