Effects of Major Design and Operating Parameters on Achieving Low Emissions From Gas Turbine Combustors

[+] Author and Article Information
E. P. Demetri

Northern Research and Engineering Corporation, Cambridge, Mass.

J. Fluids Eng 97(3), 303-309 (Sep 01, 1975) (7 pages) doi:10.1115/1.3447307 History: Received June 23, 1975; Online October 12, 2010


The results of a research program involving the design and performance testing of two low-emission combustors for vehicular gas turbine applications are described. The novel features of the combustor designs tested include the use of airblast fuel nozzles, a relatively high value of pressure-loss factor to promote vigorous mixing, and variable geometry to control the liner air flow distributions. Particular emphasis is placed on describing the relative effects of primary-zone equivalence ratio, combustor inlet temperature and pressure, residence time, and the uniformity of the fuel/air distribution in the primary zone. Guidelines for the future design of low-emission combustors based on the observed effects are also presented. The major conclusion reached is that essentially conventional combustor configurations have the capability of achieving the specified emission goals.

Copyright © 1975 by ASME
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