Solid fuel combustion system for gas turbine engine

Patent · Fri Jan 01 00:00:00 EST 1993

OSTI ID:868976

Wilkes, Colin ^[1]; Mongia, Hukam C ^[2]

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1. Lebanon, IN
2. Carmel, IN

A solid fuel, pressurized fluidized bed combustion system for a gas turbine engine includes a carbonizer outside of the engine for gasifying coal to a low Btu fuel gas in a first fraction of compressor discharge, a pressurized fluidized bed outside of the engine for combusting the char residue from the carbonizer in a second fraction of compressor discharge to produce low temperature vitiated air, and a fuel-rich, fuel-lean staged topping combustor inside the engine in a compressed air plenum thereof. Diversion of less than 100% of compressor discharge outside the engine minimizes the expense of fabricating and maintaining conduits for transferring high pressure and high temperature gas and incorporation of the topping combustor in the compressed air plenum of the engine minimizes the expense of modifying otherwise conventional gas turbine engines for solid fuel, pressurized fluidized bed combustion.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• DOE Contract Number: AC04-76
• Assignee: General Motors Corporation (Detroit, MI)
• Patent Number(s): US 5255506
• OSTI ID: 868976
• Country of Publication: United States
• Language: English

Related Subjects

solid
fuel
combustion
gas
turbine
engine
pressurized
fluidized
bed
carbonizer
outside
gasifying
coal
btu
fraction
compressor
discharge
combusting
char
residue
produce
temperature
vitiated
air
fuel-rich
fuel-lean
staged
topping
combustor
inside
compressed
plenum
diversion
100
minimizes
expense
fabricating
maintaining
conduits
transferring
pressure
incorporation
modifying
otherwise
conventional
engines
topping combustor
solid fuel
temperature gas
pressurized fluidized
bed combustion
compressed air
turbine engine
fuel gas
fluidized bed
gas turbine
pressurized fluid
turbine engines
fuel combustion
compressor discharge
conventional gas
gasifying coal
btu fuel
/60/