Proceedings of the 2024 7th International Conference on Civil Architecture, Hydropower and Engineering Management (CAHEM 2024)

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Study on the Performance Impact of Serrated Labyrinth Ring Parameters

Authors
Weilong Guang1, Zhiyu Tao1, Yaju Zuo2, Wei Xiao3, Di Zhu2, Ran Tao1, Ruofu Xiao1, *
1College of Water Resources and Civil Engineering, China Agricultural University, Beijing, 100083, China
2College of Engineering, China Agricultural University, Beijing, 100083, China
3State Grid XinYuan Co Ltd, Pumped Storage Technol & Econ Res Inst, Beijing, 100052, China
*Corresponding author. Email: xrf@cau.edu.cn
Corresponding Author
Ruofu Xiao
Available Online 31 January 2025.
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.

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Volume Title
Proceedings of the 2024 7th International Conference on Civil Architecture, Hydropower and Engineering Management (CAHEM 2024)
Series
Advances in Engineering Research
Publication Date
31 January 2025
ISBN
978-94-6463-650-5
ISSN
2352-5401
DOI
10.2991/978-94-6463-650-5_3How to use a DOI?
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

risenwbib
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  -