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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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.
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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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