制冷剂
化学
润滑油
二氟甲烷
等容过程
热力学
制冷
化学工程
有机化学
物理
工程类
气体压缩机
作者
Xiucan Jia,Jian Wang,Yusheng Hu,Yanjun Sun,Xiaopo Wang
标识
DOI:10.1021/acs.jced.0c00261
摘要
Difluoromethane (R32) as a refrigerant with zero ozone depletion potential and low global warming potential has received extensive attention in the refrigeration industry. The phase behavior of refrigerant/lubricant mixtures has a critical effect on the performance and operation safety in a compression-refrigeration system. Using the isochoric saturation method, the solubilities of refrigerant R32 in POE75 and in PVE68 lubricant were measured from 278.15 to 348.15 K. The results indicate that there is no sediment, no color change, and no stratification during the whole experiment. The nonrandom two-fluid equation was used to correlate the experimental data. For both oils, solubilities of R32 increase with the decrease of temperature and increase of pressure. R32 is more soluble in PVE than in POE. In addition, the Henry’s constants were calculated for R32 in both oils at different temperatures.
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