유체기계공업학회:학술대회논문집

Korean Society for Fluid machinery (한국유체기계학회)
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Design and Operation Characteristics of A Two-Stage Compressor

이단 압축기의 동력학적 설계 및 운전 특성에 관한 연구

  • 이용복 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 이남수 (한양대학교 기계설계공학과) ;
  • 김태호 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 김창호 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 최동훈 (한양대학교 기계설계공학과)
  • Published : 2001.11.01
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Abstract

The feasibility of a oil-free motor-driven two-stage centrifugal compressor supported by air bump bearings is investigated. This centrifugal compressor is driven by 75kW motor at an operating speed of 39,000RPM md a pressure ratio of the compressor is up to 4. The analysis is performed, based upon bearing equilibrium position, bearing stiffness, Campbell diagram, unbalance response and stability. It is demonstrated in this paper that air bump bearings can be adopted well to a oil-free motor-driven centrifugal compressor.

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