含 R290 和氢氟烯烃的三种二元混合物临界参数的实验研究和相关性

IF 3.5 2区 工程技术 Q1 ENGINEERING, MECHANICAL
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引用次数: 0

摘要

R290(丙烷)和 R1234yf(2,3,3,3-四氟丙烯)、R1243zf(3,3,3-三氟丙烯)或 R1234ze(E)(反式-1,3,3,3-四氟丙烯)的混合物可能成为高全球升温潜能值(GWP)制冷剂氢氟碳化合物(HFCs)和氯氟烃(HCFCs)的潜在替代品。获得混合物的关键参数对于建立热力学模型、评估制冷剂的最高工作温度、确定相包络以及确认 Widom 线的起点至关重要。然而,对其临界特性的研究却很少。在这项工作中,利用金属波纹管体积仪器,通过实验获得了包含 R290 + R1234yf / R1243zf / R1234ze(E) 的三个二元体系的临界特性。临界状态是通过直接目测临界乳白和气液相界面的复现来判断的。摩尔分数、临界压力、临界温度和临界密度的扩展总不确定性分别低于 0.004、21 kPa、50 mK 和 0.6 %(k = 2,置信系数为 0.95)。通过修正威尔逊法和 Redlich-Kister 法对实验获得的临界数据进行了相关分析。使用相关修正威尔逊(CMW)法、He 等人的方法和修正扩展 Chueh-Prausnitz (MECP) 法预测了 R290 + R1234yf、R290 + R1243zf 和 R290 + R1234ze(E) 混合物的临界参数。采用相关曲线和预测结果与本研究的实验结果进行比较。同时,还将实验获得的关键参数数据与 REFPROP 10.0 和其他公开文献的值进行了对比。拟合曲线和预测曲线与实验结果基本吻合。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental study and correlation of critical parameters for three binary mixtures containing R290 and hydrofluoroolefins

The mixtures of R290 (propane) and R1234yf (2,3,3,3-tetrafluoroprop-1-ene), R1243zf (3,3,3-trifluoropropene), or R1234ze(E) (trans-1,3,3,3-tetrafluoropropene) could be potential alternatives for high global warming potential (GWP) refrigerants hydrofluorocarbons (HFCs) and hydrochlorofluorocarbons (HCFCs). Obtaining the critical parameters of mixtures is crucial for establishing thermodynamic models, evaluating the highest operating temperature of refrigerants, determining the phase envelope, and confirming the starting point of the Widom line. However, few studies have been made on their critical properties. In this work, the critical properties of three binary systems containing R290 + R1234yf / R1243zf / R1234ze(E) are obtained experimentally with a metal-bellows volume apparatus. The critical state is judged by direct visual observation of critical opalescence and the recurrence of the vapor-liquid phase interface. The extended total uncertainties for the mole fraction, critical pressure, critical temperature, and critical density were below 0.004, 21 kPa, 50 mK, and 0.6 % (k = 2, 0.95 confidence coefficient), respectively. Experimentally obtained critical data are correlated by the Modified Wilson method and the Redlich–Kister method. The critical parameters of the R290 + R1234yf, R290 + R1243zf, and R290 + R1234ze(E) mixtures are predicted using the Correlated Modified Wilson (CMW) method, He et al.’s method, and the Modified Extended Chueh–Prausnitz (MECP) method. The correlated curve and predicted outcomes are employed for comparison with this work's experimental results. Meanwhile, the critical parameters data obtained experimentally are contrasted with the value of REFPROP 10.0 and other open literature. The fitting and prediction curves somewhat agree with the experimental results.

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来源期刊
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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