Effects Of Engine Nacelle Dimension On Steam Turbine Cooling Performance And Optimization Of Dimension To Improve Cooling Performance

Authors

  • Sajad Rastad , Seyed Amir Abbas Oloomi , Seyed Ali Agha Mirjalily, Abolfazl Zare-Shahabadi

Abstract

Considering the importance of increasing the performance of steam turbines and the effect of dimensional optimization on them, this paper aims to investigate the impacts of the nozzle's optimum axial distance to the engine nacelle and the engine nacelle length on the engine’s performance. In order to provide a close simulation of the actual condition, the results were obtained by solving the 2D steady-state compressible Reynolds-averaged Navier-Stokes (RANS) equations using the Finite Volume Method and the Shear Stress Transport (SST) turbulence model (FVM). The findings demonstrated that the mass flow rate of the coolant fluid rose by more than 50% as the nacelle length increased but was not considered when the nozzle-to-nacelle distance increased.

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How to Cite

Sajad Rastad , Seyed Amir Abbas Oloomi , Seyed Ali Agha Mirjalily, Abolfazl Zare-Shahabadi. 2025. “Effects Of Engine Nacelle Dimension On Steam Turbine Cooling Performance And Optimization Of Dimension To Improve Cooling Performance”. Metallurgical and Materials Engineering, August, 1-13. https://metall-mater-eng.com/index.php/home/article/view/1856.

Issue

Vol. 31 No. 7 (2025)

Section

Research

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Copyright (c) 2025 Sajad Rastad , Seyed Amir Abbas Oloomi , Seyed Ali Agha Mirjalily, Abolfazl Zare-Shahabadi

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