TY - JOUR N2 - One of the problems in Russia Power Sector strategy until 2035 is the technologies development for mitigation of harmful emissions by the heat and power production industry. This goal may be reached by the transition to environmentally friendly generation units such as oxy-fuel combustion power cycles that burn organic fuels in pure oxygen. This paper provides the results of research on one of the most efficient oxy-fuel combustion power cycle, which was modified by the usage of nitrogen for turbine cooling. The computer simulation and parametric optimization approaches are described in detail. The net efficiency of the oxy-fuel combustion power cycle in relationship to the carbon dioxide turbine exhaust pressure is shown. Moreover, the influence of the regenerator scheme and modeling parameters on heat performance is obtained. Particularly, it was found that the transition to a scheme with five two-threaded heat exchangers decrease cycle efficiency by 4.2% compare to a scheme with a multi-stream regenerator. L1 - http://www.journals.pan.pl/Content/118781/PDF/art08.pdf L2 - http://www.journals.pan.pl/Content/118781 PY - 2020 IS - No 4 EP - 202 DO - 10.24425/ather.2020.135859 KW - carbon dioxide KW - thermodynamic analysis KW - parametric optimization KW - multistream regenerator KW - gas turbine A1 - Kindra, Vladimir A1 - Rogalev, Andrey A1 - Zlyvko, Olga Vladimirovna A1 - Zonov, Alexey A1 - Smirnov, Matvey A1 - Kaplanovich, Ilya PB - The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences and The Institute of Fluid-Flow Machinery Polish Academy of Sciences VL - vol. 41 DA - 2020.12.30 T1 - Research on oxy-fuel combustion power cycle using nitrogen for turbine cooling SP - 191 UR - http://www.journals.pan.pl/dlibra/publication/edition/118781 T2 - Archives of Thermodynamics ER -