化工学报2019，Vol.70Issue(9)：3248-3255,8.DOI:10.11949/0438-1157.20190354
R290/R1234yf与矿物油的互溶性测试及评价方法
Miscibility measurement and evaluation method of R290/R1234yf with mineral oil
摘要
Abstract
The miscibility of refrigerant and lubricating oil directly affects the service life and cycle performance of refrigeration system. To solve the problem of matching new refrigerant and lubricating oil, a refrigerant and lubricating oil compatibility test system was established. The experimental study on the miscibility of R290/R1234yf and mineral oil was carried out in the temperature range of 223.15—303.15 K. The results show when R290 mass fraction in mixed refrigerant R290/R1234yf changed from 25% to 35% and oil proportion was specified at 10%±0.5%, the critical miscibility temperature of R290/R1234yf and mineral oil decreased with increasing R290. In the test range of oil proportion, based on the common refrigeration conditions, when the mass fraction of R290 in solution changed between 20% and 30%, the critical miscibility temperature was sensitive to the change of components. When the R290 mass fraction in solution was over 30%, the refrigerant/oil solution was believed to be clear and transparent. When the R290 mass fraction in solution was below 20%, the obvious stratification or large flocs would appear. By means of the element contribution evaluation method, the theoretical critical miscibility temperature prediction equation was provided and given in the form of ternary diagram, which has practical guiding significance for the development of new environmental protection refrigerants.关键词
R290/R1234yf/矿物油/混合物/互溶性/溶解/实验验证/临界互溶温度Key words
R290/R1234yf/mineral oil/mixtures/miscibility/dissolution/experimental validation/critical miscibility temperature分类
通用工业技术引用本文复制引用
陈裕博,杨昭,翟瑞,冯彪,吕子建,赵文仲,葛滢滢..R290/R1234yf与矿物油的互溶性测试及评价方法[J].化工学报,2019,70(9):3248-3255,8.基金项目
国家自然科学基金重点项目(51936007) （51936007）
国家自然科学基金项目(51741607) （51741607）
