航空学および航空宇宙工学ジャーナル
オープンアクセス

概要

Combined Method (1D + 3D) of the Axial Turbine’s Stage Aerodynamic Optimization

Boiko AV*,Usaty AP,Maksiuta DI

The paper presents the optimization method of turbine stages based on step-by-step application of onedimensional and three-dimensional optimization techniques of the main stage geometrical parameters. Using the developed method, the optimization of the 3rd stage of high pressure steam turbine K-540-23.5 was carried out. As a result of optimization a new stage with an absolute efficiency increase more than 1% compared to the original design was obtained. The reasons leading to such performance boost were analyzed and are represented in the paper.