The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
권호 표지
DOI QR코드

DOI QR Code

Numerical Study on the Performance Characteristics of a Centrifugal Compressor for a R134a Turbo-Chiller

R134a 터보냉동기용 원심압축기의 성능특성에 관한 수치해석적 연구

  • 이경용 (한국기술교육대학교 대학원, 한국생산기술연구원) ;
  • 최영석 (한국생산기술연구원 청정설계기술팀) ;
  • 박운진 (한국기술교육대학교 기계공학부)
  • Published : 2004.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, the overall performance and the local flow field of the centrifugal compressor with the refrigerant HFC-l34a were numerically studied using CFX-TASCflow. The thermodynamic and transport properties of the refrigerant gas were modeled by REFPROP which is NIST refrigerant properties database. The impacts of a grid qualify, discretization scheme, turbulent model and interaction between a impeller and a cascade diffuser were analyzed comparatively. The results were compared with experimental data and 1-D design results using COMPAL and agreed well with others. The numerical method and data obtained in this study can be applied to the design and modification of centrifugal compressors with real gases

Keywords

References

  1. 이용덕, 정진희, 이현구, 윤필현, 김길영, 2000, 'R134a용 터보냉동기의 원심압축기 개발 Part1: 원심압축기 설계,' 유체기계저널, 제3권 제4호, pp.44-51
  2. AEA Technology, 2001, CFX-TASCflow User Documentation
  3. ConceptsNREC, COMPAL Manual v. 7.3
  4. 김길영, 이창중, 이현구, 2003, '터보냉동기용 압축기의 성능에 대한 설험적 연구 Part 1: 성능 측정시 고려할 인자들', 2003 대한설비공학회 하계학술 발표대회 논문집, pp.718-723
  5. Aungier, Ronald H., 2000, Centrifugal compressors : A Strategy for Aerodynamic Design and Analysis, ASME press. pp.18