Tilt Angle Optimization of Steam Turbine Blade Model Based on Aluminium : The Multi-Simulation Perspective
Penulis/Author
Ariyana Dwiputra Nugraha (1); MUHAMAD KEVIN FAJRIN (2); Zeeshan Hamid Malik (3); Dr. Ir. Jayan Sentanuhady, S.T., M.Eng., IPU., ASEAN Eng. (4); Muhammad Kusni (5); Seno Darmanto (6); Benny Sutanto (7); Prof. Gesang Nugroho, ST., MT., Ph.D. (8); Ir. Muhammad Akhsin Muflikhun, S.T., MSME., Ph.D (9)
Tanggal/Date
2023
Kata Kunci/Keyword
Abstrak/Abstract
Turbine blades are radial aerofoils attached to the rim of a turbine rotor to generate tangential force that helps to harvest energy from high-pressure steam. The more energy extracted, the more efficient the turbine and the more power produced. The blade’s profile, tip and root are the crucial parts of a steam turbine blade. This research analyses the varying tilt angles
of a steam turbine blade composed of aluminium alloy using a NACA 4412 aerofoil. Three types of simulations have been implemented; static structural, steady state thermal and fluent analysis, to determine the optimal tilt angle. In static structural analysis the lowest total deformation of 0.33 mm, minimum stress of 33.16 MpA and least stain of 0.52 mm/min occurred
at a tilt angle of 35o of turbine blade. Whereas steady state thermal analysis records the total heat flux of 1.55E+08 (W/m!) at 35o . The fluent analysis determined the lift, drag, pressure average, and velocity of air at a twist angle of 35o to be 507.65 N, 170.16 N, 26.19 kPa, and 383.97 m/s, respectively. The results suggested that for optimum performance, an aluminium
alloy stream turbine blade should be tilted at a 35° angle. Aluminium Metal Matrix Composite have improved corrosion
resistance with introduction of second phase particles and light weight structure will be more energy efficient
