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Simulation of fluidized bed combustors. I - Combustion efficiency and temperature profileA chemical engineering analysis is made of fluidized-bed combustor (FBC) performance, with FBC models developed to aid estimation of combustion efficiency and axial temperature profiles. The FBC is intended for combustion of pulverized coal and a pressurized FBC version is intended for firing gas turbines by burning coal. Transport phenomena are analyzed at length: circulation, mixing models, drifting, bubble wake lift, heat transfer, division of the FB reactor into idealized mixing cells. Some disadvantages of a coal FBC are pointed out: erosion of immersed heat-transfer tubing, complex feed systems, carryover of unburned coal particles, high particulate emission in off-streams. The low-temperature bed (800-950 C) contains limestone, and flue-gas-entrained SO2 and NOx can be kept within acceptable limits.
Document ID
19770038846
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Horio, M.
(West Virginia Univ. Morgantown, VA, United States)
Wen, C. Y.
(West Virginia University Morgantown, W. Va., United States)
Date Acquired
August 9, 2013
Publication Date
November 1, 1976
Subject Category
Inorganic And Physical Chemistry
Meeting Information
Meeting: Annual Meeting of the American Institute of Chemical Engineers
Location: Chicago, IL
Start Date: November 28, 1976
End Date: December 2, 1976
Sponsors: American Institute of Chemical Engineers
Accession Number
77A21698
Funding Number(s)
CONTRACT_GRANT: NAS3-19725
Distribution Limits
Public
Copyright
Other

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