Heat transfer in a two-bed fluidized combustor

Conference · Wed Mar 01 04:00:00 EST 1989

DOI:https://doi.org/10.31274/rtd-180813-12373· OSTI ID:6630168

Foley, J E ^[1]; Brown, R C; Buttermore, W ^[2]

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1. Iowa State Univ. of Science and Technology, Ames, IA (USA). Dept. of Mechanical Engineering
2. Ames Lab., IA (USA)

The objective of this study is to improve load turndown in a bubbling fluidized combustor by using a two-bed design. The combustor consists of a central bed, which supports combustion of coal, and a surrounding annular bed, which controls heat transfer from the central bed. Load turndowns up to 12.4 were achieved while burning three different fuel forms: crushed coal, coal-limestone briquettes, and coal-water-limestone mixture (CWLM). 5 figs., 2 tabs.

• Research Organization: Iowa State Univ. of Science and Technology, Ames, IA (USA). Engineering Research Inst.
• Sponsoring Organization: DOE/FE
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6630168
• Report Number(s): IS-M-647; ERI--89282; CONF-890819--29; ON: DE90018015
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
CARBONACEOUS MATERIALS
CARBONATE ROCKS
COAL
COMBUSTORS
DESIGN
DISPERSIONS
ENERGY SOURCES
ENERGY TRANSFER
FLUIDIZED-BED COMBUSTORS
FOSSIL FUELS
FUEL SLURRIES
FUELS
HEAT TRANSFER
LIMESTONE
MATERIALS
MIXTURES
ROCKS
SEDIMENTARY ROCKS
SLURRIES
SUSPENSIONS