Two-stage slagging combustor design for a coal-fueled industrial gas turbine

Journal Article · Wed Apr 01 00:00:00 EST 1992 · Journal of Engineering for Gas Turbines and Power; (United States)

DOI:https://doi.org/10.1115/1.2906599· OSTI ID:5255460

Cawell, L H; LeCren, R T; Tenbrook, C E ^[1]

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1. Solar Turbines Inc., San Diego, CA (US)

This paper reports on a full-size combustor for a coal-fueled industrial gas turbine engine which has been designed and fabricated. The design is based on extensive work completed through one-tenth scale combustion tests. Testing of the combustion hardware will be completed with a high pressure air supply in a combustion test facility before the components are integrated with the gas turbine engine. The combustor is a two-staged, rich-lean design. Fuel and air are introduced in the primary combustion zone where the combustion process is initiated. The primary zone operates in a slagging mode inertially removing coal ash from the gas stream. Four injectors designed for coal-water mixture (CWM) atomization are used to introduce the fuel and primary air. In the secondary combustion zone, additional air is injected to complete the combustion process at fuel lean conditions. The secondary zone also serves to reduce the gas temperatures exiting the combustor. Between the primary and secondary zones is a Particulate Rejection Impact Separator (PRIS). In this device much of the coal ash that passes from the primary zone is inertially separated from the gas combustor island. All of the combustor island components are refractory-lined to minimize heat loss. The design, test installation, and test plan of the full-size combustor island are discussed.

• OSTI ID: 5255460
• Journal Information: Journal of Engineering for Gas Turbines and Power; (United States), Vol. 114:2; ISSN 0742-4795
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COMBUSTORS
DESIGN
INSTALLATION
GAS TURBINES
AIR
ASHES
COAL
FABRICATION
HEAT LOSSES
INDUSTRY
MIXTURES
PARTICULATES
PRESSURE DEPENDENCE
REMOVAL
SEPARATION EQUIPMENT
SLAGGING PYROLYSIS PROCESS
TESTING
WATER
CARBONACEOUS MATERIALS
COMBUSTION PRODUCTS
DISPERSIONS
ENERGY LOSSES
ENERGY SOURCES
EQUIPMENT
FLUIDS
FOSSIL FUELS
FUELS
GASES
HYDROGEN COMPOUNDS
LOSSES
MACHINERY
MANAGEMENT
MATERIALS
OXYGEN COMPOUNDS
PARTICLES
PROCESSING
RESIDUES
TURBINES
TURBOMACHINERY
WASTE MANAGEMENT
WASTE PROCESSING
014000* - Coal
Lignite
& Peat- Combustion