Yanjun Sun , Shibiao Wang , Haiqi Zheng , Xiaopo Wang
{"title":"R-1243zf 与 PAG 68、POE 85 和 PEC4 油的二元混合物的相行为和焓","authors":"Yanjun Sun , Shibiao Wang , Haiqi Zheng , Xiaopo Wang","doi":"10.1016/j.jct.2024.107263","DOIUrl":null,"url":null,"abstract":"<div><p><span><span><span>The increasing concerns of global warming impact of traditional HFC refrigerants drives the requirement for alternatives more urgent. Due to the excellent properties (zero ODP, extremely-low </span>GWP, nonflammable, nontoxic, etc.), 3,3,3-Trifluoropropene (R-1243zf) is attracting a lot of fashionable attention in the refrigeration and air conditioning (RAC) industry. To better understand the oil existence influence on the performance of an </span>evaporator, the vapor–liquid-phase equilibrium were measured for R-1243zf with PAG 68, PEC4, and POE 85 oils by an isochoric method between (298.15 and 343.15) K. The NRTL model was applied to correlate the phase-equilibrium data. The pressure-enthalpy-vapor quality (</span><em>p-h-X</em>) diagrams were plotted for R-1243zf and R-1243zf/lubricant blends with different oil-circulation mass fractions (<em>C<sub>g</sub></em>), and the differences in enthalpies were analyzed. There is a critical vapor quality (<em>X<sub>cri</sub></em>) between the isotherm curves. On the left side of <em>X<sub>cri</sub></em>, isotherm curves are almost identical. On the right side of <em>X<sub>cri</sub></em>, these curves separated gradually especially at high vapor quality.</p></div>","PeriodicalId":54867,"journal":{"name":"Journal of Chemical Thermodynamics","volume":"192 ","pages":"Article 107263"},"PeriodicalIF":2.2000,"publicationDate":"2024-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Phase behavior and enthalpies of binary mixtures of R-1243zf with PAG 68, POE 85 and PEC4 oils\",\"authors\":\"Yanjun Sun , Shibiao Wang , Haiqi Zheng , Xiaopo Wang\",\"doi\":\"10.1016/j.jct.2024.107263\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span><span><span>The increasing concerns of global warming impact of traditional HFC refrigerants drives the requirement for alternatives more urgent. Due to the excellent properties (zero ODP, extremely-low </span>GWP, nonflammable, nontoxic, etc.), 3,3,3-Trifluoropropene (R-1243zf) is attracting a lot of fashionable attention in the refrigeration and air conditioning (RAC) industry. To better understand the oil existence influence on the performance of an </span>evaporator, the vapor–liquid-phase equilibrium were measured for R-1243zf with PAG 68, PEC4, and POE 85 oils by an isochoric method between (298.15 and 343.15) K. The NRTL model was applied to correlate the phase-equilibrium data. The pressure-enthalpy-vapor quality (</span><em>p-h-X</em>) diagrams were plotted for R-1243zf and R-1243zf/lubricant blends with different oil-circulation mass fractions (<em>C<sub>g</sub></em>), and the differences in enthalpies were analyzed. There is a critical vapor quality (<em>X<sub>cri</sub></em>) between the isotherm curves. On the left side of <em>X<sub>cri</sub></em>, isotherm curves are almost identical. On the right side of <em>X<sub>cri</sub></em>, these curves separated gradually especially at high vapor quality.</p></div>\",\"PeriodicalId\":54867,\"journal\":{\"name\":\"Journal of Chemical Thermodynamics\",\"volume\":\"192 \",\"pages\":\"Article 107263\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2024-01-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Chemical Thermodynamics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0021961424000168\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Chemical Thermodynamics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0021961424000168","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Phase behavior and enthalpies of binary mixtures of R-1243zf with PAG 68, POE 85 and PEC4 oils
The increasing concerns of global warming impact of traditional HFC refrigerants drives the requirement for alternatives more urgent. Due to the excellent properties (zero ODP, extremely-low GWP, nonflammable, nontoxic, etc.), 3,3,3-Trifluoropropene (R-1243zf) is attracting a lot of fashionable attention in the refrigeration and air conditioning (RAC) industry. To better understand the oil existence influence on the performance of an evaporator, the vapor–liquid-phase equilibrium were measured for R-1243zf with PAG 68, PEC4, and POE 85 oils by an isochoric method between (298.15 and 343.15) K. The NRTL model was applied to correlate the phase-equilibrium data. The pressure-enthalpy-vapor quality (p-h-X) diagrams were plotted for R-1243zf and R-1243zf/lubricant blends with different oil-circulation mass fractions (Cg), and the differences in enthalpies were analyzed. There is a critical vapor quality (Xcri) between the isotherm curves. On the left side of Xcri, isotherm curves are almost identical. On the right side of Xcri, these curves separated gradually especially at high vapor quality.
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The Journal of Chemical Thermodynamics exists primarily for dissemination of significant new knowledge in experimental equilibrium thermodynamics and transport properties of chemical systems. The defining attributes of The Journal are the quality and relevance of the papers published.
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