R290/R744/R1234ze(E)三元混合制冷剂pρTx特性的实验研究

IF 2.2 3区工程技术 Q3 CHEMISTRY, PHYSICAL

Journal of Chemical Thermodynamics Pub Date : 2025-08-05 DOI:10.1016/j.jct.2025.107552

Yingxi Qi, Tuo Zheng, Wenlin Xu, Xi Chen, Hua Zhang

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引用次数: 0

摘要

用伯内特等温膨胀法测定了R290/R744/R1234ze(E)三元混合制冷剂在温度为270 ~ 320 K，压力为115 ~ 1861 kPa时的气相pρTx性质。评估了实验系统的标准不确定度：温度不确定度为8.1 mK，压力不确定度为1.7 kPa，质量分数不确定度为0.006。密度的相对标准不确定度为0.006。将实验结果与维里状态方程（EOS）相关联，并拟合了维里系数。拟合的Virial方程计算的压力与实验压力吻合较好，相对偏差在±1.0%以内。该研究对开发新型环保型混合制冷剂具有一定的指导意义。

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Experimental study of pρTx characteristics of R290/R744/R1234ze(E) ternary mixed refrigerants

The gas-phase pρTx properties of the R290/R744/R1234ze(E) ternary mixed refrigerants are measured by the Burnett isothermal expansion method at temperatures ranging from 270 K to 320 K and corresponding pressures from 115 kPa to 1861 kPa. The standard uncertainties of the experimental system are evaluated: temperature uncertainty of 8.1 mK, pressure uncertainty of 1.7 kPa, and mass fraction uncertainty of 0.006. The relative standard uncertainty of density is derived as 0.006. The experimental results are correlated with the Virial equation of state (EOS) and the virial coefficients are fitted. The pressures calculated by the fitted Virial EOS agrees well with the experimental pressures with the relative deviations are within ±1.0 %. This study is useful for development of new environmentally friendly mixed refrigerants.

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来源期刊

Journal of Chemical Thermodynamics 工程技术-热力学

CiteScore

5.60

自引率

15.40%

发文量

199

审稿时长

79 days

期刊介绍： 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. The Journal publishes work relating to gases, liquids, solids, polymers, mixtures, solutions and interfaces. Studies on systems with variability, such as biological or bio-based materials, gas hydrates, among others, will also be considered provided these are well characterized and reproducible where possible. Experimental methods should be described in sufficient detail to allow critical assessment of the accuracy claimed. Authors are encouraged to provide physical or chemical interpretations of the results. Articles can contain modelling sections providing representations of data or molecular insights into the properties or transformations studied. Theoretical papers on chemical thermodynamics using molecular theory or modelling are also considered. The Journal welcomes review articles in the field of chemical thermodynamics but prospective authors should first consult one of the Editors concerning the suitability of the proposed review. Contributions of a routine nature or reporting on uncharacterised materials are not accepted.