Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1994-11-10
1997-08-19
Freay, Charles G.
Power plants
Combustion products used as motive fluid
Combustion products generator
60 39463, 60733, 60737, 2394164, 239549, F02C 320, F02G 300
Patent
active
056576323
ABSTRACT:
A combustor for a gas turbine having primary and secondary combustion zones. The combustor has a centrally disposed dual fuel nozzle that can supply a fuel rich mixture of either liquid or gaseous fuel to the primary combustion zone. The combustor also has primary gas fuel spray pegs for supplying a lean mixture of gaseous fuel to the primary combustion zone via a first annular pre-mixing passage and secondary dual fuel spray bars for supplying a lean mixture of either gaseous or liquid fuel to the secondary combustion zone via a second annular pre-mixing passage. The dual fuel spray bars are aerodynamically shaped and have passages for distributing gas and liquid fuel to a number of fuel discharge ports. The gas fuel discharge ports are formed in two rows on either side of the spray bar. The liquid fuel discharge ports are formed by a row of spray nozzles arranged along the downstream edge of the spray bar.
REFERENCES:
patent: 5351477 (1994-10-01), Joshi et al.
patent: 5359847 (1994-11-01), Pillsbury et al.
patent: 5408825 (1995-04-01), Foss et al.
Willis, et al., "Industrial RB211 Dry Low Emission Combustion", CT Engineers, 1993, 1-7 published by the Amer. Soc. Mechanical Engineers.
Willis, et al., "Low Emissions Combustors Design Options for An Aero Derived Industrial Gas Turbine", published by Canadian Gas Assoc., 1991, 1-25.
Freay Charles G.
Westinghouse Electric Corporation
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