Development of a low Btu gas fuel cooled combustor for 3000/sup 0/F gas turbine operation

Conference · Sat Jan 01 04:00:00 EST 1983 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:5610555

Koblish, T R; Schaefer, R

The attraction of a coal gasification combined cycle system to utility operation lies in its higher efficiencies (pile-to-busbar) relative to competing power generating systems. In order to achieve these higher efficiencies the coal gasification combined cycle combustor/turbine section must provide reliable operation with low or medium Btu gaseous coal derived fuel at turbine inlet temperature levels above 2600/sup 0/F. Utilization of low Btu gas (LBG) fuel for attainment of temperature levels up to 3000/sup 0/F in a gas turbine combustor environment presents several unique design and development problems. Because of the extremely high stoichiometric ratios required to attain 3000/sup 0/F, the management of combustor cooling as well as internal air and low Btu gas fuel flow mixing patterns is considered critical for high combustion efficiency and stability. Equally important is the requirement for long term combustor durability. A unique combustor design concept has been developed to utilize the available heat sink capability of the LBG fuel to adequately cool the combustor walls for long service life. Under a U.S. Department of Energy contract, an LBG fuel cooled combustor was designed for operation with 150 Btu/SCF fuel for use in development of a turbine capable of operating at 3000/sup 0/F. This paper describes the background combustor technology and test program results with 150 Btu/SCF fuel regarding the combustion stability, efficiency, emissions and burner wall temperature levels for operation up to 3000/sup 0/F exit gas temperatures and 6 atmospheres.

• Research Organization: Curtiss-Wright Corp., Wood - Ridge, NJ
• DOE Contract Number: AC01-76ET10348
• OSTI ID: 5610555
• Report Number(s): CONF-830309-
• Conference Information: Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 83-GT-147
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104 -- Fossil-Fueled Power Plants-- Components
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
BURNERS
CHEMICAL REACTIONS
COAL GASIFICATION
COMBINED-CYCLE POWER PLANTS
COMBUSTION
COMBUSTION CONTROL
COMBUSTION INSTABILITY
COMBUSTORS
CONTROL
COOLING
DESIGN
EFFICIENCY
FLUIDS
FUEL GAS
FUEL-AIR RATIO
FUELS
GAS FUELS
GAS TURBINES
GASES
GASIFICATION
HEAT SINKS
INSTABILITY
LOW BTU GAS
MACHINERY
OXIDATION
POWER PLANTS
SERVICE LIFE
SINKS
TEMPERATURE CONTROL
TESTING
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY
VERY HIGH TEMPERATURE