Influence of Kinematic Parameters of Carbon Dioxide Turbine on Its Coefficient of Efficiency and Dimensions

To reduce carbon dioxide emissions into the environment, energy sector develops oxygen-fuel cycles. One of most promising cycles is Allam cycle that features highest efficiency electricity generation among all others. main elements an oxy-fuel a high-temperature turbine. The turbine’s working fluid and coolant consist predominantly at supercritical pressure. Currently, there are no recommendations in literature for design turbines system (OFES) operating according to cycle; therefore, need study influence parameters flow path on its overall performance. In this paper, we have presented results one-dimensional calculations turbine with capacity 300 MW, initial temperature pressure 1100 °C 30 MPa, outlet 3 MPa. was carried out by varying rotor speed, reactivity level average diameter. Based calculations, found achieved speed 471 rad/s, 0.5, diameter 1.1 m first stage.