Energy and Exergy Analysis of S-GRAZ Oxy-Fuel Cycle

CO2 is the main greenhouse gas due to the very high overall amount emitted by human activities, and about one third of the overall human CO2 emissions are produced by the power generation sector. Oxy-fuel cycles are a promising technology. From the other side because of the fuel consumption in the power generation sections, thermodynamic analysis has an important role. In this study we are going to analyze the cycle and all the units thermodynamically and propose some information about the energy and exergy efficiency of them. Energy and exergy efficiency are 53.25% and 46.45% respectively and as it was predictable the main part of exergy destruction occurs in the combustion chamber. Solving simultaneous equations has been done by the EES software.