University of Twente Student Theses


Toolchain Development for Gas Turbine Optimization

Zanon, Andrea (2019) Toolchain Development for Gas Turbine Optimization.

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Abstract:A modernized gas turbine can result in a more efficient solution for energy production, answering to an always increasing demand for more power at reduced fuel consumption. New turbine integrations are available or in development to reduce losses and to allow extraction of more work. In this report, the aerodynamic design of the turbine blades of one of the most used engines in service worldwide, the Siemens V94.2 gas turbine, is investigated to assess the feasibility of a more efficient machine. The purpose of this assignment is to analyse the third version of the engine. The turbine blades are not created from scratch, but the existing machine is reproduced through reverse engineering and the design analysed for possible improvements. Several upgrades are in development to optimize the turbine, including improvements on aerodynamics of the blades, materials used and cooling system. This study focuses on aerodynamics of the blades exclusively. The profile characteristic angles like inlet and outlet metal angles, stagger angle, gauging angle, Leading Edge (LE) and Trailing Edge (TE) wedge angles and the unguided turning angle are investigated. Steady state streamline calculations are performed to observe the performance response. Special interest of this research focuses on cooled turbine total-to-total efficiency, power output, turbine reaction and total values of temperature and pressure at inlet and outlet of the turbine. A toolchain is developed by modelling the turbine through several components of the AxSTREAM software package, and integrating the resulting performance map in GSP to have an overview of the entire gas turbine performance.
Item Type:Internship Report (Master)
Faculty:ET: Engineering Technology
Programme:Mechanical Engineering MSc (60439)
Keywords:Gas Turbine, Aerodynamic Optimization, Turbomachinery, Turbine model
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