Evaluation of Low-NOx Combustor Concepts for Aeroderivative Gas Turbine Engines

[+] Author and Article Information
J. B. McVey, F. C. Padget, T. J. Rosfjord

United Technologies Research Center, East Hartford, CT 06108

A. S. Hu, A. A. Peracchio, B. Schlein, D. R. Tegel

Pratt and Whitney, Commercial Engine Business, East Hartford, CT 06108

J. Eng. Gas Turbines Power 115(3), 581-587 (Jul 01, 1993) (7 pages) doi:10.1115/1.2906746 History: Received February 06, 1992; Online April 24, 2008


An experimental program was conducted to evaluate low-NOx combustor concepts applicable to natural-gas-burning aeroderivative gas turbine engines operating at a nominal pressure ratio of 20:1. Gas sampling measurements at the exit of the primary zone of high-shear and lean premixed burners were acquired under elevated entrance pressure and temperature conditions over a range of primary zone equivalence ratios. Piloting systems were incorporated in most of the burner designs to achieve satisfactory burner operability. Both swirl stabilized and perforated-plate (grid) stabilized burners were found to produce NOx levels lower than the current engine goal of 25 ppm (15 percent O2 ).

Copyright © 1993 by The American Society of Mechanical Engineers
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