Browse > Article
http://dx.doi.org/10.9725/kstle.2012.28.2.070

Effect of Coning Combinations on Working Performances of Wavy Mechanical Face Seal  

Kim, Dong-Wook (School of Mechanical, Aerospace and Systems Engineering, KAIST)
Jin, Sung-Sik (KSM Corporation)
Kim, Jun-Ho (KSM Corporation)
Kim, Kyung-Woong (School of Mechanical, Aerospace and Systems Engineering, KAIST)
Publication Information
Tribology and Lubricants / v.28, no.2, 2012 , pp. 70-80 More about this Journal
Abstract
Non-contact type mechanical face seals installed in mechanical systems prevent leakage of working fluid using thin working fluid film between stator and rotor. For that purpose, various kinds of surface profiles, grooves and conings have been applied on seal surfaces of stator and rotor to generate hydrodynamic and hydrostatic pressure. The thickness distribution of working fluid film is one of important factors which affect the working performances of mechanical face seal, and it is strongly affected by the surface height profiles of stator and rotor. Therefore, appropriate design of surface height profiles of stator and rotor is necessary to optimize the working performances and life of mechanical face seal. In this study, numerical analysis using finite volume method was conducted to estimate the working performances of wavy mechanical face seals which have 36 coning combinations. As results, minimum thickness of working fluid film, leakage volume of working fluid and friction torque in static equilibrium condition of mechanical face seal, and stiffness of working fluid film were obtained. The results show that the working performances of mechanical face seal were affected by the coning combinations which can change the thickness distribution of working fluid film and pressure distribution in sealing region of mechanical face seal.
Keywords
mechanical face seal; wavy surface profile; coning; minimum thickness of working fluid film; leakage volume of working fluid; friction torque; stiffness of working fluid film;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Salant, R. F. and Homiller, S. J., "Stiffness and Leakage in Spiral Groove Upstream Pumping Mechanical Seals," Tribology Transactions, Vol. 36, No. 1, pp. 55-60, 1993.   DOI
2 Zirkelback, N., "Parametric Study of Spiral Groove Gas Face Seals," Tribology Transactions, Vol. 43, No. 2, pp. 337-343, 2000.   DOI
3 Lee, A. S. and Kim, J. H., "A Lubrication Performance of Deep Straight Groove Mechanical Face Seal," Journal of KSTLE, Vol. 19, No. 6, pp. 311-320, 2003.   과학기술학회마을
4 Young, L. A. and Lebeck, A. O., "The Design and Testing of a Wavy-tilt-dam Mechanical Face Seal," Lubrication Engineering, Vol. 45, No. 5, pp. 322- 329, 2000.
5 Kim, D. W., Jin, S. S., Kim, J. H. and Kim, K. W., "Static Characteristic Analysis of Mechanical Face Seal Used for Boiler Feedwater Pump," Journal of KSTLE, Vol. 26, No. 4, pp. 230-239, 2010.   과학기술학회마을
6 Lebeck, A. O., "Principles and Design of Mechanical Face Seal," A Wiley-Interscience Publication, New York, 1991.
7 Miller, B. A. and Green, I., "Numerical Formulation for the Dynamic Analysis of Spiral-Grooved Gas Face Seals," Journal of Tribology, Vol. 123, No. 2, pp. 359-403, 2001.