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Selection of labyrinth seals in steam turbines

  • Steam-Turbine, Gas-Turbine, and Combined-Cycle Plants and Their Auxiliary Equipment
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Abstract

The efficiency, vibration stability, operational durability, and cost of the main types of peripheral seals used in steam turbines are considered. A comparison between the conventional and honeycomb seals is given. Conditions subject to which replacement of conventional seals by honeycomb ones can be justified are pointed out. The use of variable-pitch multicomb seals as the most promising ones is recommended.

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Correspondence to A. G. Kostyuk.

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Original Russian Text © A.G. Kostyuk, 2015, published in Teploenergetika.

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Kostyuk, A.G. Selection of labyrinth seals in steam turbines. Therm. Eng. 62, 14–18 (2015). https://doi.org/10.1134/S0040601515010061

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