대한설비공학회:학술대회논문집 (Proceedings of the SAREK Conference)
- 대한설비공학회 2006년도 하계학술발표대회 논문집
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- Pages.590-595
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- 2006
R-22 냉매 분위기하에서 스크롤 압축기 스러스트 베어링의 윤활특성 평가
Performance Evaluation of Thrust Slide-Bearing of Scroll Compressors under R-22 Environment
- 조상원 (부산대학교 기계공학과) ;
- 김홍석 (부산대학교 기계공학과) ;
- 이재근 (부산대학교 기계공학과) ;
- 이형국 (LG 전자(주)) ;
- 이병철 (LG 전자(주)) ;
- 박진성 (LG 전자(주))
- Cho, Sang-Won ;
- Kim, Hong-Seok ;
- Lee, Jae-Keun ;
- Lee, Hyeong-Kook ;
- Lee, Byeong-Chul ;
- Park, Jin-Sung
- 발행 : 2006.06.21
초록
This paper presents the friction and anti-wear characteristics of nano-oil with a mixture of a refrigerant oil and carbon nano-particles in the thrust slide-bearing of scroll compressors. Frictional loss in the thrust slide-bearing occupies a large part of total mechanical loss in scroll compressors. The characteristics of friction and anti-wear using nano-oil are evaluated using the thrust bearing tester for measuring friction surface temperature and the coefficient of friction at the thrust slide-bearing as a function of normal loads up to 4,000 N and orbiting speed up to 3,200 rpm. It is found that the coefficient of friction increases with decreasing orbiting speed and normal force. The friction coefficient of carbon nano-oil is 0.015, while that of pure oil is 0.023 under the conditions of refrigerant gas R-22 at the pressure of 5 bars. It is believed that carbon nano-particles can be coated on the friction surfaces and the interaction of nano-particles between surfaces can be improved the lubrication in the friction surfaces. Carbon nano-oil enhances the characteristics of the anti-wear and friction at the thrust slide-bearing of scroll compressors.
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