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Coupled heat transfer characteristics in a spiral groove mechanical seal lubricated by magnetic fluid

Penggao Zhang (School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, Jiangsu, China and Nanjing Polytechnic Institute, Nanjing, Jiangsu, China)
Boqin Gu (School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, Jiangsu, China)
Jianfeng Zhou (School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, Jiangsu, China)
Long Wei (Nanjing Polytechnic Institute, Nanjing, Jiangsu, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 29 May 2019

Issue publication date: 22 August 2019

Abstract

Purpose

The purpose of this study is to investigate the heat transfer characteristics in a spiral groove mechanical seal lubricated by magnetic fluid.

Design/methodology/approach

The viscosity relationship of magnetic fluid in external electromagnetic field was deduced. The temperature distribution of sealing ring was calculated by the method of separation variables.

Findings

It has been found that the rotating ring absorbs most friction heat. The temperatures on the end faces of rotating ring and stationary ring decrease from inner radius to outer radius, the temperature of magnetic fluid film decreases from rotating ring to stationary ring and the highest temperature of the sealing system is at the junction of the inner radius and the end face of rotating ring.

Originality/value

Selecting the sealing rings with higher thermal conductivity and reducing the volume fraction of solid particles in magnetic fluid can reduce the temperature of sealing system effectively.

Keywords

Acknowledgements

This work is supported by National Natural Science Foundation of China (51775262), Natural Science Foundation of Jiangsu Province of China (BK20161546), Natural Science Foundation for Colleges and Universities in Jiangsu Province of China (16KJA470001, 17KJB530007), the project of Jiangsu provincial Six Talent Peaks (ZBZZ-014), and the 5th “333” High-Level Talents Cultivation Project of Jiangsu Province (BRA2017482).

Citation

Zhang, P., Gu, B., Zhou, J. and Wei, L. (2019), "Coupled heat transfer characteristics in a spiral groove mechanical seal lubricated by magnetic fluid", Industrial Lubrication and Tribology, Vol. 71 No. 6, pp. 758-765. https://doi.org/10.1108/ILT-06-2018-0225

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited