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TECHNICAL PAPERS: Gas Turbines: Combustion and Fuels

Experimental and Theoretical Studies of a Novel Venturi Lean Premixed Prevaporized (LPP) Combustor

[+] Author and Article Information
N. A. Ro̸kke, A. J. W. Wilson

Rolls-Royce, Ulstein Turbine AS, N-5811 Bergen, Norway

J. Eng. Gas Turbines Power 123(3), 567-573 (Oct 01, 2000) (7 pages) doi:10.1115/1.1377008 History: Received October 01, 1999; Revised October 01, 2000
Copyright © 2001 by ASME
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References

Nicol, D. G., Malte, P. C., and Steele, R. C., 1994, “Simplified Models for NOx production Rates in Lean-Premixed Combustion,” ASME paper 94-GT-432.
Correa,  S. M., 1992, “A Review of NOx Formation Under Gas Turbine Combustion Conditions,” Combust. Sci. Technol., 87, pp. 329–362.
Spadaccini,  L. J., and TeVelde,  J. A., 1982, “Autoignition Characteristics of Aircraft-Type Fuels,” Combust. Flame, 46, pp. 283–300.
Ripplinger, T., Zarzalis, N., Meikis, G., Hassa, C., and Brandt, M., 1999, “NOx Reduction by Lean Premixed Prevaporized Combustion,” NATO-RTO/MP/14-paper #7.
Gran,  I. R., and Magnussen,  B. F., 1996, “A Numerical Study of a Bluff-Body Stabilised Diffusion Flame. Part 2, Influence on Combustion Modelling and Finite Rate Chemistry,” Combust. Sci. Technol., 19, pp. 191–217.
Ro̸kke, N. A., Hustad, J. E., and Berg, S, 1993, “Pollutant Emissions From Gas Fired Turbine Engines in Offshore Practice–Measurements and Scaling,” ASME paper 93-GT-170.
Leonard, G., and Stegmaier, J., 1993, “Development of an Aeroderivative Gas Turbine Dry Low Emissions Combustion System,” ASME paper 93-GT-288.

Figures

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Venturi characteristics
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Venturi pressure drop and velocity
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Delay time versus temperature and pressure
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Flametube thermal paint pattern—diesel fuel
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Wall temperatures from computational fluid dynamics (CFD) calculation including reaction, methane
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Secondary venturi cone temperature
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Computational fluid dynamics (CFD) calculation with symmetrical inlet conditions
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Complete combustor computational fluid dynamics (CFD) analysis, swirl effect
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Engine emission test results, diesel fuel
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Schematic view of low emissions range

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