Abstract

There are several steam turbine problems in power generation to be solved. The problems caused a decline in performance. The main problems are rotor vibration, bearing problems, leakage, corrosion, and erosion. The erosion of the steam turbine blade can be caused by several parameters, such as case material, solid particle mass flow rate, particle diameter, pressure, impact angle, and boiler output steam content. The research was conducted to investigate the steam turbine blade's erosion rate by modifying the material's type. This research was steered by designing the 2D geometry of the blade turbine and presenting a numerical simulation of Solid Particle Erosion (SPE) using Computational Fluid Dynamics (CFD) software with the Discrete Phase Model (DPM). The analysis consists of pressure and velocity contours of the flow around the steam turbine blade. It discusses the effect of the material’s type on the erosion rate that occurs on the blade's surface. Variations of employed materials are Aluminum (Al), Steel alloy (Cr-MoV), and Titanium alloy (Ti6Al4V). The results show that the maximum erosion rate values are 3.59913 kg/m2s, 0.68009 kg/m2s, and 0.31709 kg/m2s. It was found that the maximum value of erosion rate occurs on the pressure side around the trailing edge. Compared to the three, the lowest value of erosion rate occurs in the Titanium alloy material. Hence, the Ti6Al4V is more recommended than Al and Cr-MoV.

Original languageEnglish
Pages (from-to)553-560
Number of pages8
JournalInternational Review of Civil Engineering
Volume14
Issue number6
DOIs
Publication statusPublished - 2023

Keywords

  • Blade Material
  • Computational Fluid Dynamics
  • Erosion
  • Steam Turbine

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