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CFD Analysis of the Flameless Combustion in a Micro-Gas Turbine

[+] Author Affiliations
Maria Cristina Cameretti, Raffaele Tuccillo

Università di Napoli Federico II, Napoli, Italy

Renzo Piazzesi

University of Brighton, Brighton, UK

Fabrizio Reale

Istituto Motori, CNR, Napoli, Italy

Paper No. GT2009-59750, pp. 275-285; 11 pages
doi:10.1115/GT2009-59750
From:
  • ASME Turbo Expo 2009: Power for Land, Sea, and Air
  • Volume 4: Cycle Innovations; Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine
  • Orlando, Florida, USA, June 8–12, 2009
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4885-2 | eISBN: 978-0-7918-3849-5
  • Copyright © 2009 by ASME

abstract

The concept of flameless combustion as an effective tool for reducing the nitric oxide emission from micro-gas turbines is worthy of an accurate investigation of the thermo-chemical processes inside the combustor. To this aim the authors, basing on their previous experiences on this subject, present a more detailed analysis of the combustion phenomena in a micro-turbine equipped with an exhaust recirculation system. The CFD calculations are extended to the case of liquid fuelling and employ the boundary conditions provided by a preliminary matching analysis. A three dimensional domain is considered for a better evaluation of the temperature and pollutant distributions. In the final part of the paper, the authors discuss an attempt to approach the same flameless regime by exploiting the exhaust recirculation that takes place inside the combustor.

Copyright © 2009 by ASME
Topics: Combustion , Turbines

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