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Performance of JP-8 Surrogates and Parent Species in a Swirl Combustor

[+] Author Affiliations
Viswanath R. Katta

Innovative Scientific Solutions, Inc., Dayton, OH

William M. Roquemore

Wright Laboratory, WPAFB, OH

Paper No. GT2010-22301, pp. 223-233; 11 pages
  • ASME Turbo Expo 2010: Power for Land, Sea, and Air
  • Volume 2: Combustion, Fuels and Emissions, Parts A and B
  • Glasgow, UK, June 14–18, 2010
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4397-0 | eISBN: 978-0-7918-3872-3
  • Copyright © 2010 by ASME


Swirl-stabilized combustor utilizes recirculation zones for stabilizing the flame. A numerical study is conducted for understanding the effect of recirculation zones on the combustion of practical fuels in this burner. A time-dependent, detailed-chemistry CFD model UNICORN is used. JP-8 fuel is modeled using two independently proposed surrogate mixtures. A semi-detailed chemical-kinetics model involving 161 species and 1538 reactions is incorporated into UNICORN code for describing the combustion of these surrogate mixtures. Calculations are performed for fuel-lean, stoichiometric, and fuel-rich conditions. Flames simulated with different surrogate mixtures in all three equivalence-ratio cases yielded nearly the same structures even though the two surrogate mixtures are very different in chemical composition. For understanding the role of individual parent species in the surrogate mixtures, calculations for the swirl combustor are repeated after replacing the surrogate fuel with one of its parent species. Detailed comparisons of flames generated with different parent species revealed significant variations in flame structures. However, the flames generated by the surrogate mixtures are nearly similar—suggesting that these mixtures are formulated for representing the same JP-8 fuel.

Copyright © 2010 by ASME



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