FIELD: power industry.
SUBSTANCE: in the work method of the combined cycle gas turbine power plant it is proposed to carry out the reheating of partially spent in a low-pressure cylinder (LPC) of the condensing type steam turbine the water vapour by air heat, as a result of the compression process in the low-pressure stage of the gas turbine plant two-stage turbocharger.
EFFECT: invention allows to increase the reliability and efficiency of combined cycle gas turbine power plant by increasing the degree of dryness and the available heat drop of the water vapour, partially spent in the low-pressure cylinder of the condensing type steam turbine, and increase of the gas turbine plant efficiency by reducing the compression work in the gas turbine plant two-stage turbocharger.
1 dwg
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