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http://dx.doi.org/10.5293/KFMA.2008.11.3.043

Determination of Eccentric Axis for Pump Control Valve Using the Characteristic Function  

Shin, Myung-Seob (한양대학교 대학원 기계공학과)
Yi, Sang-Il (한양대학교 대학원 기계공학과)
Park, Gyung-Jin (한양대학교 공학대학 기계정보경영공학부)
Yoon, Joon-Yong (한양대학교 공학대학 기계정보경영공학부)
Publication Information
The KSFM Journal of Fluid Machinery / v.11, no.3, 2008 , pp. 43-49 More about this Journal
Abstract
The pump control valve is a butterfly valve that has an eccentric rotating axis. It is not only used as a butterfly valve to control the flow rate or pressure, but also as a check valve to prevent backward flow. A new design method of eccentric rotating axis is proposed to design the valve. The height of the rotating axis is determined through flow field analysis. A general purpose of computational fluid dynamics software system, Fluent is used to simulate the fluid flow. Flow field analysis is performed for various heights of the rotating axis and different opening angles of the valve. A characteristic function is defined for estimating the flow characteristics based on the results of flow field analysis. The characteristic function is defined in order to determine the height of the rotating axis. An optimization problem with a characteristic function is formulated to determine the amount of eccentricity. The height of the Totaling axis of the valve is determined through solving the optimization problem.
Keywords
Pump control valve; Characteristic function; Eccentric axis; Pressure drop;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 한국수자원공사, 1995, "수도권 광역상수도 5단계사업 실시 설계 보고서"
2 Park, G. J., 2008, "Analytic Methods in Design Practice," Springer, Germany
3 Kim, R. H. and Huang, C., 1993, "Numerical Simulation Butterfly Valve Fluid Flow," Proceedings of the FLUENT User's Group meeting, pp. 296-313
4 FLUENT User's Guide, 2003, Fluent Inc
5 Vandoormaal, J. P. and Raithby, G. D., 1984, "Enhancements of the SIMPLE Method for Predicting Incompressible Fluid Flows," Numerical Heat Transfer, vol. 7, No.2 ,pp. 147-163   DOI   ScienceOn
6 Dvir, Y., 1997, "Flow Control Devices," Jordan Jed, U.S.A
7 Danbon, F. and Solliec, C., 2000, "Aerodynamic Torque of a Butterfly Valve-Influence of an Elbow on the Time-Mean and Instantaneous Aerodynamic Torque", ASME Journal of Fluids Eng., Vol. 122, pp. 337-344   DOI   ScienceOn
8 C.N. Anderson, Valves, in: R.L. Sanks (Ed.), 2006, "Pumping Station Design (3rd ed.)," Butter worth Heinemann, London
9 Eom, K., 1988, "Performance of Butterfly Valve as a Flow Controller," ASME Journal of Fluids Eng., Vol. 110, pp. 16-19   DOI
10 박영철, 최종섭, 강진, 2005, "특성함수를 이용한 Butterfly valve의 최적설계," 한국해양공학회지, 제19권, 제3호, pp. 59-65   과학기술학회마을
11 윤준용, 이승준, 김승석, 2004, "공동 현상 방지를 위한 버터플라이 밸브의 유동장 해석," 유체기계저널, vol. 7, No. 1, pp. 9-16
12 Kimura, T., Tanaka, T., Fujimoto, K. and Ogawa, K., 1995, "Hydrodynamic Characteristics of a Butterfly Valve-Prediction of Pressure Loss Characteristics," ISA Transactions, Vol. 34, pp. 319-326   DOI   ScienceOn
13 Skousen, P. L., 2004, "Valve Handbook (2nd ed.)," McGraw-Hill, U.S.A