Design study of the MONIKA-ORC-Turbine and comparison with experimental results

Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires, Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2023
"The main objective of the project is to develop, verify, and validate a MATLAB code which implements a mean-line analysis for the ORC-Turbine located in the MONIKA facility. The mean-line analysis method is a useful tool to design turbomachines. In this study it was used to simulate and analyze the performance and properties into the turbine, under different operating conditions by analyzing its properties in a mean radius for each one of the inside inlet and outlet cross sections of the stages. It was taken into consideration different loss correlations in order to achieve a better result.

For the implementation of the mean-line analysis, the geometry and design properties for the ORC-Turbine were used, along with the experimental data obtained from the MONIKA facility in previous works. These data were used for the verification and validation process, ensuring that it accurately represents the behavior of the turbine under different scenarios.

The MATLAB code was designed to implement the mean-line analysis method, which can simulate the performance of the ORC-Turbine under various operating conditions, such as different mass flow rates, inlet and outlet temperatures, and pressures.

The results of the mean-line analysis showed that the developed code can accurately predict the performance and the properties of the ORC-Turbine, within a reasonable level of accuracy. The code can also be used to evaluate the impact of different design modifications, such as changes in the inlet and outlet thermodynamic properties of the fluid, on the turbine's performance".