STUDY ON DESIGN AND ANALYSIS OF STEAM TURBINE BLADE TO FIND ITS FREQUENCY AND DEFORMATIONS

MACHINE DESIGN

Steam turbines are becoming widely used for combined power generation and heat applications. The turbine blades are responsible for extracting energy from the high temperature steam produced by the combustor. Operating the steam turbine blade at high temperatures would provide better efficiency and maximum work output. These turbine blades are required to withstand large centrifugal forces, elevated temperatures and are operated in aggressive environments. To survive in this difficult environment, turbine blades often made from exotic materials. In this paper, four materials such as Niobium, Silicon carbide, titanium and aluminum have been considered for the purpose of frequency, modal analysis. The turbine blade is analyzed for its structural performance by mode condition. The stresses induced in the turbine blade made up of niobium and silicon carbide are well within the safe limits. Finally, it could be concluded that the niobium, silicon carbide which is being used in manufacturing of the turbine blade of turbine engine as the best suitable material. This project explains study, designing and analysis of turbine blade, Catia V5 R20 software is used to design the blade with the help of 2D and 3D commands and the analysis of blade is done in ANSYS 15.0 software by meshing the blade and applying the boundary conditions. Steam turbine blade design, cycle and operation of steam turbine was studied and reported.

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