Specification considerations for a circulating fluidized bed boiler

Conference · Fri Jan 01 04:00:00 EST 1988 · Proceedings of the American Power Conference; (USA)

OSTI ID:6914190

Liu, E H; Surabian, M ^[1]

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1. Bechtel Power Corp., Gaithersburg, MD (USA)

The circulating fluidized bed (CFB) boiler is gradually gaining acceptance in both the industrial and utility sectors for electric power generation. Boiler steaming capacity in CFBs has increased to over a million pounds per hour in the most recent units. Many CFB units commisioned during the last few years worldwide have had difficult and extended start-up periods, but this experience has provided a good base of feedback for future units. There has been widespread use of the same criteria for a conventional pulverized coal or stoker boiler to specify the CFB boiler. This paper examines the unique design aspects of a CFB boiler and provides suggestions in the areas where specific requirements should be included in the specification of the boiler and its related systems. Areas examined include fuel handling area, burner systems, the combustor, cyclone and solids recirculation equipment, convention pass, the design and installation of refractories, fans and blowers, bed ash removal system, and particulate control equipment.

• OSTI ID: 6914190
• Report Number(s): CONF-880403--
• Conference Information: Journal Name: Proceedings of the American Power Conference; (USA) Journal Volume: 50
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000 -- Coal
Lignite
& Peat-- Combustion
20 FOSSIL-FUELED POWER PLANTS
200103* -- Fossil-Fueled Power Plants-- Waste-Fueled Systems
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
AEROSOL WASTES
AIR POLLUTION CONTROL
ASHES
BOILERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
CONTROL
DESIGN
ELECTRIC UTILITIES
ENERGY SOURCES
FLUIDIZED BED BOILERS
FLUIDIZED-BED COMBUSTION
FLY ASH
FOSSIL FUELS
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FUELS
MATERIALS
OXIDATION
PARTICLES
PARTICULATES
POLLUTION CONTROL
PUBLIC UTILITIES
PULVERIZED FUELS
REFRACTORIES
REMOVAL
RESIDUES
STOKERS
THERMOCHEMICAL PROCESSES
WASTES