Abstract: Steam turbines, which convert thermal energy from steam into mechanical energy, work on the principle of thermodynamic expansion. High-pressure steam passes through multiple blade stages, causing the rotor to rotate and generate power. This project focuses on the modeling and thermal analysis of a steam turbine to assess its performance and efficiency. A detailed 3D model of the turbine is developed to simulate the thermodynamic expansion of high-pressure steam through multiple stages of blades, which causes the rotor to spin and generate mechanical power. The thermal analysis investigates heat distribution, temperature variations, and thermal stresses within the system under various operating conditions. By examining these factors, the study aims to optimize turbine design, enhance efficiency, and improve durability. The findings contribute to a deeper understanding of the thermal behavior of steam turbines, offering valuable insights for improving their performance and reliability in power generation, industrial applications, and marine propulsion.

Keywords: Thermal Analysis, Steam Turbine, 3D Modeling, ANSYS Simulation

| DOI: 10.17148/IARJSET.2025.12622