Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지

CHARACTERISTIC OF BUTTERFLY VALVE FLOW WITH DIFFERENT DESIGN FACTORS

설계인자 변경에 따른 버터플라이 밸브 유동 특성에 관한 연구

  • 이종욱 (창원대학교 대학원 기계설계공학과) ;
  • 최훈기 (창원대학교 기계설계공학과) ;
  • 유근종 (창원대학교 기계설계공학과)
  • Received : 2010.01.14
  • Accepted : 2010.02.26
  • Published : 2010.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

Flow control butterfly valve(FCBV) is known to have difficulty in controlling flow rate along valve opening due to its high flow rate. In low opening condition, the butterfly valve also has some shortcomings such as noise, vibration and erosion which are mostly caused by cavitation effects. Therefore, the FCBV requires proper remedies to reduce cavitation effects and to improve flow control performance. Numerical analysis is applied to FCBV flow to find effects of design factors such as seat diameter and valve opening rate. Cases with 3 different sizes of seat diameter and various valve opening rate are selected for the numerical analysis. From the analysis results, it is found that the FCBV with small seat diameter shows better pressure loss performance and reduced cavitation effects.

Keywords

References

  1. 2007, 고기창, Contrlo Valve Handbook, 흥릉과학출판사.
  2. 2006, 오승환, 이영훈, 공형걸, 송학관, 강정호, 박영철, "Butterfly Valve 설계를 위한 Valve Type과 유량 계수의 관계에 대한 연구," 한국항해항만회, 제30권, 제2호, pp.373-377.
  3. 1996, Huang, C. amd Kim, R.H., "Three-Dimensional Analysis of Partially Open Butterfly Valve Flows," Journal of fluids engineering, Vol.118, No.3, pp.562-568. https://doi.org/10.1115/1.2817795
  4. 1995, Ogawa, K. and Kimura, T., "Hydrodynamic characteristics of a butterfly valve-Prediction of torque characteristics," ISA transations : a publication of instrument Society of America, Vol.34, No.4, pp.327-333.
  5. 2004, 윤준용, 이승준, 김은석, "공동 현상 방지를 위한 버터플라이 밸브의 유동장 해석," 유체기계저널, 제7권, 1 호 pp.9-16.
  6. 2007, Ogawa, K., "Cavition Noise Reduction Around a butterfly Valve by Semicircular fins," ASME Journal of Fluids Engineering, pp.397-402.
  7. 2008, 김상완 외3인, "LNG선용 버터플라이밸브의 유동특성에 관한 연구," 유체기계저널, 제11권, 제2호, pp.20-28.
  8. 2008, 김성동, 김범석, 최영도, 이영호, "극저온 버터플라이 밸브의 유속에 따른 캐비테이션 발생 예측," 한국마린엔지니어링학회지, 제32권, 제6호, pp.923-930.
  9. 1995, Kimura, T. and Tanaka, T., "Hydrodynamic characteristics of a butterfly valve-Prediction of pressure loss characteristics," ISA transations : a publication of instrument Society of America, Vol.34, No.4, pp.319-326.
  10. 2007, ANSYS Inc, CFX-Solver 11.0.
  11. 2007, 김상완, "LNG선용 극저온 버터플라이밸브의 유동 특성에 관한 연구," 한국해양대학교 대학원 박사학위논문.
  12. 1985, ANSI/ISA S75.01, Flow Equation for Sizing Control Valves, Instrument Society of America, Research Triangle Park, North Carolina.