N2 - The objective of the paper is to analyse thermodynamical and operational parameters of the supercritical power plant with reference conditions as well as following the introduction of the hybrid system incorporating ORC. In ORC the upper heat source is a stream of hot water from the system of heat recovery having temperature of 90 °C, which is additionally aided by heat from the bleeds of the steam turbine. Thermodynamical analysis of the supercritical plant with and without incorporation of ORC was accomplished using computational flow mechanics numerical codes. Investigated were six working fluids such as propane, isobutane, pentane, ethanol, R236ea and R245fa. In the course of calculations determined were primarily the increase of the unit power and efficiency for the reference case and that with the ORC. L1 - http://journals.pan.pl/Content/94463/PDF/04_paper.pdf L2 - http://journals.pan.pl/Content/94463 PY - 2013 IS - No 4 December EP - 71 DO - 10.2478/aoter-2013-0029 KW - Supercritical power plant KW - thermodynamic analysis KW - ORC KW - Regeneration KW - Numerical analysis KW - CFM A1 - Mikielewicz, Dariusz A1 - Mikielewicz, Jarosław A1 - Ziółkowski, Paweł 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 - Increase of power and efficiency of the 900 MW supercritical power plant through incorporation of the ORC SP - 51 UR - http://journals.pan.pl/dlibra/publication/edition/94463 T2 - Archives of Thermodynamics