Lubrication Science - 2022 - Fatourehchi - Tribology of duststop seals of mixing machines.pdf (2.11 MB)
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Tribology of dust-stop seals of mixing machines

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journal contribution
posted on 18.11.2022, 11:36 authored by Ehsan Fatourehchi, Hamed Shahmohamadi, Ramin RahmaniRamin Rahmani, Homer Rahnejat, Mark Johnson, Ian Wilson

Dust stop seals are widely used in powder and rubber mixing industries. Design of the sealing system requires a continuous supply of pressurised lubricant, which is not recycled because of the risk of contamination. There is also the potential of large volume leakage of oil due to poor sealing, increasing operational costs and necessitating remedial measures to avoid environmental protection. Furthermore, the seal faces are prone to failure in relatively short periods of time due to reduced gap and lubricant leakage. The paper presents an analytical method and numerical predictions based on Reynolds equation under combined hydrodynamic and hydrostatic conditions with the entrant lubricant through hydraulically loaded feedholes. The validity of these methods is ascertained through comparison with a more complex but time-consuming solution of Navier-Stokes equations. The numerical predictions allow for determining the prevailing tribological contact conditions and assessing its suitability for evaluating the sealing performance of mixing machinery.

Funding

Innovate UK

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Lubrication Science

Publisher

John Wiley & Sons Ltd.

Version

VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Acceptance date

30/10/2022

Publication date

2022-11-17

Copyright date

2022

ISSN

0954-0075

eISSN

1557-6833

Language

en

Depositor

Dr Ramin Rahmani. Deposit date: 31 October 2022