Experiments were conducted with a JT8D-engine sized can combustor modified such that all the combustion and dilution air entered through the burner front face from a single plenum through counter-rotating annular swirlers. Cold flow experiments were conducted to visualize and to develop a mixing and recirculation flow pattern within the combustor which contained annular and central recirculation cells and featured rapid mixing in the downstream section of the combustor. Laser velocimeter measurements, downstream of the air inlet configuration used in the combustion experiments, showed the largest velocity gradients in the radial direction were in the tangential velocity profile. Low-pressure combustion experiments were conducted with three flat spray fuel nozzle orientations and three air inlet geometries to determine the general air inlet and fuel injection characteristics required to produce acceptable combustion characteristics with the selected swirler configuration. The combustion experiments included emission, total pressure and total temperature measurements at the burner exit plane. Low emission levels and temperature pattern factors with relatively low burner pressure losses were demonstrated.
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April 1986
Research Papers
Cold Flow and Combustion Experiments With a New Burner Air Distribution Concept
B. V. Johnson,
B. V. Johnson
Heat Transfer Technology, United Technologies Research Center, E. Hartford, CT 06108
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S. J. Markowski,
S. J. Markowski
Combustion Fuels and Emissions, Pratt & Whitney Aircraft Group, E. Hartford, CT 06108
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H. M. Craig
H. M. Craig
Combustion Technology, Pratt & Whitney Aircraft Group, E. Hartford, CT 06108
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B. V. Johnson
Heat Transfer Technology, United Technologies Research Center, E. Hartford, CT 06108
S. J. Markowski
Combustion Fuels and Emissions, Pratt & Whitney Aircraft Group, E. Hartford, CT 06108
H. M. Craig
Combustion Technology, Pratt & Whitney Aircraft Group, E. Hartford, CT 06108
J. Eng. Gas Turbines Power. Apr 1986, 108(2): 370-375 (6 pages)
Published Online: April 1, 1986
Article history
Received:
December 18, 1984
Online:
October 15, 2009
Citation
Johnson, B. V., Markowski, S. J., and Craig, H. M. (April 1, 1986). "Cold Flow and Combustion Experiments With a New Burner Air Distribution Concept." ASME. J. Eng. Gas Turbines Power. April 1986; 108(2): 370–375. https://doi.org/10.1115/1.3239913
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