Surface tension of HFC-161 and compressor oil mixtures. (January 2018)

• Record Type: Journal Article
• Authors: Duan, Wenhao; Zhao, Xiaoming; Zeng, Xiaoyang; Liu, Yu
• Is Part Of: International journal of refrigeration. Volume 85(2018)
• Page Start: 191
• Page End: 199
• Publication Date: 2018-01
• Subjects: Surface tension -- HFC-161 -- Lubricant oil -- Differential capillary rise method; Tension superficielle -- HFC-161 -- Huile lubrifiante -- Méthode de remontée capillaire différentielle; Refrigeration and refrigerating machinery -- Periodicals; 621.56
• DOI: 10.1016/j.ijrefrig.2017.09.025
• Languages: English
• ISSNs: 0140-7007

Abstract

Highlights: The reliability of the experimental setup was checked by measuring the surface tension of HC-600a. The surface tension of mixtures of HFC-161 and three kinds of compressor oil were obtained, and correlations were given. A brief comparison with pure HFC-161 was made. A brief comparison of mixtures with pure refrigerant HFC-161 were made, also the variation tendency were summarized. Abstract: The surface tension of environmental-protection refrigerant ethyl fluoride (HFC-161) and its mixtures with commercial lubricant RL68H, SUNISO SL-32S and SUNISO 3GS were determined in the temperature range from (242 to 370)K by differential capillary rise method. The mass fraction of oil in mixtures is below 2.0%. All the surface tensions of mixtures were correlated as a function of temperature and mass fractions, which can be easy to apply to relevant refrigeration design. Before that, the experimental apparatus was verified by measuring the surface tension of HC-600a. The temperature and surface tension uncertainty were within 12mK, 0.2mN ⋅ m −1, respectively.