Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Gas turbine topping combustor

Patent ·
OSTI ID:870984
 [1];  [2];  [3]
  1. Winchester, MA
  2. Orlando, FL
  3. Delmont, PA
+ Show Author Affiliations
A combustor for burning a mixture of fuel and air in a rich combustion zone, in which the fuel bound nitrogen in converted to molecular nitrogen. The fuel rich combustion is followed by lean combustion. The products of combustion from the lean combustion are rapidly quenched so as to convert the fuel bound nitrogen to molecular nitrogen without forming NOx. The combustor has an air radial swirler that directs the air radially inward while swirling it in the circumferential direction and a radial fuel swirler that directs the fuel radially outward while swirling it in the same circumferential direction, thereby promoting vigorous mixing of the fuel and air. The air inlet has a variable flow area that is responsive to variations in the heating value of the fuel, which may be a coal-derived fuel gas. A diverging passage in the combustor in front of a bluff body causes the fuel/air mixture to recirculate with the rich combustion zone.
Research Organization:
FOSTER WHEELER DEV CORP
DOE Contract Number:
AC21-86MC21023
Assignee:
Westinghouse Electric Corporation (Pittsburgh, PA)
Patent Number(s):
US 5636510
OSTI ID:
870984
Country of Publication:
United States
Language:
English

References (2)

Topping Combustor Development for Second-Generation Pressurized Fluidized Bed Combined Cycles
  • Domeracki, W. F.; Dowdy, T. E.; Bachovchin, D. M.
  • ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations https://doi.org/10.1115/94-GT-176
conference February 2015
Second-generation pressurized fluidized bed (PFB) combustion plant: Conceptual design and optimization of a second-generation PFB combustion plant, Phase 1, Task 1 report September 1989

Similar Records

Gas turbine topping combustor
Patent · Tue Jun 10 00:00:00 EDT 1997 · OSTI ID:489080
Low nox rich-lean combustor especially useful in gas turbines
Patent · Tue Jul 11 00:00:00 EDT 1989 · OSTI ID:5622672
Status of topping combustor development for second-generation fluidized bed combined cycles
Journal Article · Tue Dec 31 23:00:00 EST 1991 · Journal of Engineering for Gas Turbines and Power; (United States) · OSTI ID:5246248

Related Subjects

/60/
air
air inlet
air mixture
bluff
bound
burning
causes
circumferential
circumferential direction
coal-derived
combustion
combustion zone
combustor
convert
converted
derived fuel
direction
directs
diverging
flow
followed
forming
front
fuel
fuel gas
fuel rich
gas
gas turbine
heating
heating value
inlet
inward
lean
lean combustion
mixing
mixture
molecular
molecular nitrogen
nitrogen
nox
outward
passage
products
promoting
quenched
radial
radial fuel
radially
radially inward
radially outward
rapidly
rapidly quenched
recirculate
responsive
rich
rich combustion
swirler
swirling
topping
topping combustor
turbine
value
variable
variable flow
variations
vigorous
zone