N2 - This paper presents a gas turbine combined cycle plant with oxy-combustion and carbon dioxide capture. A gas turbine part of the unit with the operating parameters is presented. The methodology and results of optimization by the means of a genetic algorithm for the steam parts in three variants of the plant are shown. The variants of the plant differ by the heat recovery steam generator (HRSG) construction: the singlepressure HRSG (1P), the double-pressure HRSG with reheating (2PR), and the triple-pressure HRSG with reheating (3PR). For obtained results in all variants an economic evaluation was performed. The break-even prices of electricity were determined and the sensitivity analysis to the most significant economic factors were performed. L1 - http://journals.pan.pl/Content/94491/PDF/14_paper.pdf L2 - http://journals.pan.pl/Content/94491 PY - 2013 IS - No 4 December EP - 233 DO - 10.2478/aoter-2013-0039 KW - Gas turbine combined cycle KW - Oxy-combustion A1 - Kotowicz, Janusz A1 - Job, Marcin PB - The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences and The Institute of Fluid-Flow Machinery Polish Academy of Sciences DA - 2013 T1 - Thermodynamic and economic analysis of a gas turbine combined cycle plant with oxy-combustion SP - 215 UR - http://journals.pan.pl/dlibra/publication/edition/94491 T2 - Archives of Thermodynamics