Designing a radial turbine for ORC system: effect of the organic fluid

Several ideas have recently been investigated in an attempt to enhance the design and performance of ORC radial turbines. However, there aren't many comprehensive studies that consider the ways in which different factors impact radial turbine performance. Thus, developing a 1-D algorithm that can forecast radial turbine dimensions under certain ORC system operating conditions is the goal and focus of the current effort. This entails utilizing MATLAB and the REFPROP program to calculate the parameters of organic fluids, such as R123 and R134a, to properly size and construct various turbine sections. Along with calculating the turbine's power and efficiency, the research also plans to calculate several static and total thermodynamic variables at each component's input and outflow. The 1-D code's output was successfully verified using data that had already been released. Later, the impact of the working fluid, namely R123 and R134a, was examined. The findings showed that the fluid type had a significant impact on the radial turbine's dimensions and performance; therefore, great care must be taken to develop ORC radial turbines that offer high efficiency for various organic working fluids.