David Orus Fitts
General Electric
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ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference | 2003
Geoff Myers; Dan Tegel; Markus Feigl; Fred Setzer; William Theodore Ii Bechtel; David Orus Fitts; Bernard Arthur Couture; Richard Tuthill
The lean, premixed DLN2.5H combustion system was designed to deliver low NOx emissions from 50% to 100% load in both the Frame 7H (60 Hz) and Frame 9H (50 Hz) heavy-duty industrial gas turbines. The H machines employ steam cooling in the gas turbine, a 23:1 pressure ratio, and are fired at 1440 C (2600 F) to deliver over-all thermal efficiency for the combined-cycle system near 60%. The DLN2.5H combustor is a modular can-type design, with 14 identical chambers used on the 9H machine, and 12 used on the smaller 7H. On a 9H combined-cycle power plant, both the gas turbine and steam turbine are fired using the 14-chamber DLN2.5H combustion system. An extensive full-scale, full-pressure rig test program developed the fuel-staged dry, low emissions combustion system over a period of more than five years. Rig testing required test stand inlet conditions of over 50 kg/s at 500 C and 28 bar, while firing at up to 1440 C, to simulate combustor operation at base load. The combustion test rig simulated gas path geometry from the discharge of the annular tri-passage diffuser through the can-type combustion liner and transition piece, to the inlet of the first stage turbine nozzle. The present paper describes the combustion system, and reports emissions performance and operability results over the gas turbine load and ambient temperature operating range, as measured during the rig test program.Copyright
ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition | 1990
David Orus Fitts; Richard A. Symonds; Edmond R. Western
This paper presents the results of emissions testing and combustion system dynamics testing of a “Quiet Combustor” equipped MS7001E gas turbine at the Midway Sunset Cogeneration Company in Fellows, California. Water injection is used to control NOx emissions to 25 ppmvd without selective catalytic reduction. Test results include NOx, CO, unburned hydrocarbons, VOC, and formaldehyde emissions levels, and combustor dynamic pressure levels. Combustion system hardware mechanical performance is described following the initial combustion system inspection.© 1990 ASME
Archive | 1992
David Orus Fitts
Archive | 1996
Warren James Mick; L. Berkley Davis; Michael Bruce Sciocchetti; David Orus Fitts
Archive | 2000
Daniel Mark Brown; David Orus Fitts; Stephen Hugh Black
Archive | 2002
William Theodore Ii Bechtel; David Orus Fitts; Guy Wayne Deleonardo
Archive | 1994
Lewis Berkley Davis; David Orus Fitts; Warren James Mick; Michael Bruce Sciocchetti; Mitchell Reuben Cohen
Archive | 2004
Robert James Bracken; Sterling Hathaway; David Orus Fitts; Ron W. Korzun; Laurence Scott Duclos; William Edward Adis; Mark William Kowalczyk; Bernard Arthur Couture
Archive | 2002
William Theodore Ii Bechtel; David Orus Fitts; Guy Wayne Deleonardo
Archive | 2002
William Theodore Ii Bechtel; David Orus Fitts; Guy Wayne Deleonardo