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Skeletal Mechanisms for n-Heptane Combustion

[+] Author Affiliations
N. Slavinskaya, B. Noll

German Aerospace Center (DLR), Stuttgart, Germany

Paper No. GT2006-90958, pp. 743-752; 10 pages
doi:10.1115/GT2006-90958
From:
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 1: Combustion and Fuels, Education
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4236-3 | eISBN: 0-7918-3774-2
  • Copyright © 2006 by ASME

abstract

In order to predict with CFD codes the ignition of kerosene including pollution formation it is necessary to develop a reduced mechanism, which can be incorporated into the code and applied without dramatically increasing the turn-around time. The practical global chemical schemes, which reflect the combustion properties for large a range of parameters in the combustion chamber, can be developed on the base of a skeletal mechanism. These mechanisms are established applying analytical reduction methods to detailed mechanisms. The first reduction of n-heptane detailed mechanism, which is a part of a reference model for practical fuels, was performed to model the heat release of kerosene for equivalent ratios of 0.5–2, initial temperatures of 700–1400 K and initial pressures of 6.5–55.0 bar. The final skeletal mechanism consists of 47 species and 378 irreversible reactions and predicts reasonably well the experimental data of ignition delay times for the given combustion parameters.

Copyright © 2006 by ASME

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