Design And Analysis of Axial Flow Turbine Rotar Blades Made with Forged Alloys of Ss, H30 Steel and Titanium for Different Turbine Conditions

Abstract

The design of an axial flow gas turbine differs from that of a regular turbine. Material rotor blades must endure not only high temperatures, but also thrust generated in an axial direction. Therefore, the rotor blades must be specially designed to handle the thrust as well as the heat. They must be able to withstand the thrust as well as the high temperatures, and must also be able to withstand the vibrations of the turbine. Thermal degradation and tangential thrust degradation can both be found in axial turbines. The rotor blades must be able to withstand both the thermal and thrust forces, as well as the vibrations of the turbine. This means that they must be made from materials with high thermal and thrust resistance as well as high strength and stiffness. Additionally, the rotor blades must be able to withstand corrosion and wear and tear from the rotor shaft. It is necessary to analyze the degradation of turbine rotor blades for different materials in order to avoid this major problem. The current work focuses on high strength forged alloys made from Steel, H30 and titanium analyzed for degradation using Ansys software. Various temperatures and pressure conditions were examined in the present work for transient thermal analysis with CFD flow. Analysis of axial flow gas turbines is based on temperatures of 1000 and 1200⁰C, and pressures of 28 and 30 MPa.