A method of performance estimation for axial-flow turbines based on losses prediction

Authors

1 M. Sc. Student, South Tehran Branch, Islamic Azad University, Tehran, Iran

2 .M. Sc. Student, Department of Mechanical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran

3 Assistant Professor, Department of Mechanical Engineering, Science & Research Branch, Islamic Azad University, Tehran, Iran

4 Assistant Professor, Ghadr Aerodynamic Research Center, Imam Hossein University, Tehran, Iran

5 Professor, Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran

Abstract

The main objective in this paper is creating a method for one-dimensional modeling of multi stage axial flow turbine. The calculation used in this technique is based on common thermodynamics and aerodynamics principles in a mean stream line analyses. In this approach, loss models have to be used to determine the entropy increase across each section in the turbine stage. Finally, the analysis and comparisons between the calculated results and experimental data are performed.

Keywords