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अमूर्त

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.