A compressor in the refrigerator uses about 80% of the total consumption power required for refrigerating cycle. In this study, we consider the auxiliary piston equipped with a valve that can be controlled to open and close in order to dramatically increase the efficiency of a linear compressor. Turbocharger using the auxiliary piston was to improve the cooling capacity and efficiency of the compressor. The numerical results show that the cooling capacity was considerably improved by approximately 40.6% compared to that of the baseline model. In addition, COP increased about 7.6% indicating that the turbocharger was very efficient

1. 서 론
 2. 수치해석 및 방법
 3. 결과 및 고찰
  3.1 사이클에 따른 흡입밸브 압력 변화
  3.2 사이클 지압선도
  3.3 흡입밸브 통과 질량유량
 4. 결 론
 후 기
 References

• 안일용(공주대학교 기계공학과 대학원) | Il Yong An
• 이영림(공주대학교 기계자동차공학부) | Young Lim Lee Corresponding Author