制冷学报2026，Vol.47Issue(3)：118-124,7.DOI:10.12465/issn.0253-4339.20250409001
R474A和R479A与冷冻机油的溶解特性实验研究
Experimental Research on the Dissolution Characteristics of R474A and R479A in Lubrication Oils
摘要
Abstract
The novel refrigerants R474A and R479A have demonstrated superior performance in terms of environmental friendliness,safety,and thermodynamic properties.However,their solubility in refrigeration oils remains unknown.This study investigates the miscibility and solubility of R474A and R479A in the lubrication oils RB68 and RB100EV.The critical miscibility temperatures of R474A and R479A in RB68 and RB100EV were tested within a temperature range of-20℃to 20℃.The findings reveal that within the experimental temperature range,R474A is miscible in RB68 and RB100EV solutions at different oil contents,and the critical miscibility temperature is lower than-20℃.R479A maintains a homogeneous transparent state in both refrigeration oils,with critical miscibility temperatures below-20℃.Based on the isochoric saturation method,the solubility of R474A and R479A in RB68 and RB100EV was tested within a temperature range of-20℃to 60℃.The solubility of both novel refrigerants in RB68 and RB100EV increased with pressure and decreased with temperature.Based on these findings,for a given temperature range,the enhancing effect of pressure on solubility increases significantly as the pressure increases.关键词
R474A/R479A/冷冻机油/互溶性/溶解度Key words
R474A/R479A/lubrication oils/miscibility/solubility分类
通用工业技术引用本文复制引用
刘健琛,王天浩,金霄,徐东伟,聂昊,山本慧,戴晓业,史琳..R474A和R479A与冷冻机油的溶解特性实验研究[J].制冷学报,2026,47(3):118-124,7.基金项目
国家自然科学基金(52176011,52236003)资助项目.(The project was supported by the National Natural Science Foundation of China(No.52176011&No.52236003).)本文受山西省重点研发计划项目(202302090301005)资助.(The project was supported by Key Research and Development Program of Shanxi Province(No.202302090301005).) （52176011,52236003）
