E3S Web Conf.
Volume 323, 2021V International Scientific and Technical Conference Modern Power Systems and Units (MPSU 2021)
|Number of page(s)||5|
|Published online||10 November 2021|
Method for the reduction of leakage in labyrinth seals by adapting the seal geometry to match the flow conditions
Institute of Thermal Engineering, Poznan University of Technology, 60-965 Poznan, Poland
* Corresponding author: firstname.lastname@example.org
In this paper a method for reducing leakage in labyrinth seals is presented. This method is based on CFD calculations and consists in the analysis of the phenomenon of gas kinetic energy carry-over in chambers of the seal between gaps. It belongs to the group of geometrical inverse problems and is designed for seals of given outside dimensions. For straight through labyrinth seals it enables determining the number of teeth and their optimal arrangement. This method was developed based on numerical and experimental tests. Examples of numerical calculations presented in this paper prove that this method is effective for straight through seals. We obtained the reduction of leakage ranging from 8.7 to 9.4% relative to the initial geometry with no change in the outside dimensions of the seal.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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