Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Patent
1994-04-28
1996-09-17
Thorpe, Timothy S.
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
F02C 600
Patent
active
055557236
ABSTRACT:
A gas turbine power plant having a pressurized fluidized bed combustor and an external topping combustor. A cylindrical duct and a toroidal duct direct the flow of hot gas from the topping combustor and distribute it around the circumference of the turbine inlet. The walls of the duct are cooled by water or steam. The walls are formed by tubes, having cooling fluid passages formed therein, that extend between inlet and outlet manifolds. Elongated plate sections connect each tube to an adjacent tube so as to form a continuous gas barrier. If the walls are water cooled, the water that flows through the tubes for cooling is subsequently directed to a heat recovery steam generator, in which it is converted to steam for expansion in a steam turbine. If the walls are steam cooled, the steam is first generated in the heat recovery steam generator and then at least partially superheated by flowing through the walls.
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Cooke, et al., "The Production of Coal-derived Fuel Gas For Powering Gas-Turbines Using Fluidised Bed Techniques," 13th International Congress on Combustion Engines, Vienna (1979).
Garland et al. Westinghouse Electric Corporation, "Second Generation PFBC System Research & Development Phase 2 Topping Combustor Development," Status Report, Dec. 1992.
Domeracki et al. Westinghouse Electric Corporation, "Topping Combustor Development for Second Generation PFBC Power Plants", Status Report, Dec. 1992.
Robertson et al., "Second Generation Pressurized Fluidized Bed Combustion Plant Conceptual Design and Optimization of a Second-Generation PFB Combustion Plant", Phase I Task I Report --vol. 1, Sep. 1989.
Panian M. G.
Thorpe Timothy S.
Westinghouse Electric Corporation
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