Study on the Performance Impact of Serrated Labyrinth Ring Parameters
- DOI
- 10.2991/978-94-6463-650-5_3How to use a DOI?
- Keywords
- Serrated labyrinth ring; Pump-Turbines; Clearance flow; Flow Energy Dissipation; Hydropower equipment
- Abstract
Labyrinth ring, an integral component of pump-turbines, exert significant influence on the safe and stable operation of the unit. Presently, research into the operational mechanisms of labyrinth ring configurations is relatively limited. This study employs orthogonal numerical simulation to investigate the operational mechanisms of key parameters of simplified serrated labyrinth rings comprehensively. The findings reveal that the tooth height and the narrowest gap of serrated labyrinth rings are negatively and positively correlated, respectively, with the force exerted on the labyrinth ring. Additionally, a higher number of teeth enhances the pressure-reducing capacity per tooth. Concerning energy loss, smaller narrowest gaps, larger tooth heights, and a higher number of teeth contribute to greater energy loss within the gap. This research offers technical support for mitigating leakage and reducing the impact of force characteristics in pump-turbines under different operating conditions.
- Copyright
- © 2025 The Author(s)
- Open Access
- Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.
Cite this article
TY - CONF AU - Weilong Guang AU - Zhiyu Tao AU - Yaju Zuo AU - Wei Xiao AU - Di Zhu AU - Ran Tao AU - Ruofu Xiao PY - 2025 DA - 2025/01/31 TI - Study on the Performance Impact of Serrated Labyrinth Ring Parameters BT - Proceedings of the 2024 7th International Conference on Civil Architecture, Hydropower and Engineering Management (CAHEM 2024) PB - Atlantis Press SP - 17 EP - 26 SN - 2352-5401 UR - https://doi.org/10.2991/978-94-6463-650-5_3 DO - 10.2991/978-94-6463-650-5_3 ID - Guang2025 ER -