Gas turbine plant for a working medium in the form of a carbon dioxide/water mixture

A gas turbine plant comprising:

• a circuit including a compressor, a combustion chamber, a turbine and at least one heat sink, the gas turbine plant being operated with (1) a working medium in the form of a carbon dioxide/water mixture, (2) a hydrocarbon reacting as fuel with oxygen in the combustion chamber, and (3) excess carbon dioxide and water being discharged from the circuit at a point downstream from the compressor;
• wherein the compressor and turbine each have a rotor and a casing with flow ducts for the working medium running therebetween, moving blades disposed on the rotor, and guide blade cascades disposed in the flow ducts;
• wherein the rotor and casing of at least one of the compressor and the turbine are configured and dimensioned for use with an alternate working medium in the form of air;
• and
• wherein expansion behavior of the carbon dioxide/water mixture in at least one of the compressor and turbine is accommodated by adjustment of at least one of the flow ducts, the moving blades, and the guide blade cascades.

A gas turbine plant comprising:

• a compressor;
• a combustion chamber;
• a multi-stage turbine arranged with individual stages having progressively reduced flow cross-sections;
• at least one heat sink;
• a working medium in the form of a carbon dioxide/water mixture;
• and
• a hydrocarbon reacting as fuel with oxygen in a combustion chamber;
• wherein excess carbon dioxide and water is discharged downstream from the compressor, and
• wherein a rotor and a casing of at least one of the compressor and the turbine are configured and dimensioned for use with an alternate working medium in the form of air.