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Record 18 of 2749
Simulation of fluidized bed combustors. I - Combustion efficiency and temperature profile. [for coal-fired gas turbines]
Author and Affiliation:
Horio, M.(West Virginia Univ., Morgantown, VA, United States)
Wen, C. Y.(West Virginia University, Morgantown, W. Va., United States)
Abstract: A 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.
Publication Date: Nov 01, 1976
Document ID:
19770038846
(Acquired Dec 01, 1995)
Accession Number: 77A21698
Subject Category: INORGANIC AND PHYSICAL CHEMISTRY
Document Type: Conference Paper
Publisher Information: United States
Meeting Information: Annual Meeting of the American Institute of Chemical Engineers; 69th; Nov. 28-Dec. 2, 1976; Chicago, IL
Meeting Sponsor: American Institute of Chemical Engineers
Contract/Grant/Task Num: NAS3-19725
Financial Sponsor: NASA; United States
Organization Source: West Virginia Univ.; Morgantown, VA, United States
Description: 58p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: COAL UTILIZATION; COMBUSTION CHAMBERS; COMBUSTION EFFICIENCY; FLUIDIZED BED PROCESSORS; GAS TURBINE ENGINES; TEMPERATURE PROFILES; ALGORITHMS; ELUTION; ENERGY TECHNOLOGY; HEAT TRANSFER COEFFICIENTS; MATHEMATICAL MODELS; PARTICLE SIZE DISTRIBUTION
Imprint And Other Notes: American Institute of Chemical Engineers, Annual Meeting, 69th, Chicago, Ill., Nov. 28-Dec. 2, 1976, Paper. 58 p.
Availability Source: Other Sources
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