Browse > Article
http://dx.doi.org/10.14775/ksmpe.2019.18.3.109

Experiment and Flow Analysis of the Flow Coefficient Cv of a 1 inch Ball Valve for a Thermal Power Plant  

Kang, Chang-Won (Gyeongnam National University of Science and Technology, Graduate School)
Yi, Chung-Seob (Korea Lift Collage, School of Lift Engineering)
Lee, Chi-Woo (Gyeongnam National University of Science and Technology, Automotive Engineering)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.18, no.3, 2019 , pp. 109-115 More about this Journal
Abstract
The purpose of this study was to analyze and test the flow rate of a 1-inch ball valve used in a thermal power plant. To identify the flow-rate characteristics, numerical analysis was conducted and an experimental apparatus of the valve flow rate coefficient was used to compare the flow coefficient Cv values. To determine the internal pressure distribution, the sites of opening ball valves and flow fields were investigated. In particular, a smaller the valve opening resulted in a more complicated the flow field of the ball. The valve flow characteristic test showed that the Cv value and flow rate increased with increasing valve-opening rate and the secondary function was performed. The pressure drop increased as the valve opening rate decreased. In addition, the experimental results for the flow analysis are similar to the numerical analysis results.
Keywords
Ball Valve; Flow Coefficient; CFD; Numerical Analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Jeong, H. S., Nam, J. W., "Experimental Analysis of the Static and Dynamic Characteristics for a Pilot Proportional Pressure Control Valve" Proceedings of KSPE Autumn Conference, Vol. 8, No. 4, pp. 9-16, 2011.
2 Lee, J. H. and Sung, J. K., "A Comparative Study on the Improvement of the Performance of Swivel Valve Tube Couplers," Journal of Korean Society of Manufacturing Process Engineers, Vol. 9, No. 5, pp. 20-27, 2010.
3 Kim, J. W., "Safety Estimation of High Pressure Drop Control Valve for Offshore Structures", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 20, No. 5, pp. 553-558, 2011.
4 Ahn, Y. J., Kim, B. J. and Shin, B. R., “Numerical Analysis on Flow Characteristics of High Pressure Drop Control Valve with Anti-Cavitation Trim,” Journal of Fluid Machinery, Vol. 10, No. 4, pp. 61-70, 2007.   DOI
5 Kwak, K. M., Cho, J. S., Kim, J. D. and Lee, J. H., "A Study on Flow Coefficient and Flow Characteristics for Butterfly Valve by Numerical Analysis," Journal of Korean Society of Manufacturing Process Engineers, Vol. 11, No. 4, pp. 62-65, 2012.
6 Park, S. W., Choi, I. S., Noh, K. C., Ryu, S. P. and Yoon, K. S., "An Experimental Study on Measurement of Flow Coefficient Using the Steady-Flow Test Rig," Journal of the Korean Society of Marine Engineering, Vol. 36, No. 4, pp. 423-429, 2012.   DOI
7 Ahn, H. H., Yi, C. S., "Numerical Analysis of the Internal Flow of Small Quick Coupler at 3,000psi", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 15 No. 2, pp. 16-21, 2016   DOI
8 Ahn, H. H., Yi, C. S., "A Study on the Breakaway Coupling of Flip-Flap valve type Through Reverse Engineering", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 15 No. 4, pp. 16-22, 2016.   DOI