초록 ▼

The present invention provides an improvement in the art of combined steam turbine and gas turbine power plants of the type wherein the principal source of energy is a fluidized bed combustor fueled by coal. More specifically, the invention pertains to supplemental firing of the gas turbine cycle wi

The present invention provides an improvement in the art of combined steam turbine and gas turbine power plants of the type wherein the principal source of energy is a fluidized bed combustor fueled by coal. More specifically, the invention pertains to supplemental firing of the gas turbine cycle with a clean hydrocarbon fuel (CHF) at a high incremental efficiency to significantly increase overall plant efficiency.

대표청구항 ▼

An improved combined cycle steam turbine and gas turbine power plant of the type having a fluidized bed combustor for burning a carbonaceous fuel to provide heat energy for driving the turbines, the fluidized bed combustor including means for introduction and withdrawal of sulfur-sorbing particles t

An improved combined cycle steam turbine and gas turbine power plant of the type having a fluidized bed combustor for burning a carbonaceous fuel to provide heat energy for driving the turbines, the fluidized bed combustor including means for introduction and withdrawal of sulfur-sorbing particles to remove sulfur compounds formed during combustion, said improved power plant comprising: (a) a gas turbine portion including at least one elastic-fluid driven turbine section and a compressor section for supplying a pressurized air stream; (b) at least one heat exchanger means for transferring a portion of the heat energy provided by said fluidized bed combustor to said pressurized air stream; (c) means for combustion of a clean hydrocarbon fuel (CHF) to provide additional heat energy, said CHF combustion means having a first inlet for receiving the pressurized air stream from said heat exchanger means, a second inlet for receiving said CHF, and an outlet fluidly connected to said turbine section for passage of a pressurized stream of gaseous combustion products and air thereto as motive fluid therefor.