Labyrinth Seal Design Optimization Based on Quadratic Regression Orthogonal Experiment

HTML  XML Download Download as PDF (Size: 1647KB)  PP. 204-215  
DOI: 10.4236/epe.2017.94B025    2,976 Downloads   4,450 Views  Citations

ABSTRACT

The influence of labyrinth seal structure parameters and their interaction on the characteristics of leakage amount are numerically investigated by conducting a quadratic regression orthogonal experiment. To determine the optimal structure parameters of the steam seal for minimizing the leakage amount, a reliable regression equation that does not lack of fit is established. The flow characteristics of the fluid in the labyrinth seal are analyzed in detail. Results show that the leakage amount is greatly influenced by seal cavity depth, convex platform height, seal tooth thickness, and tooth tip clearance, with the tip clearance having the most significant effect. The interaction among the four items exerts a certain impact on the leakage amount. The proposed regression equation exhibits a good significance and does not lack of fit. After optimization, the labyrinth seal demonstrates increased entropy and energy dissipation at the tip of the seal tooth, as well as decreased speed and inertia effect in the cavity, suggesting that the resistance leakage performance of the optimized labyrinth seal is improved.

Share and Cite:

Cao, L. , Si, H. , Li, P. and Li, Y. (2017) Labyrinth Seal Design Optimization Based on Quadratic Regression Orthogonal Experiment. Energy and Power Engineering, 9, 204-215. doi: 10.4236/epe.2017.94B025.
Journals Menu
Follow SCIRP
Contact us
+1 323-425-8868
customer@scirp.org
WhatsApp +86 18163351462(WhatsApp)
Click here to send a message to me 1655362766
Paper Publishing WeChat

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.