Tightness testing of rotary ferromagnetic fluid seal working in water environment

Purpose – The purpose of this publication is to determine the influence of selected factors on the durability and the tightness of ferrofluid seals working in water environments. Ferromagnetic fluid (FF) seals are one of the most common applications of magnetic fluid. New applications can be develop...

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Bibliographic Details
Published in:Industrial lubrication and tribology 2015-08, Vol.67 (5), p.455-459
Main Authors: Szczech, Marcin, Horak, Wojciech
Format: Article
Language:English
Subjects:
Computational fluid dynamics
Design
Engineering
Experiments
Ferrofluids
Ferromagnetism
Fluid flow
Fluids
Magnetic fields
Magnetic fluids
Magnetic properties
Magnetic saturation
Mathematical analysis
Mechanical engineering
Permeability
Physical properties
Rotation
Seals
Surfactants
Test procedures
Tightness
Velocity
Viscosity
Water
Water pressure
Working conditions
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Summary:Purpose – The purpose of this publication is to determine the influence of selected factors on the durability and the tightness of ferrofluid seals working in water environments. Ferromagnetic fluid (FF) seals are one of the most common applications of magnetic fluid. New applications can be developed by extending the capabilities of these seals in fluid environments, especially in water. Design/methodology/approach – Tests were performed using ferrofluids with differing physical properties like density, dynamic viscosity and saturation magnetization. Working conditions, such as water pressure and peripheral speed, were taken into account. Findings – A mathematical description which allows the selection of an appropriate ferrofluid and the determination of the operating parameters of an FF seal was developed. Originality/value – This study concerns the influence of peripheral speed, water pressure and magnetic fluid properties on seal tightness.
ISSN:0036-8792
1758-5775
DOI:10.1108/ILT-02-2015-0014