Browse > Article
http://dx.doi.org/10.5293/kfma.2016.19.4.035

Prediction of the Flow Coefficient of a PFA Lined Ball Valve Using the CFD Simulation Method  

Jeon, Hong-Pil (Graduate School of Automotive Engineering, Gangneung-Wonju National University(National Forensic Service))
Lee, Won-Seob (School of Mechanical and Automotive Engineering, Gangneung-Wonju National University)
Kim, Chul-Soo (School of Mechanical and Automotive Engineering, Gangneung-Wonju National University)
Lee, Jong-Chul (School of Mechanical and Automotive Engineering, Gangneung-Wonju National University)
Publication Information
The KSFM Journal of Fluid Machinery / v.19, no.4, 2016 , pp. 35-38 More about this Journal
Abstract
A PFA lined ball valve, which is machined with fluorinated resin PFA to its inner part for improving corrosion resistance, non-stickness, heat-resistance, has been widely used in semiconductor/LCD manufacturing processes with the high purity chemicals as working fluid. Due to the safety concerns, the experiments for measuring the flow coefficient of a PFA lined ball valve should be conducted with water at room temperature according to IEC standards. However, it is required to know the real flow coefficient with the real working fluid, because the flow coefficient is critical to correctly design valves in piping system. In this study, we calculated the flow coefficient of a PFA lined ball valve 40A with hydrochloric acid ($40^{\circ}C$ 36% HCl) as the working fluid using a commercial CFD package, ANSYS CFX v15. The computational results had a good agreement with the measured data and showed a little difference between water and hydrochloric acid as the working fluid of a PFA lined ball valve.
Keywords
Ball valve; CFD; Flow Coefficient; PFA Lined Valve;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Hayes, W. C., 2012, "Fluoropolymer Lined Ball Valve Design Breakthrough," ACHEMA Congress, Germany, June, pp. 18-22.
2 An, T. W., Han, G. J., Han, D. S., and Lee, S. W., 2007, "A study on the characteristics of flow in the metal touch ball valve according to the opening degree," KSME 2007 annual sprinig conference, No. 5 pp. 593-596.
3 Chern, M. J., Wang, C. C., and Ma, C. H., 2007, "Performance test and flow visualization of ball valve," Experimental Thermal and Fluid Science, Vol. 31, No. 6, pp. 505-512.   DOI
4 Perry, R., Green, D., and Maloney, J., 2007, "Perry's chemical engineers handbook, 7th edition," McGraw-Hill Book Company, USA.
5 Aspen Technology, 2002, "Aspen properties calculations binary mixtures modeling software," Akzo Nobel Engineering, Netherlands.
6 IEC 60534-2-3, Industrial-Process Control Valves (Part 2-3: Flow capacity - Test Procedure), 1997, IEC.
7 ANSYS CFX-pre User's Guide, 2014, ANSYS, Inc.
8 ANSYS CFX-Solver Theory Guide, 2014, ANSYS, Inc.