Su_et_al_STLE-TT.pdf (701.63 kB)
Performance evaluation of bidirectional dry gas seals with special groove geometry
journal contribution
posted on 2016-04-12, 12:26 authored by H. Su, Ramin RahmaniRamin Rahmani, Homer RahnejatThere are a very few studies of bidirectional gas seals particularly those with certain profiles used in the industry. Parametric study of performance of bidirectional dry gas seals under a set of operating conditions is presented. The expounded approaches uses solution of 3D Navier-Stokes momentum and continuity equations for various forms of grooved gas seals, particular for the trapezoidal shape variety for which there has been a particular dearth of in-depth analysis. It is shown that such groove geometries enhance the load carrying capacity of the seal through increased hydrodynamic lift. This is as the result of enhanced localised wedge flow particularly with a reduced seal gap. Therefore, there is the opportunity of gap minimisation, whilst reducing leakage rate and power loss. For given operating loading, kinematic and thermal conditions as well as seal geometry and topography, the operating minimum film thickness may be considered as the main design parameter.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Tribology TransactionsPages
? - ? (27)Citation
SU, H., RAHMANI, R. and RAHNEJAT, H., 2016. Performance evaluation of bidirectional dry gas seals with special groove geometry. Tribology Transactions, 60(1), pp. 58-69.Publisher
© Society of Tribologists and Lubrication Engineers. Published by Taylor & Francis.Version
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2016-01-20Publication date
2016-07-11Notes
This is an Accepted Manuscript of an article published by Taylor & Francis in Tribology Transactions on 4th April 2016, available online: http://dx.doi.org/10.1080/10402004.2016.1146380ISSN
1040-2004eISSN
1547-397XPublisher version
Language
- en