Fundamental modeling of pulverized coal and coal-water slurry combustion in a gas turbine combustor

Conference · Fri Jan 01 00:00:00 EST 1988 · Preprints of Papers, American Chemical Society, Division of Fuel Chemistry; (USA)

OSTI ID:5286586

Chatwani, A; Turan, A; Hals, F ^[1]

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1. Avco Research Laboratory, Inc., Everett, MA (USA)

This work describes the essential features of a coal combustion model which is incorporated into a three-dimensional, steady-state, two-phase, turbulent, reactive flow code. The code is a modified and advanced version of INTERN code originally developed at Imperial College which has gone through many stages of development and validation. Swithenbank et al have reported spray combustion model results for an experimental can combustor. The code has since then been modified by and made public under a US Army program. A number of code modifications and improvements have been made at ARL. The earlier version of code was written for a small CDC machine which relied on frequent disk/memory transfer and overlay features to carry the computations resulting in loss of computational speed. These limitations have now been removed. For spray applications, the fuel droplet vaporization generates gaseous fuel of uniform composition; hence the earlier formulation relied upon the use of conserved scalar approximation to reduce the number of species equations to be solved. In applications related to coal fuel, coal pyrolysis leads to the formation of at least two different gaseous fuels and a solid fuel of different composition. The authors have therefore removed the conserved scalar formulation for the sake of generality and easy adaptability to complex fuel situations.

• OSTI ID: 5286586
• Report Number(s): CONF-8806317-; CODEN: ACFPA
• Journal Information: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry; (USA), Vol. 33:2; Conference: Mathematical simulation of coal conversion processes, Toronto (Canada), 5-10 Jun 1988; ISSN 0569-3772
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
COMBUSTION KINETICS
FUEL SLURRIES
GAS TURBINES
MATHEMATICAL MODELS
CARBON MONOXIDE
CHARS
COMBUSTORS
DIMENSIONS
DISTRIBUTION
DROPLETS
EVAPORATION
GASIFICATION
GEOMETRY
OXIDATION
PARTICLES
PULVERIZED FUELS
SPRAYS
STEADY-STATE CONDITIONS
TEMPERATURE DISTRIBUTION
THREE-DIMENSIONAL CALCULATIONS
TURBULENT FLOW
TWO-PHASE FLOW
WATER
CARBON COMPOUNDS
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DISPERSIONS
ENERGY SOURCES
FLUID FLOW
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
KINETICS
MACHINERY
MATERIALS
MATHEMATICS
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PYROLYSIS PRODUCTS
REACTION KINETICS
SLURRIES
SUSPENSIONS
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY
014000* - Coal
Lignite
& Peat- Combustion