Development of topping combustor for advanced concept pressurized fluidized-bed combustion

Technical Report · Sat Oct 01 04:00:00 EDT 1994

DOI:https://doi.org/10.2172/10185681· OSTI ID:10185681

Domeracki, W F; Dowdy, T E; Bachovchin, D

The objective of this program is to develop a topping combustor to operate in a Second-Generation Pressurized Fluidized Bed (PFBC) Combined Cycle power generation system. The combustor must be able to: lightoff with a high heating value fuel and compressor discharge air to heat the fluidized bed(s) and provide power for PFBC and carbonizer off-line; operate with 1,600 F oxygen depleted air from the PFBC and high heating value fuel to handle carbonizer off-line conditions; ramp up to 100% carbonizer syngas firing (normal operation) by firing a blend of decreasing high heating value fuel and increasing low heating value syngas; utilize the vitiated air, at temperatures up to 1,600 F for as much cooling of the metal combustor as possible, thus minimizing the compressor bypass air needed for combustor cooling; provide an acceptance exit temperature pattern at the desired burner outlet temperature (BOT); minimize the conversion of fuel bound nitrogen (FBN) present in the syngas to NO{sub x}; and have acceptably high combustion efficiency, and low emissions of carbon monoxide, UHC, etc. This paper reports the results of tests of a 14 inch diameter topping combustor with a modified fuel-rich zone conducted in June 1993, design of an 18 inch diameter topping combustor to be tested in June 1994 and afterwards, and results of a 50% scale cold flow model which has been built and tested.

• Research Organization: Westinghouse Electric Corp., Orlando, FL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC21-86MC21023
• OSTI ID: 10185681
• Report Number(s): DOE/MC/21023--94/C0362; CONF-9406131--15; ON: DE95000574; BR: AA1510050/AA3510100
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000
20 FOSSIL-FUELED POWER PLANTS
200102
AIR POLLUTION ABATEMENT
AMMONIA
CALORIFIC VALUE
CHEMICAL COMPOSITION
COCOMBUSTION
COMBINED-CYCLE POWER PLANTS
COMBUSTION
COMBUSTION CHAMBERS
DESIGN
EXHAUST GASES
EXPERIMENTAL DATA
FLUIDIZED-BED COMBUSTORS
NITROGEN OXIDES
PERFORMANCE TESTING
POWER CYCLES
PRESSURIZATION
SYNTHESIS GAS
TOPPING CYCLES