Reduction of Stress in Steam Turbine Rotor by using Different Alloy

In recent years' market requirements of power plants have been changed. As a result, efforts in the improvement of material and design for efficient power plants have been increased. The possible way to achieve high-efficiency requirements is by installing Ultra-supercritical steam power plants whose steam temperatures have T ≥ 601o C. The turbines need to operate at high-temperature conditions by withstanding SCC, LCF and Wire Wooling. As a result, materials with creep, corrosion, and oxidation resistance are required. Existing materials are less resistant towards high-temperature applications such as for ultra- supercritical power plants. This paper aims at designing a single, continuous, monolithic turbine rotor and analyze the steam turbine component, especially turbine rotor by using a different alloy with HAYNES® 188 which can replace the existing alloy 18CrNiMo 7-6. The design of rotor is carried out in Solidworks part design and the analysis of rotor with different alloys is carried out in Solidworks Simulation.