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TECHNICAL PAPERS: Gas Turbines: Combustion and Fuels

Rapid Liquid Fuel Mixing for Lean-Burning Combustors: Low-Power Performance

[+] Author and Article Information
M. Y. Leong, C. S. Smugeresky, V. G. McDonell, G. S. Samuelsen

UCI Combustion Laboratory University of California Irvine, CA 92697-3550

J. Eng. Gas Turbines Power 123(3), 574-579 (Jan 01, 2001) (6 pages) doi:10.1115/1.1362318 History: Received February 01, 2000; Revised January 01, 2001
Copyright © 2001 by ASME
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References

Lyons,  V. J., 1981, “Fuel/Air Nonuniformity—Effect on Nitric Oxide Emissions,” AIAA J., 20, pp. 660–665.
Fric,  T. F., 1993, “Effects of Fuel-Air Unmixedness on NOx Emissions,” J. Propul. Power , 9, pp. 708–713.
Lefebvre, A. H., 1999, Gas Turbine Combustion, 2nd ed., Taylor and Francis, Philadelphia, PA.
Shih, W. P., Lee, J. G., and Santavicca, D. A., 1996, “Stability and Emissions Characteristics of a Lean Premixed Gas Turbine Combustor,” Twenty-Sixth Symposium (International) on Combustion, pp. 2771–2778.
Dutta,  P., Gore,  J. P., and Sojka,  P. E., 1997, “Emissions Characteristics of Liquid-Fueled Pilot Stabilized Lean Premixed Flames in a Tubular Premixer-Combustor,” J. Eng. Gas Turbines Power, , 119, pp. 585–590.
Tacina, R. R., 1990, “Low-NOx Potential of Gas Turbine Engines,” AIAA Paper 90–0550.
Shaffar, S. W., Sowa, W. A., and Samuelsen, G. S., 1995, “Lean Burn Injector for Gas Turbine Combustor,” U.S. Patent No. 5,477,685, 26 December.
Shaffar,  S. W., and Samuelsen,  G. S., 1998, “A Liquid Fueled, Lean Burn, Gas Turbine Combustor Injector,” Combust. Sci. Technol. 139, pp. 41–57.
Lorenzetto,  G. E., and Lefebvre,  A. H., 1977, “Measurements of Drop Size on a Plain Jet Airblast Atomizer,” AIAA J., 15, pp. 1006–1010.
Samuelsen, G. S., 1975, “The Combustion Aspects of Air Pollution,” in Advances in Environmental Science and Technology, John Wiley & Sons, New York, Vol. 5. pp. 219–322.
Lefebvre,  A. H., 1984, “Fuel Effects on Gas Turbine Combustion—Liner Temperature, Pattern Factor, and Pollutant Emissions,” J. Aircr., 21, No. 11, pp. 887–898.
Rizk,  N. K., and Mongia,  H. C., 1993, “Semi-analytical Correlations for NOx, CO, and UHC Emissions,” J. Eng. Gas Turbines Power, 115, pp. 612–619.
Lefebvre,  A. H., 1992, “Twin Fluid Atomization: Factors Including Mean Drop Size,” Atomization Sprays 2, pp. 101–119.
Rink,  K. K., and Lefebvre,  A. H., 1989, “The Influence of Fuel Composition and Spray Characteristics on Nitric Oxide Formation,” Combust. Sci. Technol. 68, pp. 1–14.
Leong, M. Y., McDonell, V. G., and Samuelsen, G. S., 1998, “Effect of Ambient Pressure on an Airblast Spray Injected into a Crossflow,” AIAA Paper 98-3903.

Figures

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LBI injector, swirler, and quarl assembly
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LBI injector, combustor in elevated pressure facility
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Radial emissions profile for the 4 atm/8 percent DP case
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Standard deviation values indicating radial profile uniformity at different equivalence ratios
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Bulk temperature measured 106 mm downstream of quarl throat
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LBI combustion efficiencies at the various operating conditions
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Spatially averaged NOx emission indices overlaid with LPP predictions from Lefebvre 10
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Droplet D32 as predicted by the Lorenzetto and Lefebvre correlation 9
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Upper spray penetration predicted by modified correlation of Leong et al. 15

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