Experimental study on the solubility of Propylene (R1270) in PAG, POE and AB lubricants

IF 3.8 2区工程技术 Q1 ENGINEERING, MECHANICAL International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2025-01-29 DOI:10.1016/j.ijrefrig.2025.01.027

Qinying Hou , Zhihao Zhang , Yang Zou, Jialiang Hua, Guogeng He

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Abstract

R1270 is considered a suitable alternative to chlorodifluoromethane (R22) and 1,1,1,2-tetrafluoroethane (R134a) due to its environmentally friendly nature and comparable thermophysical properties. In compression refrigeration systems, the used lubricants need to be matched with alternative refrigerants and exhibit appropriate solubility. Therefore, in this study, the solubility of R1270 in three lubricants: polyalkylene glycol (PAG), polyolester (POE), and alkybenzene (AB) was measured using the isochoric saturation method at temperatures ranging from 283.15 to 323.15 K. Henry's constant was calculated to intuitively compare the solubility of R1270 in the three lubricants. The results indicate that R1270 is miscible with PAG46, POE68, and AB100 lubricants across the entire test temperature range, with the highest solubility observed in PAG46, while POE68 and AB100 exhibit similar solubility characteristics. Subsequently, the non-random two-liquid (NRTL) activity coefficient model was applied to correlate the experimental solubility data. The significance of this study is to provide a reference for the selection of suitable lubricants for R1270 in various applications.

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丙烯（R1270）在PAG、POE和AB润滑油中的溶解度实验研究

R1270被认为是二氟氯甲烷（R22）和1,1,1,2-四氟乙烷（R134a）的合适替代品，因为它具有环保性质和类似的热物理性质。在压缩制冷系统中，使用的润滑剂需要与替代制冷剂匹配，并表现出适当的溶解度。因此，在本研究中，R1270在283.15 ~ 323.15 K的温度范围内，采用等线饱和法测定了R1270在聚烷基二醇（PAG）、聚脂（POE）和烷基苯（AB）三种润滑剂中的溶解度。计算亨利常数，直观地比较R1270在三种润滑剂中的溶解度。结果表明，R1270在整个测试温度范围内均与PAG46、POE68和AB100润滑油相混，其中PAG46的溶解度最高，而POE68和AB100的溶解度相似。随后，采用非随机双液（NRTL）活度系数模型关联实验溶解度数据。本研究的意义在于为R1270在各种应用中选择合适的润滑油提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

期刊介绍： The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.

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