Mobile QR Code QR CODE : Korean Journal of Air-Conditioning and Refrigeration Engineering
Korean Journal of Air-Conditioning and Refrigeration Engineering

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleKorean J. Air-Cond. Refrig. Eng.
  • Open Access, Monthly
Open Access Monthly
  • ISSN : 1229-6422 (Print)
  • ISSN : 2465-7611 (Online)
Title Performance Analysis of an Orbiter Air Compressor
Authors 김현진 ; 조광명 ; 고원
Page pp.754-763
ISSN 12296422
Keywords Orbiter compressor ; 오비터 압축기 ; Performance analysis ; 성능해석 ; Efficiency ; 효율 ; Pressure ratio ; 압축비 ; Flow rate ; 유량
Abstract This paper introduces a new concept compressor in which piston orbits in the cylinder having an annular space formed between two concentric circular walls. In this configuration, two gas pockets are formed with 180° phase difference: one between the wrap of the orbiting piston and the inner cylinder wall and the other between the piston wrap and the outer cylinder wall. This alternating feature of gas compression and discharge processes yields several advantages such as low torque variation and low gas pulsation. Computer simulation program has been developed to evaluate the compressor performance. The volumetric, adiabatic, and mechanical efficiencies of the orbiter compressor are calculated to be 85.6 %, 97.2%, and 95.2%, respectively, when it is used as an air compressor.