상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제30권5호
  • /
  • Pages.481-489
  • /
  • 2016
  • /
  • 1225-7672(pISSN)
  • /
  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지
DOI QR코드

DOI QR Code

원심펌프 관로계에 대한 임펄스 응답법 적용 연구

Impulse response method for a centrifugal pump in pipeline systems

  • 허지성 (부산대학교 사회환경시스템공학부) ;
  • 김현준 (부산대학교 사회환경시스템공학부) ;
  • 송용석 (부산대학교 사회환경시스템공학부) ;
  • 김상현 (부산대학교 사회환경시스템공학부)
  • Hur, Jisung (Dept. Environmental Engineering, Pusan National University) ;
  • Kim, Hyunjoon (Dept. Environmental Engineering, Pusan National University) ;
  • Song, Yongsuk (Dept. Environmental Engineering, Pusan National University) ;
  • Kim, Sanghyun (Dept. Environmental Engineering, Pusan National University)
  • 투고 : 2016.06.23
  • 심사 : 2016.08.18
  • 발행 : 2016.10.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Method of characteristic(MOC) has been widely used as a transient analysis technique for pressurized pipeline systems. There are substantial studies using MOC for the water hammer triggered through instantaneous valve closures, pump stoppage and pump startup for pipelines systems equipped with a centrifugal pump. Considering restrictions of MOC associated with courant number condition for complicated pipeline systems, an impulse response method(IRM) was developed in the frequency domain. this study implements the impact of centrifugal pump using transfer function in frequency domain approach. Using pump performance curve and the affinity law, this study formulated transfer functions which relate complex pressure head at upstream of pump system to that of downstream location. Simulations of simple reservoir-pump-valve system using IRM with formulated transfer function were similar to those obtained through MOC.

키워드

참고문헌

  1. Abuiziah, I., Oulhaj, A., Sebari, K., Abassi Saber, A., Ouazar, D., Shakameh, N. (2013). Modeling and controlling flow transient in pipeline systems: Applied for reservoir and pump systems combined with simple surge tank, Revue Marocaine des Sciences Agronomiques et Veterinaires., 1, 12-18.
  2. Anderson, J. D. (1995). Computational fluid dynamics: the basics with applications. McGraw Hill, New York.
  3. Chaudhry, M. H. (2014). Applied Hydraulic Transients. 3rd ed., Van Nostrand Reinhold, New York.
  4. Covas, D., Ramos, H., Almeida, A. B. (2005). "Impulse response method for solving hydraulic transients in viscoelastic pipes", XXXI IAHR Congress(Vol. 1, pp. 676-686). Seoul, Korea, IAHR.
  5. Ghidaoui, M. S., Karney, B. W. (1994). Equivalent differential equations in fixed-grid characteristics method,Journal of Hydraulic Engineering.,120, 1159-1175. https://doi.org/10.1061/(ASCE)0733-9429(1994)120:10(1159)
  6. Ghidaoui, M. S., Zhao, M., McInnis, D. A., Axworthy, D. H. (2005). A Review of Water Hammer Theory and Practice, ASME Applied Mechanics Reviews., 58, 49-76. https://doi.org/10.1115/1.1828050
  7. Karney, B. W., & Ghidaoui, M. S. (1997). Flexible discretization algorithm for fixed-grid MOC in pipelines,Journal of Hydraulic Engineering., 123, 1004-1011. https://doi.org/10.1061/(ASCE)0733-9429(1997)123:11(1004)
  8. Kim, S. H. (2005). Extensive development of leak detection algorithm by impulse response method, Journal of Hydraulic Engineering., 131, 2001-2007.
  9. Kim, S. H. (2007). Impedance matrix method for transient analysis of complicated pipe networks, Journal of Hydraulic Research., 45, 818-828. https://doi.org/10.1080/00221686.2007.9521819
  10. Kim, S. H. (2008). Impulse response method for pipeline systems equipped with water hammer protection devices, Journal of Hydraulic Engineering., 143, 961-969.
  11. Kim, S. H. (2010).Design of surge tank for water supply systems using the impulse response method with the GA algorithm, Journal of Mechanical Science and Technology., 24, 629-636. https://doi.org/10.1007/s12206-010-0108-y
  12. Kim, S. H. (2016). Impedance Method for Abnormality Detection of a Branched Pipeline System, Water Resources Management.,30, 1101-1115. https://doi.org/10.1007/s11269-015-1213-6
  13. Munson, B. R., Young, D. F., Okiishi, T. H. (2006). Fundamentals of Fluid Mechanics. John Wiley and Sons (Asia) Pte Ltd.
  14. Oppenheim, A. V. (1999). Discrete-time signal processing, 3rd ed., Prentice Hall, Englewood Cliffs, N.J.
  15. Shimada, M., Brown, J., & Vardy, A. (2007). Estimating friction errors in MOC analyses of unsteady pipe flows,Computers & fluids., 36, 1235-1246. https://doi.org/10.1016/j.compfluid.2006.11.005
  16. Suo, L., Wylie, E. B. (1989). Impulse response method for frequency-dependent pipeline transients, Journal of Fluids Engineering.,111 ,478-483. https://doi.org/10.1115/1.3243671
  17. Tijsseling, A. S., Bergant, A. (2007). Meshless computation of water hammer. Department of mathematics and computer science, University of technology.
  18. Wylie, E. B., Streeter ,V. L. (1993). Fluid transient in systems. Prentice-Hall, Englewood Cliffs, N. J.