Pressure Distribution Optimization in a Control Valve

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Abstract

Many industries including power-plants, refineries and so on are using high pressure control valves. Many of these valves have traditional geometries like butterfly valves. Unfortunately, because of the special design of these valves, cavitation causes very rapid corrosion. In the last decade, a next generation of control valves have been introduced which are designed to prevent cavitation. Because of the special fluid paths in the Labyrinth valves, the pressure drop is very graduated which prevents cavitation. In this article, the geometry of fluid path is optimized using Taguchi method. To this end, four parameters are considered including path's height, number of corners, corner radii and input area. For each parameter three levels are assumed and using a standard Taguchi array the optimum geometry is predicted. Then the pressure drop in optimum geometry is simulated using finite element method and the results validated the optimized geometry.

Keywords

References

1-      
[1] Cavitation in Control Valves, SAMSON AG V74 / Training, Weismüllerstraße 3, 60314 Frankfurt, http://www.samson.de.
[2] Mazur, Z. Urquiz, G. Sierra, F. Campos, R. (2002).  "Numerical analysis of erosion of the rotor labyrinth seal in a geothermal turbine", Geothermics, Vol. 31- pp. 563–577.
[3] Mazur, Z. Palacios, L.M. Urquiza, G. (2004). "Numerical modeling of gland seal erosion in a geothermal turbine", Geothermics Vol. 33, pp. 599–614.
[4] Mazur, Z. Amezcua, R.C. Beltran, G.U. Gutierrez, A. G. (2004). "Numerical 3D simulation of the erosion due to solid particle impact in the main stop valve of a steam turbine", Applied Thermal Engineering, Vol. 24, pp. 1877–1891.
[5] Yang, B.S. Hwang, W.W. Ko, M.H. Lee, S.J. (2005). "Cavitation detection of butterfly valve using support vector machines", Journal of Sound and Vibration Vol. 287, pp. 25–43.
[6] Asok, S.P. Sankaranarayanasamy, K. Sundararajan, T. Vaidyanathan, G. Udhaya Kumar K., (2011). "Pressure drop and cavitation investigations on static helical-grooved square triangular and curved cavity liquid labyrinth seals", Nuclear Engineering and Design Vol. 241, pp. 843–853.
[7] CONTROL VALVE HANDBOOK, Fourth Edition, Emerson Process Management, Marshalltown, Iowa 50158 USA, www.EmersonProcess.com.
[8] Reyes, A., “Beginner’s Guide to SolidWorks 2013 - Level I: Parts, Assemblies, Drawings, Simulation Xpress”, Schroff Development Corporation Publication, 2013.
[9] ANSYS FLUENT 12.0, Theory Guide, Release 12.0 c ANSYS, Inc. January 29, 2009.
[10] Jeff Wu, C.F. Hamada M.S. (2002)."Experiments: Planning, Analysis, and Parameter Design Optimization". Wiley.
]11[ فروزان، محمدرضا، نیرومند، محمدرضا، "روشهای نوین بهینه سازی"، انتشارات جهاد دانشگاهی دانشگاه صنعتی اصفهان، 1390.
 
Journal of Modeling in Engineering
Volume 14, Issue 45
June 2016
Pages 93-98

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History

  • Receive Date: 28 January 2017
  • Revise Date: 16 September 2017
  • Accept Date: 28 January 2017

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