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Design of a Jet-Stirred Gas Generator for Studies of High Temperature Mixing and Combustion

[+] Author Affiliations
C. G. Fotache, D. J. Hautman, T. J. Rosfjord

United Technologies Research Center, East Hartford, CT

Paper No. 2000-GT-0127, pp. V002T02A046; 8 pages
doi:10.1115/2000-GT-0127
From:
  • ASME Turbo Expo 2000: Power for Land, Sea, and Air
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Munich, Germany, May 8–11, 2000
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7855-2
  • Copyright © 2000 by ASME

abstract

A high-temperature Jet-Stirred Gas Generator (JSGG) has been designed to investigate the characteristics of combustion in the mixing layer between a flow of air and a mainstream flow of rich combustion products. The design goal is delivery of a near-equilibrium, spatially-uniform flow of combustion products for a range of Mach numbers in the test section between 0.1–0.7, pressures of 1–10 atm, and equivalence ratios of 0.5–2.0. In this paper we describe the reactor design, as well as the numerical and experimental evaluation of its operation. The FLUENT turbulent flow code was used together with a reduced chemical kinetic model for propane-air oxidation to verify the attainment of well-mixed, near-equilibrium conditions. Experiments were performed using flow sampling at the inlet of the test section by means of an optimized aerodynamic-quench probe. Both the experiments and the calculated results indicate achievement of the design goals.

Copyright © 2000 by ASME

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