Browse > Article
http://dx.doi.org/10.5293/KFMA.2011.14.4.031

Study of Butterfly Valve Loss Coefficient Equation  

Park, Jong-Ho (충남대학교 기계공학과)
Park, Han-Yung (한국수자원공사 수도기술처)
Publication Information
The KSFM Journal of Fluid Machinery / v.14, no.4, 2011 , pp. 31-37 More about this Journal
Abstract
Linear curve or hyperbolic curve interpolation equations have been used to represent loss coefficient of butterfly valve according to a certain opening(for example, each 10 degree up to 90 degree) so far, and these equations are not precise and inconvenient to use with computer programming. Method of representing loss coefficient of butterfly valve using experiment data with several equations is presented and It is verified that log equation is most precise and convenient to use with computer programming in this research.
Keywords
Butterfly Valve; Loss Coefficient; Inherent Flow-Coefficient; Effective Flow-Coefficient; Waterhammer;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Bruce E. Larock, Roland W. Jeppson and Gary Z. Watters, 2000, "Hydraulics of Pipeline Systems," CRC, Boca Raton London New York Washington, D.C. pp. 380-385.
2 박한영, 박진훈, 노선민, 신동기, 2008, "전산기로 푸는 수충격해석 입문," 홍릉과학출판사, 서울특별시, pp. 188∼194.
3 운준용, 2009, "관로용 밸브 설계기준 수립용역보고서," pp. 93-98.
4 한국상하수도협회, 2010, "상수도시설기준," 도설출판 건설도서, 서울특별시, p. 893.
5 이원우, 2009, "시계열 자료분석 예측을 위한 통계적 기법," 자유아카데미, 경기도 파주시, pp. 9-10.
6 Philip L. Skousen., 2004, "Valve Handbook," McGraw-Hill, New York., pp. 280-282.