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TECHNICAL PAPERS: Gas Turbines: Combustion and Fuels

Integrated Experimental and Numerical Approach for Fuel-Air Mixing Prediction in a Heavy-Duty Gas Turbine LP Burner

[+] Author and Article Information
G. Mori, S. Razore

Ansaldo Ricerche s.r.l., Corso Perrone 25, Genova I-16152, Italy

M. Ubaldi, P. Zunino

Università di Genova, DIMSET, Via Montallegro 1 Genova I-16145, Italy

J. Eng. Gas Turbines Power 123(4), 803-809 (Oct 01, 2000) (7 pages) doi:10.1115/1.1378297 History: Received October 01, 1999; Revised October 01, 2000
Copyright © 2001 by ASME
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References

Lefebvre, A. H., 1995, “The Role of Fuel Preparation in Low Emission Combustion,” ASME Paper No. 95-GT-465.
Gazzani, F., and Mori, G., 1997, “CFD Modeling of Turbulent Premixed Combustion in a Heavy Duty Gas Turbine,” Fluent Users’ Seminar, Manchester, UK.
Mori, G., Hoffmann, S., and Di Meglio, A., 1997, “Numerical Procedure for Optimization of a Liquid Fuel Premix Burner Injection System,” ILASS Int., Florence.
Hoffmann, S., Judith, H., and Holm, C., 1998, “Further Development of the Siemens LPP Hybrid Burner,” ASME Paper No. 98-GT-552.
Nicol, D., Malte, P. C., Hamer, A. J., Roby, R. J., and Steele, R., 1998, “Development of a Five Step Global Methane Oxidation—NO Formation Mechanism for Lean Premix Gas Turbine Combustion,” ASME Paper No. 98-GT-185.
Rutar, T., Martin, S., Nicol, D. G., Malte, P. C., and Pratt, D. T., 1997, “Effect of Incomplete Premixing on NOx Formation at Temperature and Pressure Condition of LP Combustion Turbine,” ASME Paper No. 97-GT-335.
Dugué, J., Mbiock, A., and Weber, E. R., 1994, “Mixing Characterization in Semi-industrial Natural Gas Flames Using Planar Mie-Scattering Visualization,” Seventh Int. Symp. on Appl. of Laser Techniques to Fluid Mech., Lisbon.
Eaton,  A. R., Frey,  S. F., Cusano,  D. M., Plesniak,  M. W., and Sojka,  P. E., 1996, “Development of a Full-Field Planar Mie Scattering Technique for Evaluating Swirling Mixers,” Exp. Fluids, 21, pp. 325–330.
Coklat, D., 1998, “Advanced Turbulence Modeling,” lecture at “CFD in Combustion Engineering” course, Leeds University, Leeds, UK.
Liever, P. A., Myers, G. D., Hernandez, L., and Griffith, T., 1998, “CFD Assessment of a Wet, Low-NOx Combustion System for a 3 MW-Class Industrial Gas Turbine,” ASME Paper No. 98-GT-292.

Figures

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Effect of combustion chamber sudden expansion of CH4 distribution
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Comparison between experimental and computed data; k–ε and RSM models
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Comparison between experimental and computed data. RSM turbulence model: 01 first-order discretization scheme; 02 second-order discretization scheme. C=0.25: case with Prandtl and Schmidt number reduced to 0.25
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Comparison between experimental and computed data. k–ε turbulence model: 01 first-order discretization scheme; 02 second-order discretization scheme
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Analysis of optimal grid dimension
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Comparison between cold and reactive simulations
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Blade and mixing duct grid view
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Ensemble-averaged local rms of the fuel concentration fluctuation
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Ensemble-averaged normalized local fuel concentration
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Instantaneous normalized local fuel concentration
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Sketch of the HR burner (from Paper No. 98-GT-552)

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