Tribological properties of onion like fullerenes and NiFe₂O₄ nanocomposites in reciprocating motion

Abstract

A novel way for a compressor to improve its coefficient of performance and enhance its reliability by employing nano-refrigeration lubricant oil was proposed. Onion like fullerenes (OLFs) and NiFe₂O₄ nano-composites, modified by Span 80, were dispersed in refrigeration oil KFR22 by solid grinding (SG). Morphologies of NiFe₂O₄ nano-composites were characterized by using transmission electron microscope (TEM). The tribological properties as a refrigeration lubricants additive were investigated using SRV (II), a multi-functional reciprocating friction and wear tester. The results showed that the friction coefficient was decreased from 0.15 to 0.04.

Keywords

refrigeration lubricants / friction coefficient / nano-composites / reciprocating motion / onion like fullerenes

References

[1] Yanagisawa T, Shimizu T, Chu I. Motion analysis of rolling piston in rotary compressor. In: International Compressor Engineering Conference. Purdue University, USA,1982, 185–192

[2] Cho I S. Oh S H, Jung J Y. Lubrication characteristics between the vane and the rolling roller in a rotary compressor used for refrigeration and air-conditioning systems. Journal of Mechanical Science & Technology, 2001, 15(5): 562–568

[3] Ito Y. Hattori H, Miura K. Numerical analysis for rotating motion of a rolling roller in rotary compressors-effective factors for characteristics of rotating motion of a rolling roller. Journal of Developing Societies, 2011, 27(27): 327–353

[4] Huang B, Gao G. Improvement of abnormal wear between the vane-slot and vane in rotary compressor. International Compressor Engineering Conference, Purdue, 2012

[5] Wang X L, Xu B S, Xu Y, Shi P J. He-Long Y U. Study on friction and wear behavior and mechanism of nano-Cu additive in lubrication oils. Tribology, 2007, 27(3): 235–240 (in Chinese)

[6] Battez A H, Gonzalez R. Viesca J L, Fernández J E, Fernández J M D. CuO, ZrO₂ and ZnO nano particles as anti wear additive in oil lubricants. Wear, 2008, 265(S3–4): 422–428

[7] Huang H D, Tu J P, Gan L P. Zou T Z, Li C Z. Preparation and tribological properties of graphite nanosheets as additive in liquid paraffin. Tribology, 2005, 25(4): 312–316

[8] Okaichi A, Hasegawa H, Fumitoshi N. A study on lubrication characteristics of journal and thrust bearings in scroll compressors. In: International Compressor Engineering Conference. West Lafayette, USA, 2004,

[9] Bi S, Guo K, Liu Z, Wu J. Performance of a domestic refrigerator using TiO₂-R600a nano-refrigerant as working fluid. Energy Conversion and Management, 2011, 52(1): 733–737

[10] Xing M B, Wang R X, Yu J. YU J L, Application of fullerene C60 nano-oil for performance enhancement of domestic refrigerator compressors. International Journal Refrigerant, 2014, 40: 398–403

[11] Wang R X, Wu Q P, Wu Y Z. Use of nanoparticles to make mineral oil lubricants feasible for use in a residential air conditioner employing hydro-fluorocarbons refrigerants. Energy and Building, 2010, 42(11): 2111–2117

[12] Wang R X, Wu Q P, Xie G Z, Wu Y Z. Dispersion stability of nanopowder in refrigerant oil. Chemical Engineering Journal, 2010, 61(S2): 1–7

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