Improved two-dimensional pulverized coal gasification/combustion code (PCGC-2). Volume 1. Theory and application. Final report

Technical Report · Sat Dec 01 04:00:00 EST 1984

OSTI ID:5985045

Hedman, P O

This report summarizes the research results obtained in a study of mixing and kinetic processes in pulverized coal combustors. The specific objectives were to: (1) complete experimental tests for a Wyoming subbituminous coal and a Utah bituminous coal in order to provide a data base for rigorous model verification and evaluation of variable effects; (2) critically evaluate, refine if necessary, and prepare the two-dimensional combustion code, PCGC-2, for industrial use; and (3) implement the code at at least two industrial sites, apply it to at least two appropriate industry coal combustion problems and assess its utility as a practical engineering/operational tool. Thirty-eight combustion experiments were completed. A significant effort was expended to improve the reliability and accuracy of the coal feed system, and the gas and particle sampling system. Tests were performed with both the Utah bituminous and Wyoming subbituminous coals to demonstrate the improved facility reliability. Mapping tests with the Wyoming subbituminous coal were also performed; mapping tests with the Utah bituminous coal were performed in a previous EPRI study. Tests were performed to obtain previously unavailable wall heat flux data and two-color optical pyrometric temperature measurements of the reacting particles. The two-dimensional, axisymmetric combustion model was completed, and carefully evaluated. Code predictions were compared to pulverized coal combustion data collected during this study, entrained coal gasification data obtained under the companion DOE-METC coal gasification study, as well as natural gas-air combustion data and cold-flow jet mixing data collected at the BYU Combustion Laboratory. Comparisons to data from other laboratories were made where such data were available. 51 references, 11 tables, 54 figures.

• Research Organization: Brigham Young Univ., Provo, UT (USA). Combustion Lab.
• OSTI ID: 5985045
• Report Number(s): EPRI-CS-3785-Vol.1; ON: TI85920078
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
014000* -- Coal
Lignite
& Peat-- Combustion
ANTHRACITE
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
COMBUSTION
COMBUSTION KINETICS
COMBUSTORS
COMPUTER CODES
ENERGY SOURCES
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
GASIFICATION
KINETICS
MATERIALS
MATHEMATICAL MODELS
MIXING
OXIDATION
P CODES
POWER PLANTS
REACTION KINETICS
SUBBITUMINOUS COAL
TESTING
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
TWO-DIMENSIONAL CALCULATIONS
VALIDATION