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Development of a Fuel and Air Mixer for an 11MW Gas Turbine Catalytic Combustion System

[+] Author Affiliations
Robert Corr, Tim Caron, John Barnes

Catalytica Energy Systems, Mountain View, CA

Stefan Meyer, John Battaglioli

Combustion Science and Engineering, Columbia, MD

Tom Howell, Paul Dodge

Belcan Corporation, Phoenix, AZ

Paper No. GT2002-30098, pp. 609-617; 9 pages
  • ASME Turbo Expo 2002: Power for Land, Sea, and Air
  • Volume 1: Turbo Expo 2002
  • Amsterdam, The Netherlands, June 3–6, 2002
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3606-1 | eISBN: 0-7918-3601-0
  • Copyright © 2002 by ASME


This paper describes a fuel and air mixer being developed for an 11 MW gas turbine catalytic combustion system. The fuel is natural gas. The mixer is based loosely on the radial-swirler design used in the XONON™-2.0 combustor, but has an axial swirler and inlet. Features have been incorporated in the design to make it resistant to flameholding. A combination of atmospheric testing and advanced CFD analysis have resulted in a design that is close to meeting its design targets of +/− 5% fuel to air uniformity, +/− 10°C thermal uniformity and 0.5% pressure loss. Modal and thermal stress finite element analyses have been incorporated in the development from its beginning phases to assure that the final design will meet life targets. This mixer is one of two alternative designs being considered for the production version of the catalytic combustion system.

Copyright © 2002 by ASME



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