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Design Optimization of Centrifugal Pumps

원심 펌프의 최적 설계

  • 오형우 (한국과학기술원 기계공학과) ;
  • 정명균 (한국과학기술원 기계공학과) ;
  • 김상철 (현대중공업 엔진사업본부 유체기계설계부) ;
  • 양근영 (현대중공업 엔진사업본부 유체기계설계부) ;
  • 하진수 (현대중공업 엔진사업본부 유체기계설계부)
  • Received : 1998.08.06
  • Published : 1999.02.01

Abstract

An optimal design code for centrifugal pumps has been developed to determine geometric and fluid dynamic variables under appropriate design constraints. The optimization problem has been formulated with a nonlinear objective function to minimize one, two or all of the fluid dynamic losses, the net positive suction head required and the product price of a pump stage depending on the weighting factors selected as the design compromise. The optimal solution Is obtained by means of the Hooke and Jeeves direct search method. The performance analysis Is based on the mean streamline analysis using the present state-of-the-art loss correlations. The optimized efficiency and design variables of centrifugal pumps are presented in this paper as a function of non-dimensional specific speed in the range, $0.5{\leq}N$, ${\leq}1.3$. The diagrams presented herein can be used efficiently in the preliminary design phase of centrifugal pumps.

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