N2 - Among the technologies which allow to reduce greenhouse gas emission, mainly carbon dioxide, special attention deserves the idea of 'zero-emission' technology based on boilers working in oxy-combustion technology. In the paper the results of analyses of the influence of changing two quantities, namely oxygen share in oxidant produced in the air separation unit, and oxygen share in oxidant supplied to the furnace chamber on the selected characteristics of a steam boiler including the degree of exhaust gas recirculation, boiler efficiency and adiabatic flame temperature, was examined. Due to the possibility of the integration of boiler model with carbon dioxide capture, separation and storage installation, the subject of the analysis was also to determine composition of the flue gas at the outlet of a moisture condensation installation. Required calculations were made using a model of a supercritical circulating fluidized bed boiler working in oxy-combustion technology, which was built in a commercial software and in-house codes. L1 - http://journals.pan.pl/Content/94545/PDF/04_paper.pdf L2 - http://journals.pan.pl/Content/94545 PY - 2014 IS - No 2 June EP - 63 DO - 10.2478/aoter-2014-0013 KW - thermodynamic analysis KW - oxy-combustion KW - supercritical CFB boiler A1 - Balicki, Adrian A1 - Bartela, Ɓukasz 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 - 2014 T1 - Characteristics modeling for supercritical circulating fluidized bed boiler working in oxy-combustion technology SP - 51 UR - http://journals.pan.pl/dlibra/publication/edition/94545 T2 - Archives of Thermodynamics