Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe<sub>2</sub>O<sub>4</sub> nanocomposites as lubricants additives

doi:10.1007/s11708-017-0453-y

Front. Energy

2020, Vol. 14

Issue (3) : 644-648 https://doi.org/10.1007/s11708-017-0453-y

RESEARCH ARTICLE

Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe₂O₄ nanocomposites as lubricants additives

Ruixiang WANG¹, Yihao ZHANG²(

), Yi LIAO³

¹. Beijing Engineering Research Centre of Sustainable Energy and Buildings, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
². Beijing Institute of Architectural Design, Beijing 100045, China
³. Zhuhai Lingda Compressor Co., Ltd., Zhuhai 519100, China

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Abstract

A novel way for a compressor to improve its coefficient of performance was proposed in this paper. Fullerenes (C70) and NiFe₂O₄ nanocomposites were modified by span 80 and dispersed in refrigeration oil by solid grinding (SG). Besides, the tribological properties of the nanocomposites were investigated using a four ball friction tester. The results show that when the mass concentration of fullerenes nanocomposite is higher than 60 ppm and the concentration of nano-oil is 2 g/L, the friction coefficient decreases from 0.13 to 0.06 which means the wear is reduced. The coefficient of performance of the compressor under the air conditioning test condition can be raised by 1.23%.

Keywords rotary compressor friction coefficient nanocomposite materials coefficient of performance fullerenes (C70)

Corresponding Author(s): Yihao ZHANG

Online First Date: 20 February 2017 Issue Date: 14 September 2020

Cite this article:

Ruixiang WANG,Yihao ZHANG,Yi LIAO. Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe₂O₄ nanocomposites as lubricants additives[J]. Front. Energy, 2020, 14(3): 644-648.

URL:

https://academic.hep.com.cn/fie/EN/10.1007/s11708-017-0453-y
https://academic.hep.com.cn/fie/EN/Y2020/V14/I3/644

Fig.1 TEM scan NiFe₂O₄ nano refrigeration oil

Tab.1 Typical properties of base stock

Fig.2 Four-ball friction tester

Fig.3 Compressor tester

Fig.4 Flowchart of refrigerating compressor performance

Tab.2 Test condition of compressor

Fig.5 Friction and wear reduction percentage

Fig.6 Friction coefficient and its repetition

Fig.7 Variation of oil temperature

Tab.3 Results of refrigerating capacity test of compressor

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