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TECHNICAL PAPERS: Gas Turbines: Combustion and Fuels

A Novel Approach to the Optimization of Reaction Rate Parameters for Methane Combustion Using Multi-Objective Genetic Algorithms

[+] Author and Article Information
L. Elliott, D. B. Ingham

Department of Applied Mathematics, University of Leeds, Leeds LS2 9JT, UK

A. G. Kyne, N. S. Mera, M. Pourkashanian

Energy & Resources Research Institute, University of Leeds, Leeds LS2 9JT, UK  

C. W. Wilson

Department of Mechanical Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, UK

J. Eng. Gas Turbines Power 126(3), 455-464 (Aug 11, 2004) (10 pages) doi:10.1115/1.1760531 History: Received October 01, 2002; Revised March 01, 2003; Online August 11, 2004
Copyright © 2004 by ASME
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Figures

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The reaction rate k for the reaction O+H2⇔H+OH given by the inversion procedures employed in various GA formulations in comparison with the original reaction rate and the NIST constraints imposed on the reaction rate
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The mole fractions of O2 for various temperatures, as calculated by PSR using the reaction mechanisms generated by the inverse GA formulations considered
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The mole fractions of CO2 for various temperatures, as calculated by PSR using the reaction mechanisms generated by the inverse GA formulations considered
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The profiles of the mole fractions above the burner, for O2 as calculated by PREMIX using various reaction mechanisms
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The profiles of the mole fractions above the burner, for CO2, as calculated by PREMIX using various reaction mechanisms
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The profiles of the mole fractions above the burner, for (a) O2 and (b) CO2, as calculated by PREMIX at an air/fuel ratio Φ=2.5 using various reaction mechanisms
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Mole fraction concentration profiles of (a) CH3, (b) CO, (c) O, (d) OH, (e) H, and (f) HCO as a function of distance from burner surface for a premixed, stoichiometric, 12.5% methane/25% oxygen/62.5% argon flame at 20 Torr. ▪, experimental data of Bernstein et al. 18. (g) Flame velocity as a function of equivalence ratio for a methane/air mixture at 1 atm and Tu=298 K. •, experimental data of Taylor 20; ▪, experimental data of Vagelopoulos et al. 19. (h) Ignition delay times in a 0.2% methane/2% oxygen/97.8% argon mixture. •, experimental data of Tsuboi and Wagner 21 for pressures=3–4 atm, T=16,500–2050 K; ▪, experimental data of Tsuboi and Wagner 21 for pressure=21–29 atm, T=1400–2000 K.

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