The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Optimal Design of Impeller Shroud for Centrifugal Compressor Using Response Surface Method

반응표면법을 이용한 원심압축기 임펠러 쉬라우드 형상최적설계

  • Kang, Hyun-Su (Graduate School of Mechanical Engineering, Sungkyunkwan University) ;
  • Hwang, In-Ju (Environment and Plant Research Division, Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Youn-Jea (School of Mechanical Engineering, Sungkyunkwan University)
  • 강현수 (성균관대학교 대학원 기계공학과) ;
  • 황인주 (한국건설기술연구원 환경.플랜트연구소) ;
  • 김윤제 (성균관대학교 기계공학부)
  • Received : 2014.10.31
  • Accepted : 2015.03.05
  • Published : 2015.08.01
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Abstract

In this study, a method for optimal design of impeller shroud for centrifugal compressor using response surface method (RSM) and multi-objective genetic algorithm (MOGA) was studied. Numerical simulation was conducted using ANSYS CFX with various configurations of shroud. Each of the design parameters was divided into 3 levels. Total 15 design points were planned by central composite design (CCD) method, which is one of the design of experiment (DOE) techniques. Response surfaces based on the results of DOE were used to find the optimal shape of impeller shroud for high aerodynamic performance. The whole process of optimization was conducted using ANSYS Design Xplorer (DX). Results showed that the isentropic efficiency, which is the main performance parameter of the centrifugal compressor, was increased 0.4% through the optimization.

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References

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