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http://dx.doi.org/10.14775/ksmpe.2017.16.2.0108

Characteristics of Nano-Fluid Improvement of Lubrication for Compressor Friction Parts  

Kim, Jae-uk (Kumoh National Institute of Technology Mechanical Design Engineering)
Park, Cheol-min (Kumoh National Institute of Technology Mechanical Design Engineering)
Park, Jung-hack (Nano Technology Inc.)
Park, Sang-ha (Daegu Mechatronics & Materials Institute)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.16, no.2, 2017 , pp. 108-113 More about this Journal
Abstract
The performance of refrigerant oil at the thrust bearing and at the journal bearing of a scroll compressor is a significant factor. This paper presents the friction and anti-wear characteristics of nano-fluid with a mixture of a refrigerant oil and nano powders. The particle size distribution and oxidation stability of nano powders prepared by the electrical explosion method were analyzed by TEM and BET. It was found that the nanoparticles showed a spherical morphology with sizes ranging of 40-60 nm and were covered with graphite layers of 2-4 nm. The thermal conductivity of POE oil was 0.1-0.5W/mk higher than that of POE oil. The coefficient of friction of Cu-POE was found to be 0.1 higher than that of Al2O3. The cooling capacity of the heat pump with nanofluid increased to 3.67%, and the performance was improved by 5.83%.
Keywords
Lubrication Characteristics; Nano-Fluid; Wear characteristic; Lubricating Addtivies; Refrigeration Oil;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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