Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
권호 표지

Performance Evaluation of Nano-Lubricants at Refrigeration Oil

나노입자를 적용한 냉장고 압축기용 오일의 윤활특성 평가

  • Lee, Kwang-Ho (Department of Mechanical Engineering, Pusan National University) ;
  • Hwang, Yu-Jin (Department of Mechanical Engineering, Pusan National University) ;
  • Kwon, Lae-Un (Department of Mechanical Engineering, Pusan National University) ;
  • Lee, Jae-Keun (Department of Mechanical Engineering, Pusan National University) ;
  • Kim, Seok-Ro (Digital Appliance Research Laboratory, LG Electronics Inc.) ;
  • Kim, Sun-Wook (Digital Appliance Research Laboratory, LG Electronics Inc.)
  • Published : 2008.06.25
Download PDF
⟨ Previous Next ⟩

Abstract

It has been recognized that friction coefficient decreased with decreasing viscosity of oil in lubrication. In general, the more viscosity decreases, the more wear rate increases due to decrease load carrying capacity. It has been proposed that nano particles in oil decrease friction coefficient and wear rate. The purpose of this study is to apply oil of lower viscosity that mix with nano particles at the compressor used in a refrigerator to decrease friction coefficient keeping Load carrying capacity. Mineral oil of 8 cSt were used and mixed with nano particle. Friction coefficient was evaluated by a disk-on-disk tester. As a result, friction coefficient of nano oil decreased by 90% in comparison with raw oil. These results lead us to the conclusion that nano oil is new plan to raise efficiency of the compressor.

Keywords