Numerical Analysis of Performance of Linear Compressor for the Stilting Cryocooler

스터링 냉동기의 선헝압축기 운전특성에 관한 수치해석적 연구

  • 홍용주 (한국기계연구원 열유체공정기술연구부) ;
  • 박성제 (한국기계연구원 열유체공정기술연구부) ;
  • 김효봉 (한국기계연구원 열유체공정기술연구부) ;
  • 염한길 (한국기계연구원 열유체공정기술연구부) ;
  • 최영돈 (고려대학교 기계공학과)
  • Published : 2002.11.01

Abstract

The purpose of this study is to analyze the charging gas effect on the resonance and performance characteristics of the linear compressor for small scale FPFD Stirling refrigerator. To ensure high performance of FPFD type Stirling refrigerator, the operating frequency of the refrigerator should be around the natural frequency of compressor. The gas spring effect which is induced from Pressure change in cylinder due to motion of pistons has significant effect on the natural frequency of the compressor. The numerical results show the linear compressor has high natural frequency when the charging pressure of working fluid is high and the stroke of compressor, current, input power and efficiency of compressor were shown with different operating conditions.

Keywords

References

  1. Cryogenics v.34 Prediction of natural frequency of the NASA 80K cooler by Stirling refrigerator performance model S.W.K.Yuan(etc)
  2. Cryocoolers v.9 Investigation of Gas Effects on Cryocooler Resonance Characteristics M.K.Heun(etc)
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